Lateral Meristem

Q. Draw the diagram of a microsporangium and label its wall layers. Write briefly on the role of the endothecium.

Q.

What is axillary bud?

Q.

What is secondary meristem?

Q. Plants having little or no secondary growth are

1. grasses
2. deciduous angiosperms
3. conifers
4. cycads

Q.

Radial conduction of water takes place by

1. vessels and tracheids

2. ray parenchyma cells

3. vessels

4. phloem

Q.

If the tip of the sugarcane plant is removed from the field, even then it keeps on growing in length. It is due to the presence of:

1. Cambium

2. Apical meristem

3. Lateral meristem

4. Intercalary meristem

Q.

A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will

1. Move downwards

2. Move upwards

3. Remain at the same position

4. Move sideways

Q.

Do Tracheids have a nucleus?

Q.

The origin of cork cambium is from ________.

Q.

Is cork living or dead?

Q.

Girth of stem increases due to :

1. Apical meristem

2. Lateral meristem

3. Vertical meristem

4. Intercalary meristem

Q. Callus is

1. Plant hormone
2. Undifferentiated mass of cells
3. Root formation in culture media
4. Plant by product
   

Q. The lawn grass (Cynodon dactylon) needs to be mowed frequently to prevent its overgrowth. Which tissue is responsible for its rapid growth?

Q. What is the commercial source of cork? How is it formed in the plant?

Q.

Provide any one function of axillary buds.

Q. Assertion :Fascicular vascular cambium, interfascicular cambium and cork-cambium are examples of lateral meristems Reason: These are responsible for producing the secondary tissues.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q.

State the location and function of different types of meristem.

Q. How many shoot apical meristems are likely to be present in a twig of a plant possessing 4 branches and 26 leaves?

1. 5
2. 4
3. 26
4. 30
5. 1

Q. a) Both oxidative and photo-phosphorylation involve uphill transport of protons across the membrane.
b) In dicot stem, cambium originates from cells of pericycle.
c) Stamens of Gloriosa and Petunia are polyandrous.
d) Symbiotic nitrogen fixers also occur in free living state in soil.
How many of the above statements are correct?

1. One
2. Two
3. Three
4. Four

Q. Does the growth pattern in plants differ from that in animals? Do all parts of plant grow indefinitely? If not, name the regions of plant, which can grow indefinitely.

Q. Meroblastic cleavage is ______________ division

1. Spiral
2. Total
3. partial/parietal
   
4. horizontal
   

Q. The photoperiod in plants is perceived at

1. Floral buds
2. Flower
3. Meristem
4. Leaves

Q.

In grasses, the length of the internodes increases by the activity of ------------------------

1. Apical meristem

2. Intercalary meristem

3. Lateral meristem

4. Secondary meristem

Q.

what are rhizoids and what is their function?

Q.

Define the following.

Meristematic tissue

Q. Grafting is not successful in monocots but is successful in
dicots because they have

1. Vessels with elements arranged end to end
   
2. Cambium for secondary growth
   
3. Cork cambium
   
4. Vascular bundles arranged in a ring
   

Q.

Where is the cambium found on the vascular bundles in monocotyledons?

Q.

What is the function of intercalary meristem?

Q. Which one increases girth of stem or root?

1. Xylem
2. Cambium
3. Phloem
4. Cortex

Q.

Girth or width of the stem or root increases due to ________.