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Title: IMPORTANT questions
Description: Important questions of biology help you to score more in exam
Description: Important questions of biology help you to score more in exam
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ु क्र ०२०२४४७६९३८
Emailsciencedept@maa
...
in
महाराष्ट्र शासन
शालेय शिक्षण व क्रीडा विभाग
राज्य शैक्षणिक संशोधन व प्रशिक्षण परिषद,महाराष्ट्र
७०८ सदाशिव पेठ, कुमठे कर मार्ग, पण
ु े ४११०३०
...
2
...
1
Subject -BIOLOGY (56)
INDEX
Sr
...
1
...
3
REPRODUCTION IN LOWER AND HIGHER ANIMALS
6
3
...
MOLECULAR BASIS OF INHERITANCE
12
5
...
PLANT WATER RELATION
7
...
RESPIRATION AND CIRCULATION
26
9
...
ER
TM
,P
U
N
15
18
21
HUMAN HEALTH AND DISEASES
34
11
...
BIOTECHNOLOGY
41
13
...
ECOSYSTEMS AND ENERGY TRANSFER
45
15
...
2
1
...
A
...
cellulose
C
...
Sporopollenin
Sporoderm is made up of …………
...
exosporium and endosporium
B
...
testa and tegmen
D
...
A
...
1 mitosis and 3 meiosis
C
...
1 meiosis and 3 mitosis
...
A
...
Bottle brush
C
...
Sausage
In vitro pollen germination and pollen tube elongation can be induced by—
A
...
glucose
C
...
sucrose
Self-incompatibility is found in flowers of plants…
...
Calotropis
B
...
Thea
D
...
A
...
chalaza
C
...
stigma
……… is an example of helobial endosperm
...
Adoxa
B
...
Asphodelus
D
...
coleoptile
B
...
aleurone layer
D
...
A
...
pea
C
...
bean
E
1
8
9
10
3
12
13
U
N
14
Grafting is not possible in monocots because of --A
...
open vascular bundles
C
...
absence of cambium
Conidia formation is commonly seen in
A
...
Paramecium
C
...
Penicillium
Which of the following is not the method of asexual reproduction?
A
...
Fragmentation
C
...
Binary fission
The plant part used for raising stem in grafting is –
A
...
Stock
C
...
Any plant part
E
11
VERY SHORT ANSWER QUESTIONS (1 MARK EACH)
ER
TM
,P
What is reproduction?
What are clones?
Give example of organism which produces zoospore
...
SC
1
2
...
Explain grafting as a method of artificial method of vegetative reproduction
...
S
...
Describe the structure of pollen grain
...
Describe the structure of female gametophyte of angiosperms
...
What are the different adaptations shown by bird pollinated flowers?
Explain heterostyly and herkogamy with suitable example
...
Mention significance of fruit and seed formation
...
4
SHORT ANSWER TYPE (SA-II) QUESTIONS (3 MARKS EACH)
5
6
7
8
9
10
11
12
Explain various methods of vegetative reproduction
...
Explain the development of male gametophyte in angiosperms (diagram is not
expected)
...
Give an account of any two biotic agents for pollination along with their
adaptations
...
Describe the process of fertilization in angiosperms with the help of diagram
...
Describe the development of dicot embryo in flowering plants
...
Explain various categories of apomixis
...
Describe the structure of anatropus ovule with the help of labelled diagram
...
Give an account of various abiotic agencies used in pollination along with their
adaptations for pollination
...
Describe the process of double fertilization in angiosperms and add a note on its
significance
...
REPRODUCTION IN LOWER AND HIGHER ANIMALS
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
The primary sex organ in human males is
A
...
seminal vesicle
C
...
testis
Seminal fluid is ------- in nature
...
acidic
B
...
sugary
D
...
body
B
...
fundus
D
...
thyrotropic hormone
B
...
somatotropic hormone
D
...
acrosome of sperm
B
...
middle piece of sperm
D
...
of embryonic layer
...
endoderm
B
...
ectoderm
D
...
days of pregnancy
...
280
B
...
266
D
...
A
...
tubectomy
C
...
castration
The organism which causes Gonorrhoea is……
A
...
Neisseria
C
...
Salmonella
How many pairs of testis are present in human male?
A
...
1 pair
C
...
only one ovary
9
10
6
11
...
to their
parents
...
genetically similar
B
...
morphologically and genetically similar
D
...
A
...
