Q. No.In stems:
1.
the primary xylem is endarch with protoxylem towards the center and metaxylem towards the periphery
2.
the primary xylem is endarch with metaxylem towards the center and protoxylem towards the periphery
3.
the primary xylem is exarch with protoxylem towards the center and metaxylem towards the periphery
4.
the primary xylem is exarch with metaxylem towards the center and protoxylem towards the periphery
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Root hairs are:
1. unicellular extensions of subsidiary cells
2. unicellular elongations of epidermal cells
3. unicellular elongations of ground tissue cells
4. appendages of the cuticle
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A transverse section of stem is stained first with safranin then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?
1. Red and green
2. Green and red
3. Orange and yellow
4. Purple and orange
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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Match the following and choose the correct option from below
|
A |
Cuticle |
i. |
Guard cells |
|
B |
Bulliform cells |
ii. |
Single layer |
|
C |
Stomata |
iii. |
Waxy layer |
|
D |
Epidermis |
iv. |
Empty colourless cell |
Options:
|
1. |
A-iii |
B-iv |
C-i |
D-ii |
|
2. |
A-i |
B-ii |
C-iii |
D-iv |
|
3. |
A-iii |
B-ii |
C-iv |
D-i |
|
4. |
A-iii |
B-ii |
C-i |
D-iv |
Identify the tissue system from among the following:
| 1. Parenchyma | 2. Xylem |
| 3. Epidermis | 4. Phloem |
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Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is
| 1. Xylem | 2. Sclerenchyma |
| 3. Collenchyma | 4. Epidermis |
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A conjoint and open vascular bundle will be observed in the transverse section of
| 1. | Monocot root | 2. | Monocot stem |
| 3. | Dicot root | 4. | Dicot stem |
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Interfascicular cambium and cork cambium are formed due to
1. Cell division
2. Cell differentitation
3. Cell dedifferentiation
4. Redifferentiation
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