- 1(current)
Q. No.All the following regarding parenchyma tissue in plants are correct except:
1. Cells are generally isodiametric
2. Cell walls are generally thick
3. Cell walls are made of cellulose
4. They perform photosynthesis, storage and secretion
Match each item in Column I with one in Column II and choose your answer from the codes given below:
|
COLUMN I |
COLUMN II |
|
A. Parenchyma |
a. Mechanical support to young stem and petiole |
|
B. Collenchyma |
b. Thin cellulosic cell walls |
|
C. Sclerenchyma fibers |
c. Thickened dead cells with very narrow cavities |
|
D. Sclereids |
d. Thick walled, elongated and pointed cells |
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | b | d | c | a |
| 4. | d | c | b | a |
Cuticle:
1. is a covering, both outside and inside of the epidermis
2. is well developed in roots
3. helps in prevention of water loss
4. is a proteinaceous layer
Consider the given two statements:
| I: | Parenchyma cells in plants play an important role in regeneration and wound healing. |
| II: | They are living at maturity and usually have only primary walls. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is True but II is False
4. Both I and II are False
Match the following and choose the correct option from below:
|
A. Meristem |
i. Photosynthesis, storage |
|
B. Parenchyma |
ii. Mechanical support |
|
C. Collenchyma |
iii. Actively dividing cells |
|
D. Sclerenchyma |
iv. Stomata |
|
E. Epidermal tissue |
v. Sclereids |
Options:
| A | B | C | D | E | |
|
1. |
i |
iii |
v |
ii |
iv |
|
2. |
iii |
i |
ii |
v |
iv |
|
3. |
ii |
iv |
v |
i |
iii |
|
4. |
v |
iv |
iii |
ii |
i |
- 1(current)
Q. No.
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