Hydra
E
C
...
Planaria
N
The aggregate of dormant cells capable of developing into new organism in
gemmule is called as
A
...
Archaeocytes
D
...
What is glans penis?
What is atresia with respect to ovary in human females?
Name the hydrolytic enzyme secreted by the acrosome
...
Identify the permanent birth control method in the given diagram
...
7
N
U
What is lactation? Which hormone is responsible for its regular secretion?
Mention any two different goals of RCH programme
...
Write a note on budding
...
S
...
Describe the structure of Graafian follicle
...
Give an account of external genitalia in human females
...
Write an account of cleavage during embryonic development in humans
...
ER
TM
,P
1
2
3
4
5
6
7
8
9
E
SHORT ANSWER TYPE (SA-I) QUESTIONS (2 MARKS EACH)
SHORT ANSWER TYPE QUESTIONS (SA-II) (3 MARKS EACH)
1
2
3
Explain various methods of asexual reproduction in lower animals
...
Identify the labels from the given diagram
...
Explain the structure of human sperm with labelled diagram
...
Write a note on implantation
...
Answer the following
question based on these trimester
...
iii) The organ which secretes hormone in second trimester is…
Explain the process of parturition
...
Explain any three methods that can be used to overcome infertility
...
Explain ovarian cycle with its different phases
...
Explain mechanism of fertilization in humans
...
9
3
...
Dominance, segregation and independent assortment
B
...
Linkage, dominance and segregation
D
...
Which one of the following is back cross?
A
...
F1 × Recessive parent
C
...
F1 × Any parent
RR (Red) Antirrhinum is crossed with white (WW) one
...
This is an example of
A
...
Incomplete dominance
C
...
Supplementary genes
The word chromosome was coined by
A
...
Waldeyer
C
...
T
...
Morgan
Nullisomy is represented by
...
(2n-1)
B
...
(2n+1)
D
...
Monoploidy
B
...
Polyploidy
D
...
XX-XY
B
...
ZZ-ZO
D
...
The chance of its beings
a son is ……
A
...
25%
C
...
100%
In human beings 45 chromosomes/single X/XO abnormality causes
A
...
Klinfelter's syndrome
C
...
Edward's syndrome
Webbed neck is characteristic of … syndrome
...
XXX B
...
XXY D
...
What is allelomorph?
What is test cross?
Define euploidy
...
How many linkage groups are present in Drosophila melanogaster?
Which genes show straight inheritance?
How drones are produced in honey bees?
What is the reason for 21st trisomy?
Give the example of X- monosomy you have studied
...
Explain test cross with suitable example and state its ratios
...
Explain codominance in colour coat in cattle with checker board method
...
Write a note on sex linkage
...
Explain mechanism of sex determination in birds
...
ER
TM
,P
1
2
3
4
5
6
7
8
9
10
E
SHORT ANSWER TYPE QUESTIONS (SA-I) (2 MARKS EACH)
SHORT ANSWER TYPE QUESTIONS (SA-II) (3 MARKS EACH)
1
2
3
4
SC
5
6
7
8
9
10
Enlist dominant and recessive characters in pea plant with respect to position of
flower, colour of seed and colour of pod in tabulated form
...
Describe the structure of sex chromosomes with the help of labelled diagram
...
Explain the inheritance pattern of colour blindness with suitable chart
...
Explain the mechanism of sex determination in humans with suitable chart
...
What are the different characters that develop due to Klinfelter’s syndrome?
Give reasons for development of Turner’s syndrome and also mention its
symptoms
...
Give statements for various laws of inheritance
...
Explain structure of chromosomes with labelled diagram
...
Give an account of one Mendelian and one chromosomal disorder you have
studied
...
MOLECULAR BASIS OF INHERITANCE
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
4
5
6
E
SC
7
N
3
U
2
Find the odd one out:
A H 2A
B H3
C H2B
D H1
What happened when heat killed S-cells along with live R-cells were injected
into mice?
A Mice died and showed live S-cells
B Mice survived and showed live S-cells
C Mice died and showed live R-cells
D Mice died and showed dead R-cells
Find out the double ring compound :
A Adenine
B Uracil
C Cytosine
D Thymine
If a DNA has 20 Adenine and 30 cytosine bases
...
