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Chapter 6: “Tissues”
KEY CONCEPTS : [ *rating as per the significance of concept]
CONCEPTS
RATING
Meristems in plants

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Permanent tissues in plants

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Animal tissues

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1
...
Study of tissues is
called Histology
2
...

3
...

4
...
It is
found on those region of the plant which grows
...
Types of Meristems;
1
...

2
...

3
...

( Please refer to Fig
...
2: location of meristems in plant body , NCERT Book Page- 69)
...
Permanent tissues: Two types such as Simple permanent tissues & Complex
permanent tissues
...
They are loosly packed and has
large intracellular space
...

- The parenchyma with large air spaces to give buoyancy is
called as aerenchyma
...

(ii) Collenchyma: Tissue provides mechanical support, thickened at the corners, have
very little intercellular space
...
Cells of this tissue are dead and commonly seen in the husk of
coconut
...
Guard cells kidney shaped in dicots, dumb bell shaped in monocots to guard the
stomata
...
The
epidermal tissues in desert plants have a thick waxy coating of Cutin with waterproof
quality
...

(Please refer to Fig
...
3- 6
...

b) Complex permanent tissues: The complex tissues are made of more than one type
of cells
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They are subdivided as;
Xylem: It consists of tracheids, vessels, xylem parenchyma and xylem fibers
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Phloem: It consists of sieve tubes, companion cells, phloem parenchyma, and phloem fibers
...

(Please refer to Fig
...
7, NCERT Book Page-73)
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Animal tissues: Sub divided as epithelial tissue, connective tissue, muscular tissue
and nervous tissue
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Epithelial tissue: It is a protective covering forming a continuous sheet
...

66

Depending on shape and function they are classified as:
a) Squamous epithelium in the lining of mouth and esophagus
...

c) Columnar epithelium in the intestine &Columnar epithelium with cilia in the
lining of respiratory tract
...

(Please refer to Fig
...
9, NCERT Book Page-75)
...
Blood plasma has RBCs (Red Blood
Cells) WBCs (White Blood Cells) and platelets
...
Blood flows and transports gases, digested food, hormones and waste materials
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A bone is connected by another bone with another connective tissue called
ligaments
...

c) Cartilage: The cartilage is a connective tissue with solid matrix composed of
proteins and sugars
...

d) Areolar Connective Tissue: It is found between the skin and muscles, around
the blood vessels
...

e)Adipose Connective Tissue: It is filled with fat globules for the storage of fat
...
(Please refer to Fig
...
10, NCERT Book Page-76)
...
Three
types, such as;
Striated muscles/skeletal muscles/voluntary muscles :
They are cylindrical, un-branched and multinucleated
...

Unstriated muscles/smooth muscles/involuntary muscles:
They are commonly called as Smooth muscles, having no striations (dark bands/ light bands
are absent)
...
They are spindle
shaped
...
Involuntary in nature
...
6
...

Nervous Tissue: The tissue responds to stimuli
...
A neuron consists of Cell Body, cytoplasm, Nucleus,
Dendrite, Axon, nerve ending
...
(Please refer to Fig
...
12, NCERT Book Page-78)
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Define the term tissue……………
...
What is Histology? ( Study of different tissues)
3
...
Name the Parenchyma with chlorophyll which performs photosynthesis…………………
(chlorenchyma)
5
...
( Sclerenchyma)
6
...
(For protection and exchange of gases
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The epidermal tissues of roots aid in absorption of water and minerals
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Which elements constitute the Phloem? (Sieve tubes, companion cells, phloem
parenchyma, and phloem fibers
...
Distinguish between ligament and tendon (A bone to bone connective tissue called
ligament
...
)
9
...
(Striated muscles ,Un- Striated
muscles, Cardiac Muscles)
10
...
6
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68

QUESTION PAPER: FORMATIVE ASSESSMENT – I (For Practice)
Marks- 40

Time: 90 minutes

* General Instructions
1
...
Questions 6-10 ( 2 Mark each)

3
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Questions 16-17 (5Mark each)

Q
...
2 Which is the hardest connective tissue?
Q
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4 By what process permanent tissues are formed?
Q
...
Mention True/ False……………
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6 What are the two main types of tissues found in plants?
Q
...

Q
...
9 What are the fluid connective tissues?
Q
...
11 Write a short notes on Cardiac muscles
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12 Draw a labeled diagram of areolar tissue
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13 Mention the three elements of Xylem tissue
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14
...

Q
...
Write three significant points about Sclerenchyma
Q
...

Q
...
Explain in brief

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