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 |
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
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 |
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
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 |
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 |