New strand
synthesized on it will be :
A GATCAUATG
B GTACTAACG
C GAACTAATG
D GTACTAATG
During DNA replication, the separated strands of DNA are prevented from
recoiling by
A DNA primase
B Sigma factor
C Rho-factor
D SSBP
In which of the following synthesis of DNA strand is not involved directly?
A m RNA
B t RNA
C Another DNA strand
D Protein
Wobble hypothesis is related with
A Ambiguity in codon
B Purine pyrimidine equality
C Genetic code is triplet
D Degeneracy of genetic code and economy of tRNA molecules in the cell
ER
TM
,P
1
8
9
12
14
SC
ER
TM
15
E
13
N
12
U
11
During elongation of polypeptide chain, sigma factor is :
A Functionless
B Retained for specific function
C Released for re-use
D Required during closing of chain
Enzyme required for peptide formation is :
A Peptidase
B Peptidyl transferase
C Nitrogenase
D Nitrate reductase
Exon segments are reunited after splicing by
A RNA primase
B RNA protease
C RNA polymerase
D RNA ligase
In lac operon, lactose acts as:
A Inducer
B Co-inducer
C Repressor
D Co-repressor
A unit of lac-operon which in the absence of lactose, suppresses the activity
of operator gene is :
A Structural gene
B Regulatory gene
C Repressor protein
D Promoter gene
A DNA segment has 75 cytosine and 40 thymine nucleotides
...
What is meant by activation of amino acids?
What is the role of Mg++ in Translation?
What are the different types of mutations?
Enlist the names of enzymes used in semiconservative replication of DNA?
What is central dogma of molecular biology?
What type of isotopes used in semiconservative replication experiments?
What is the function of RNA primer?
What is the function of SSBP?
Define RFLP’
Define Heterochromatin
13
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS EACH)
1
2
3
4
5
6
7
8
9
10
Differentiate between Heterochromatin & Euchromatin’
How t-RNA acts as an adapter molecule? Explain in detail with the help of a
diagram
...
State its two types
Describe Hershey-Chase experiment in detail
...
Draw neat and labelled diagram of Nucleosome
...
Write a note on: packaging of DNA in Eukaryotes
...
N
SC
ER
TM
8
9
U
7
Explain the Griffith’s experiment in detail with diagram
...
Mention any three objectives of Human Genome project
...
Draw a neat and labelled diagram of transcription and processing of hn-RNA
Draw a neat and labelled diagram explaining Meselson’s and Stahl’s
experiment
...
Give diagrammatic representation of Lac-operon in the presence of an
inducer
...
Give any two applications of genomics
...
Describe the mechanism of translation with the help of a neat and labelled
diagram
...
With respect to lac- operon explain the following terms:i) regulator gene
ii) promoter gene
iii) structural gene
iv) inducer
Define DNA fingerprinting? State any three applications of it
...
ORIGIN AND EVOLUTION OF LIFE
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
4
E
SC
ER
TM
5
N
3
U
2
____________ is considered as connecting link between ape and man
...
A Marsupial
B Lemur
C Chimpanzees
D Tarsier
The proportion of an allele in the gene pool to the total number of alleles at a
given locus is called ___________
...
A deletion
B duplication
C inversion
D translocation
Any random fluctuation in allele frequency, occurring in the natural population
by pure chance is called __________
...
Does not explain survival of fittest
B
...
It is unable to explain the ‘arrival of fittest’
D
...
2p+pq+q2
B
...
p2+2pq+q2
D
...
A
...
Similar ancestry but similar or dissimilar functions
C
...
Dissimilar ancestry and similar functions
9
In which epoch rise of monocots was seen?
A
...
Oligocene
C
...
Palaeocene
15
11
...
Third eye
B
...
Wisdom teeth
D
...
Vestigial organ
B
...
homologous organs
D
...
Morning prime rose
B
...
Evening prime rose
D
...
Define mutation
...
Define Gene pool
...
Name the ancestor of human nicknamed as Handy man
Whose fossils were discovered at the site of Shivalik hills, India?
,P
1
2
3
4
5
N
VERY SHORT ANSWER QUESTIONS (1MARK EACH)
SHORT ANSWER TYPE QUESTIONS (SA-I) ( 2MARKS EACH)
1
2
3
4
5
6
7
8
9
10
11
12
13
Write a note on coacervates?
Draw a labelled diagram of Urey-Miller’s experiment
...
Give various evidences in support of Darwinism
...
What are the main features of mutation theory?
Write a note on genetic drift
...
