(i) | Epidermal cells have a lower number of chloroplasts or lack them completely, except for the guard cells. |
(ii) | Epidermis is mostly single-layered except in the leaves of Ficus and Peperomia. |
(iii) | Epidermis lack intercellular spaces. |
(iv) | Root epidermis lack cuticle. |
(v) | In plants with secondary growth, the epidermis of roots and stems is usually replaced by a periderm through the action of cork cambium or phellogen. |
Column-I | Column-II | ||
A. | Bean shaped guard cell | (i) | Dicot stem |
B. | Dumb-bell shaped guard cell | (ii) | Monocot leaf |
C. | Trichome | (iii) | Dicot leaf |
D. | Exarch xylem | (iv) | Dicot and monocot root |
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 |