Advertisements
Advertisements
Question
Which cell does not have perforated cell wall?
Options
Tracheids
Companion cells
Sieve tubes
Vessels
Advertisements
Solution
Companion cells
Explanation -
Companion cells are narrow, elongated, thin-walled, living cells. They lie on the sides of the sieve tubes and are closely associated with them through plasmodesmata. Companion cells do not possess perforated cell walls.
APPEARS IN
RELATED QUESTIONS
Name the kind of tissue found in the walls of the veins of the leaves.
Write one word for the following:
Cells least specialized in plants.
Define the following:
Meristematic tissue
Parenchyma, collenchyma, Sclerenchyma are______ type of tissue.
State whether true or false. If false, correct the statement.
Vessels are found in collenchyma.
Refer to the given figure and select the correct statement.
- A, B, and C are histogen of shoot apex
- A Gives rise to medullary rays.
- B Gives rise to cortex
- C Gives rise to epidermis.
Girth of stem increases due to
Survival of plants in terrestrial environment has been made possible by the presence of
A meristematic tissue consists of ______.
Match List - I with List - II.
| List - I | List - II | ||
| (a) | Cells with active cell division capacity |
(i) | Vascular tissues |
| (b) | Tissue having all cells similar in structure and function |
(ii) | Meristematic tissue |
| (c) | Tissue having different types of cells |
(iii) | Sclereids |
| (d) | Dead cells with highly thickened walls and narrow lumen |
(iv) | Simple tissue |
Select the correct answer from the options given below.