Explain any two types of fossils and mention two points of significance of
palaeontology
...
Explain various molecular evidences in support of organic evolution
...
Mention any two developments in human which helped him to move around
safely on land
...
What is hybrid sterility?
What led to better utilization of hands for holding objects effectively and better
motor skills?
Describe modern man
...
Give an account of Hardy-Weinberg’s principle with suitable example
...
Give an account of rudimentary organs with suitable examples
...
Name any three types of postmating isolating mechanisms
...
What is chromosomal aberration? Give any two types of aberrations found in
the population
...
ER
TM
,P
1
2
3
4
5
6
7
8
9
Ancestors
Homo erectus
Special features
Buried their dead
Made tools from
stones
11
Write a note on Homo habilis
LONG ANSWER TYPE QUESTIONS (LA) (4 MARKS EACH)
Explain any two types of natural selection
...
How homology and analogy of organs support evolution, explain
...
Explain the concept of Natural Selection with the example of Industrial
Melanism
...
PLANT WATER RELATION
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
4
5
6
E
SC
7
N
3
U
2
Water present in the form of hydrated oxides of Silicon, Aluminium is
called _______________
A Hygroscopic Water
B Gravitational Water
C Combined Water
D Capillary Water
Most plant cells and tissues constitutes _______% water
A 90-95 %
B 70-80 %
C 10-25 %
D 0-20 %
______________ type of tissues are present in epiphytic roots
A Meristematic
B Parenchyma
C Velamen
D Epithelial
In the zone of absorption, epidermal cells form unicellular hair like
extensions called _________
A Epiblema cells
B Roots
C Root hairs
D Velamen tissues
Outer layer of root hair is made up of _________
A Cellulose
B Lignin
C Starch
D Pectin
Inner layer of root hair is made up of __________
A Cellulose
B Lignin
C Starch
D Pectin
Cell wall is __________
A Selectively Permeable
B Freely Permeable
C Non Permeable
D Impermeable
Plasma Membrane is ___________
A Selectively Permeable
B Freely Permeable
C Non Permeable
D Impermeable
Root hair is _____________ extension of epiblema cells
A Cytoplasmic
B Protoplasmic
C Nucleoplasmic
D Cellulosic
Fine soil particles imbibe or absorb water and hold it
...
Pure water
B
...
Hypotonic solution
D
...
Solid
B
...
Imbibate
D
...
Ultimately it becomes symplastic at
...
Pericycle
B
...
Xylem
D
...
Capillary force
B
...
Root pressure
D
...
Nerium
B
...
Grass
D
...
What is DPD?
Which symbol is used to denote water potential?
What do you understand by the term lateral conduction of food?
Which organ is mainly involved in guttation?
SC
1
2
3
4
5
6
7
8
9
10
11
12
...
Explain the structure of root hair
...
Define imbibate and imbibant
...
Differentiate between exosmosis and endosmosis
...
Give various objections to root pressure theory
...
Give advantages of transpiration
...
Draw a neat and labelled diagram of Root hair
...
How roots can act as a water absorbing organ?
5
Why capillarity theory was discarded?
6
Explain the concept of water potential
...
8
Describe the path of water across the root with the help of labelled diagram
9
Differentiate between passive and active absorption
...
Explain transpiration pull theory for ascent of sap
...
20
7
...
Which of the following
chemicals he can use to overcome the problem?
A IBA
B IAA
C NAA
D 2,4 – D
Gibberellins are synthesised from ______
...
A Rice plants
B Tobacco callus
C Maize grains
D Human urine
The plant growth is oftenly described as localized due to
A
...
Permanent tissue
C
...
Xylem only
Actual visible growth is seen during
A
...
phase of maturation
C
...
phase of differentiation
The correct equation for arithmetic growth is
A
...
W1=W0
...
L0 = Lt +rt
D
...
ert
The tissues formed by redifferentiation are
A
...
Secondary meristem
C
...
Secondary xylem and secondary phloem
Loss or non-development of chlorophyll resulting in yellowing of leaf is called
as
A
...
necrosis
C
...
Mottling
The element required in phosphorylation reaction is
A
...
Ca
C
...
D
...
Nitrosomonas B
...
Nitrobacter
D
...
coli
ER
TM
,P
1
8
9
10
21
VERY SHORT ANSWER TYPE QUESTIONS ( 1 MARK EACH)
1
2
E
N
What type of changes take place during elongation phase?
