Notesale: Turn your study into money

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above

---

The Living World 1

Points to Remember
1
...

2
...

3
...

Reproduction and growth are NOT de®ning properties
...

Living organisms are self-replicating, evolving and self-regulating
interactive and systems capable of responding to external stimuli
...
Biodiversity : Term used to refer to the variety of microorganisms, plant
and animals on earth
...
Need for classification : To organise the vast number of microorganisms,
plants and animals into categories that could be named, remembered, studied
and understood
...
Three Domains of Life : Proposed by Carl Woese in 1990 who also proposed
the six kingdom classi®cation for living organisms
...

1 Kingdom
Archaea 1
...
Eutacteria
of life 3
Eukarya 3
...
Fungi
5
...
Animalia
2 Biology Class - 11

7
...

8
...
Terms was proposed by Carolus
Linnaeus who wrote ‘Systema Naturae’
...
Concept of Species : All the members that can interbreed among themselves
and can produce fertile offsprings are the members of same species
...

10
...
e
...

11
...

Kingdom

Phylum /Division

Class

Order

Family

Genus

Species
...
Binomial Nomenclature : Given by Carolus Linnaeus
...

13
...
)
14
...
)
15
...

First word is genus, second word is species name
...

First word starts with capital letter while species name written in small
letter
...
Scientific names of some organisms :
Man
...
Musca domestica
Mango
...
Triticum aestivum
17
...

18
...

19
...

20
...

The Living World 3

21
...

Example : Royal Batanical garden Kew (England), National Botanical
Research Institute (Lucknow), Indian Botanical Garden Howrah
...
Keys (Used for indenti®cation of plants and animals on the basis of similarities
and dissimilarities
...
Couplet are the two alternate characteristic statement used in key to identify
organisation
...
Each Statement of the key is called a lead
...
Flora (Index to plant species found in a particular area
...
Manuals (Provide information for identi®cation of name of species in an
area
...
Mongoraphs (Contain information on any one taxon
...
De®ne species
...
What is systematics ?
3
...


Short Answer Question-I (2 marks each)
4
...
Why growth and reproduction cannot be taken as de®ning property of all
living organisms ?
6
...
taxa) de®ned ?

Short Answer Question-II (3 marks each)

7
...
Keys are analytical in nat ure and are helpful in identi®cation and classi®cation
of organisms
...
De®ne : (a) Genus (b) Family (c) Order

Long Answer Questions (5 marks each)

10
...
Linn
...
Illustrate taxonomical hierarchy with suitable examples from plant and animal
species
...
De®ne classi®cation
...
Members that can interbreed to produce fertile offspring
...
Systematic arrangement which also takes into account evolutionary
relationships between organisms
...
Kew (England) and National Botaiucal Research Institute (Lucknow), Indian
Botanical Garden (Howrah)
...
External and internal structure, structure of cell, development process and
ecological information
...
Non-living things can also increase in mass by accumulation of material
on surface (accretion
...
g
...
)
6
...


Short Answers-II (3 marks each)

7
...

Herbarium : Collection of dried, pressed and prerserved plant specimens on
sheets
...
Key is a list of alternate characters arranged in such a manner that by
acceptance and rejection one can easily identify an organisms as to its name
and position
...

9
...

The Living World 5

Long Answers (5 marks each)
10
...
7, NCERT, Text Book of Biology for Class XI
...
Linn
...


11
...
1, page no
...

12
...

Signi®cance :
...

Refer
...
for six kingdom classi®cation in three domains
of life

---