Question

Different between trichrome and stomata

Answer 1

CLICK ON THE BRAINLIEST

Answer 2

Stomata:

Stomata (sing.-stoma) are very minute openings found in the epidermal layer of leaves, stem and other aerial parts of the plant. Each stoma remains surrounded by two kidney-shaped or bean-shaped cells called guard cells. Chloroplasts are always present in the guard cells. The inner wall of each guard cell is thicker while its outer wall is thinner. The epidermal cells bordering the guard cells are called subsidiary cells.

In the absence of light, i.e. at nights, the stomata remain closed. On the other hand in the presence of light, i.e. during daytime the stomata remain open. The closing and opening of stomata are due to the move­ment of guard cells.

Trichomes:

Some of the epidermal cells of axis, and other plant parts grow out in the form of trichomes or hair.

They show following characteristics:

1. These are the elongations or extensions of epider­mal cells.

2. They are found singly or in groups.

3. Trichomes may be unicellular or multicellular. Mor­phologically, root hair are typical hair.

4. They are highly variable in shape varying from small protuberances of epidermal cells to very complex, multicellular, branched or stellate structures.

5. Hair may consist of either living or dead cells.

6. Hair with living cells contain very little cytoplas in their cells.

7. They persist throughout the life of a plant part or may fall very soon.

8. Innumerable types of the hair are known, of which some are uniseriate hair, stinging hair, mucilage hair, etc.

9. Functions of trichomes include:

(i) control of transpiration rate,

(ii) reduction of heating effect of sunlight, and

(iii) protection of body.