Identify A,B,C and D in the given diagram,
Give any two points of difference between exponential and sigmoid growth
curve
...
Buyers often complain that a particular fruit merchant uses some chemical to
ripen fruits in his shop
...
Why is ABA known as antitranspirant?
Name the tissue that transports hormones within the plant body?
What is critical photoperiod?
Which pigment receives stimulus of light for flowering?
Which chemical stimulates vernalization?
What is critical concentration?
Which enzyme is activated by iron?
What is the site of nitrogen fixation in BGA?
Name the enzyme used in transamination?
Name the element that plays major role in determination of solute
concentration
...
Give an account of vernalization
...
Describe the process of amino acid synthesis
...
10
11
12
13
...
i) What should he do to achieve the same?
ii) Which property of phytohormones he must be aware of?
Give an account of nitrification
...
Different elements are required by the plant for its growth and development
...
Some elements are mentioned below,
write the form in which they are absorbed,Boron, molybdenum, phosphorus
and nitrogen
23
SHORT ANSWER TYPE QUESTIONS(SA-II) (3 MARKS EACH)
Explain various phases of growth
...
Molybdenum
a
...
Zinc
b
...
Copper
c
...
Boron
d
...
Chlorine
e
...
Manganese
f
...
SC
6
ER
TM
,P
3
i
...
What is the mathematical expression for this growth?
iii
...
Parenchyma in hydrophytes develops schizogenous interspaces for
support and aerationb
...
Formation of secondary xylem and secondary phloem
Give an account of denitrification
...
What is grand period of growth?
Match the columns based on element and its role in plants
...
Give an account of Donnan’s equilibrium
...
b) Biological name of fungus from which Gibberellins were first isolated
...
Write the name of ____
a) Gaseous growth hormone known to you
...
c) Hormone that can overcome the requirement of vernalization
...
Draw schematic representation of nitrogen cycle
...
RESPIRATION AND CIRCULATION
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
4
5
E
D) Left ventricle
The phase of contraction of heart is termed as _____
...
A) Acetyl co-enzyme A
B) ADP
C) ADPH 2
D) ATP
Alveoli provide the surface area for exchange of ________
...
A) digestion
B) circulation
C) excretion
D) respiration
The volume of air that remains in the lungs after maximum respiration is
__________
...
A) Cockroach
B) Scoliodon
C) Frog
D) Human
Which of the following has thickest wall?
A) Right auricle
B) Right ventricle
C) Left auricle
ER
TM
,P
1
7
8
9
D) heart sound
The free edges of cuspid valves are attached to the papillary muscles of the heart
by fibres are called ___________
...
A) P wave B) QRS complex C) T wave D) P and T waves
26
10
11
The erythropoeitic tissue in adult is mainly found in ___________
...
Angiography
B
...
EEG
D
...
SC
10
N
5
6
7
8
9
U
2
3
4
Name the cartilage which divides the nasal cavity into right and left nasal
chambers
...
Define total lung capacity
...
Identify the disorder
...
Which type of blood flows through pulmonary veins?
In between which layers of pericardium, pericardial fluid is present?
How many molecules of haemoglobin are found in each erythrocyte?
Identify ‘A’ from the following ECG
...
12
13
14
What is sinusitis?
What is ventilator?
Define heart transplant
...
27
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
Fill in the blanks with the help of chart
...
Give any two effects of carbon monoxide poisoning
...
Name the pigment and enzyme found in erythrocytes?
Draw diagram of conducting system of human heart
...
How a portal vein differs from normal vein?
Write an account of silent heart attack
...
N
7
8
9
E
1
SC
4
Distinguish between inspiration and expiration
...
Define Hamburger’s phenomenon
...
Draw the chart of double circulation and label A, B, C and D
...
Write a note on coagulation of blood
...
Explain coronary artery disease and angina pectoris
...
Explain ventricular systole
...
28
LONG ANSWER TYPE QUESTIONS(LA) (4 MARKS)
With the help of labelled diagram explain the exchange of gases between
alveolus and capillary
...
With the help of chart identify and write the function of any four leucocytes
...
------------
------------
------------
------------
Agranulocytes
Draw labelled diagram of internal structure of human heart
...
Write a function of Eustachian and tricuspid valve found in human heart
...
CONTROL AND COORDINATION
MULTIPLE CHOICE QUESTIONS (1 MARK EACH)
4
5
6
E
SC
7
N
3
U
2
Diffused type of nervous system is seen in ________
...
