Which of the following is not the lateral branches of the roots?
1. Tertiary roots
2. Secondary roots
3. Primary roots
4. Both 1 and 2
Roots developed from parts of the plant other than radicles are called
1. tap roots
2. fibrous roots
3. adventitious roots
4. nodular roots
The cells of which of the following regions of the root are responsible for growth of its length?
1. Root cap
2. Region of meristematic activity
3. Region of elongation
4. Region of maturation
Identify the correct statement regarding the stem morphology from the following:
I: | Stems bear only axillary buds. |
II: | Axillary buds may get modified into thorns as in Citrus |
III: | Stem tendrils develop from axillary buds as in gourds. |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
The region responsible for growth in the length of the root is:
1. A
2. B
3. C
4. D
Consider the following statements:
I: | The roots hair are unicellular and arise from the region of maturation. |
II: | Terminal buds of stems may get modified to thorns. |
III: | Leaves originate from shoot apical meristem and are arranged in an acropetal order. |
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
Root hairs develop from the region of
(1) maturation
(2) elongation
(3) root cap
(4) meristematic activity
The region of part of root that increases the surface area for water absorption is
1. Root cap
2. Zone of elongation
3. Meristematic zone
4. Root hair
Underground modification of stem occurs for following special functions, except
1. Storage of food
2. Vegetative propagation
3. Assimilation
4. Perennation
Photosynthetic organ originates from _______ meristem and arranged in _______ order.
1. Lateral, basipetal
2. Root apical, acropetal
3. Shoot apical, acropetal
4. Intercalary, acropetal