- 1(current)
Q. No.All the following regarding collenchyma tissue in plants are correct except:
| 1. | It occurs below the epidermis of stem and leaves in most monocots |
| 2. | It is found either as a homogenous layer or in patches |
| 3. | Cells are much thickened at the corners |
| 4. | Intercellular spaces are absent |
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All the following regarding sclerenchyma tissue in plants are correct except:
1. Cells have thick lignified walls
2. Cells are usually dead and without protoplasts
3. It provides mechanical support to plant organs
4. It can assimilate food when it contains chloroplasts
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Match the plants with the parts where sclereids are commonly found in them:
|
Plants |
Parts |
|
A. Nuts |
a. Fruit walls |
|
B. Sapota |
b. Pulp of fruit |
|
C. Legumes |
c. Seed coat |
|
D. Tea |
d. Leaves |
Codes
| A | B | C | D | |
| 1. | a | b | c | d |
| 2. | b | a | d | c |
| 3. | b | d | c | a |
| 4. | d | c | b | a |
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A plant tissue, when stained, showed the presence of hemicellulose and pectin in cell wall of its cells. The tissue represents
1. Collenchyma
2. Sclerenchyma
3. Xylem
4. Meristem
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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 |
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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 |
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- 1(current)
Q. No.
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