A nerve net
...
A subliminal
B depolarised
C threshhold
D polarised
The resting potential of a neuron is _____
...
A Foramen of Monro
B Duct of Sylvius
C Metacoel
D Eustachian tube
Degeneration of dopamine producing neurons in the CNS causes __________
disease
...
A Aldosterone
B Cortisol
C Corticoid
D Androgen
________ has an important role in the development of immune system by
maturation of T lymphocytes
...
A Acromegaly
B Dwarfism
C Gigantism
D Goitre
__________ shows gastric contractions and inhibits the secretion of gastric juice
...
What is the covering of nerve fascicule called?
How electrical synapse differs from chemical synapse?
What is the function of red nucleus?
Define Saltatory conduction
...
Which disease is caused by hyper secretion of Glucocorticoids?
Which organ acts a temporary endocrine gland in females?
Give one role of hormone therapy
...
What is monosynaptic reflex?
Which exteroreceptors is located in semi-circular canals?
Which receptor denotes the change in B
...
?
Which is the outermost layer of human eye?
Which cells of retina are responsible for scotopic vision?
Name the structure that connects the middle ear to pharynx
...
12
13
...
16
17
18
19
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
1
2
3
4
Which hormone is secreted by Pineal gland? What is its function?
Sketch and label T
...
Sketch and label V
...
Explain any two exteroreceptors with location and function
...
Write a note on lens part of human eye
...
Write a note on rod cells and cone cells
...
Which two hormones are responsible for the regulation of calcium and
phosphorus in the blood?
Describe any two hormones produced by the ovaries
Name the glucocorticoid used in treatment of allergy and why?
12
...
Describe any three functions of hypothalamus
...
Distinguish between Cerebrum and Cerebellum
...
31
E
7
8
9
10
Complete the table based on disorders caused due to under secretion or over
secretion of Thyroid gland
...
Give the names of the hormones released by neurohypophysis
...
Name the disease he is suffering from
...
Describe the structure of choroid / uvea
...
SC
LONG ANSWER TYPE QUESTIONS(LA) (4 MARKS)
1
2
3
4
5
Describe the functional areas of Cerebrum
...
Describe any four hormones secreted by Adenohypophysis
...
Complete the flowchart of the process of conduction of nerve impulse
...
Explain the structure of retina with the help of a labelled diagram
...
33
10
...
Artificial Acquired
B
...
Innate
D
...
A
...
Acquired through readymade antibodies
N
B
...
Acquired by activating immune system of the body
'Pathogens' are ____________
ER
TM
,P
A
...
B
...
C
...
D
...
Rickets
B
...
Diabetes
D
...
Health is the state of body and mind in a balanced condition
...
Health is the reflection of a smiling face
...
Health is a state of complete physical, mental and social well-being
...
Health is the symbol of economic prosperity
...
Fungus
B
...
Bacterium
D
...
Pneumonia
B
...
Typhoid
D
...
A
...
Connective tissue
D
...
Transposon
U
B
...
Tumour promoter gene
ER
TM
,P
D
...
Bone
antiviral proteins released by cells infected by the virus are called ________
A
...
interferons
C
...
allergens
VERY SHORT ANSWER TYPE QUESTIONS (1 MARK EACH)
1
2
3
What are Non-communicable diseases?
Name the causative pathogen of Ascariasis
...
5
Name the vector of malarial pathogen
...
8
When a drug addict is not allowed to take drugs he shows certain typical
symptoms
...
35
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
1
Enlist the four types of T- lymphocytes, responsible for immune response of our
body
2
Enlist any four barriers that contribute to innate immunity
...
4
Give any four the symptoms of Ascariasis
...
6
Enlist any two features of Acquired immunity
...
a) Identify the disease the patient is suffering from
...
N
1
E
SHORT ANSWER TYPE QUESTIONS(SA-II) (3 MARKS)
c) Mention the cells of the body that are attacked by the pathogen
...
ER
TM
,P
2
Explain any three causes of substance abuse during adolescence
...
Give the preventive measures of AIDS
a) How is a tumor formed in the body?
b) What are the two types of tumor?
c) Which of these under goes metastasis?
7
Explain the mode of transmission of HIV
...
2
Explain the clinical manifestation of AIDS
...
SC
1
36
11
...
A protein
B vitamin
C carbohydrates
D Fats
Species of ___ is involved in cheese formation
...
A Invertase
B Pectinase
C Lipase
D Cellulase
Select the odd one from given herbicides
...
A Anabaena
B Nostoc
C Plectonema
D Oscillatoria
Antibiotic Chloromycetin is obtained from ____________
...
A Lactobacillus acidophilus
B Lactobacillus bulgaricus
C Penicillium roquefortii
D Penicillium camembertii
Which of the following is not the variety of rice?
A
...
Padma
C
...
Parbhani- Kranti
Identify the variety of crop plant developed for resistance against black rot,
A
...
Pusa Shubhra
C
...
E
11
D
...
Worker bee
B
...
Queen bee
D
...
Mango
B
...
Mulberry
D
...
Common carp
B
...
Silver carp
D
...
What is the main function of a fermenter?
Name the chamber in which the suspended objects are filtered and removed
during sewage treatment?
What is mycorrhiza?
Name the tank to which the sewage water is passed after the preliminary
treatment?
What are flocs with respect to sewage treatment
Small part of activated sludge is passed back into primary sedimentation tank
...
When was plant breeding started?
Define germplasm collection
...
What is explant?
What is MOET?
Aspergillosis and Favus are poultry diseases
...
What is the biological name of little bee?
ER
TM
,P
1
2
3
4
N
VERY SHORT ANSWER TYPE QUESTIONS (1 MARK EACH )
16
17
18
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
1
2
Rearrange the names of tanks used in sewage treatment as per the flow of
procedure
...
Give names of two organisations which provide most commonly used models of
biogas plants
...
Name two acids produced by using Aspergillus niger?
Name two amino acids found in fortified Maize variety?
Explain plant breeding for disease resistance with suitable examples
...
Enlist various steps involved in hybridization technique in sequence
...
SCP is useful and is a source of protein
...
Give an account of dairy farm management
...
Give an account of lac culture
...
Her dietician advised her to include mushrooms
in her diet
...
A
B
i
...
Rice
b) vit C
iii
...
bitter gourd
d)Iron
U
3
1
2
3
4
5
6
Match the column A with B and rewrite correct pairs
A
B
I
...
Bacterial herbicides
b) Alternaria
III
...
Write chemical reactions to represent Methanogenesis
...
State any three benefits of mycorrhiza
...
Match the column A with B and rewrite correct pairs
...
Write an account of mutation breeding
...
39
LONG ANSWER TYPE QUESTIONS (LA) ( 4 MARKS EACH)
3
A
B
a)Penicillium roquefortii
i)Alcohol
b)Lactobacillus bulgaricus
...
Match the column A with B and rewrite correct pairs
...
Mention any three objectives of plant breeding
...
SC
4
5
B
a) VAM
b)Rhizobium
c) Nostoc
d) Microccocus
U
i
...
iii
...
A
Symbiotic N2 fixing bacteria
Free-living N2 fixing bacteria
Phosphate solubilizer
Endomycorrhizae
E
2
Match the column A with B and rewrite correct pairs
...
BIOTECHNOLOGY
MULTIPLE CHOICE QUESTIONS ( 1 MARK EACH)
1
5
SC
7
U
4
ER
TM
,P
3
N
E
2
The technique which involves addition or deletion of genes is…
...
A Agrobacterium rhizogenes
B Escherichia coli
C Agrobacterium T20
D Agrobacterium tumefaciens
Polymerase chain reaction is most useful in…
...
A bold cotton
B Bacillus thuringiensis
C beta carotene
D tumor inducing bacteria
In transgenic crop substance provitamin A is obtained in…
...
is produced by r-DNA technology
...
A generation mediated organisms
B genetically modified organisms
C good modified organisms
D gross modified organisms
First biopatent to genetically engineered bacterium…
...
coli
...
What is Germline therapy?
Which Recombinant proteins is obtained for Hepatitis-B by r-DNA technology
...
How Biotechnology is applicable with respect to Genomics?
Explain how transgenic fish is commercially beneficial
...
Explain this any one
example
...
Define vector? write any two examples
...
Define biotechnology? Which are the basic principles and process of
biotechnology?
What is gene cloning? Explain different tools used for it
...
Define Biotechnology? How it is used in production of Human insulin
...
LONG ANSWER TYPE QUESTIONS (LA) (4 MARKS)
1
2
3
4
5
What is PCR? Explain different steps involved in it
...
Give any three application of it?
Which are different adverse effect of biotechnology on human health and
environment?
Explain biopatent and Biopiracy with different examples?
42
13
...
B population
...
D tropical niche
...
A Group of similar Angiosperms
...
C interacting ecosystem
D group of mangroves
...
A tropical evergreen forest
...
C coniferous forest
...
B Parasitism
...
D Competition
The ecological niche of population is a …
A geographical area where it lives
...
C habitat of organisms
D place of origin of organisms
Tropical dense forests are due to…
A high rainfall and low temperature
B high rainfall and warm temperature
C low rainfall and high temperature
D low rainfall and low temperature
Polar bears show hibernation during…
A winter
B summer
C rainy season
D favourable conditions
In Logistic growth curve lag phase shows…
A fast growth
B initial stage of growth
C stationary phase of growth
D diminishing phase of growth
7
8
9
43
10
The number of deaths under ideal conditions is known as
A Absolute mortality B Realized mortality
C Absolute natality
D Realized natality
VERY SHORT ANSWER TYPE QUESTIONS ( 1 MARK EACH)
2
3
4
5
6
7
E
N
1
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
Show the graphical representation of mean annual rainfall with respect to
mean annual temperature
...
How Habitat differs from Niche?
How ‘Temperature’ as an abiotic factor plays a role in ecology?
Define the term Adaptation
...
What is Mortality? What are its two types?
Define the term population interactions
...
How absolute Natality differs from Realized Natality
...
What is ESS?
Define the term Habitat
...
Define mutualism
...
Explain any three important characteristics of population
...
What is Commensalism? Explain it with suitable example
...
Explain different types of growth models
...
Explain different types of age pyramids
...
44
14
...
A
...
pioneer species
C
...
secondary succession
U
B
...
climax species
ER
TM
,P
D
...
secondary succession
All types of ecological succession whether on land or in water always reaches _
A
...
pioneer species
C
...
secondary succession
4
Secondary consumers are
A
...
producers
C
...
autotrophs
5
Which of the following statements is incorrect for the energy pyramid?
A
...
Its base is broad
C
...
It is always upright
...
energy flow
B
...
productivity
D
...
Humus is
A
...
contains only cellulose
C
...
product of photosynthesis
N
What is ‘Sere’?
Define ‘Ecological succession’
What is ‘Climax community’?
Define zonation
...
What do you understand by the term PAR?
What is 10% law of energy transfer?
What is the reservoir of carbon on the earth?
What is the cause of eutrophication?
What is fragmentation?
U
1
2
3
4
5
6
7
8
9
10
E
VERY SHORT ANSWER TYPE QUESTIONS(1 MARK EACH)
1
2
3
4
5
6
7
Name the types of succession of plants based on the nature of habitat
...
Explain grazing food chain with suitable example
...
Give reasons, ’ pyramid of energy is always upright
...
SHORT ANSWER TYPE QUESTIONS(SA-II) (3 MARKS)
What are ‘pioneer species’? Give two examples of them
...
SC
1
2
ER
TM
,P
SHORT ANSWER TYPE QUESTIONS(SA-I) (2 MARKS)
3
4
5
Explain process of decomposition in detail
...
Describe the sedimentary cycle you have studied
...
15
...
A habitat loss
B hunting
C Alien species invasion
D overexploitation
...
A Pawra tribals in Satpuda have protected varieties of corn with different
coloured kernels
...
C Crocodile bank of Chennai
D Sacred groves
India boasts a handsome share of ____ % of total biodiversity wealth of the
earth
...
4
B 8
...
biogas generation
B
...
Biosynthesis pathway
D
...
Oxides of nitrogen
B
...
CO
D
...
coli is used as an indicator to determine pollution of water with
A
...
faecal matter
C
...
Pollen of aquatic plants
Which of the following is not the component of greenhouse gases?
A
...
carbon dioxide
C
...
ozone
7
...
A medicinal plant Rauwolfia vomitoria shows variations in concentration of
reserpine from location to location
...
With the help of any one example explain Alien species invasion as one of the
causes of Biodiversity losses
...
Explain working of electrostatic precipitator
...
Write a note on global warming
...
Draw a flow chart showing eutrophication
...
The reasons for conservation of biodiversity can be classified into three
categories
...
Write an account of global warming
Title: IMPORTANT questions
Description: Important questions of biology help you to score more in exam
Description: Important questions of biology help you to score more in exam