Question

1 biology epidermal cells are often modified to perform specialized functions in plants. Name some of them and function they perform.

Answer 1

Hi dr.....

HERE IS UR ANSWER:

•Root hairs: The root hairs are unicellular elongations of the epidermal cells and help absorb water and minerals from the soil.

• Stem hairs or trichomes: On the stem the epidermal hairs are called trichomes. The trichomes in the shoot system are usually multicellular.

They may be branched or unbranched and soft or stiff. They may even be secretory. The trichomes help in preventing water loss due to transpiration.

• Bulliform cells: In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called

bulliform cells. When the bulliform cells in the leaves have absorbed water and are turgid, the leaf surface is exposed. When they are flaccid due to water stress, they make the leaves curl inwards to minimise water loss.

HOPE THIS HELPS...

@harsha

Answer 2

Answer:

hey mate here is your answer...

Explanation:

➡️ Roots Hair - They take part in absorption of water and minerals from capillary pores.

➡️ Stem hair - They form a stationary layer of air to reduce transportation and moderate insolation.

➡️ Cuticle - Reduces transpiration and provide stiffness to epidermis.

➡️ Stomata - They control gaseous exchange and transpiration.

➡️ Specialised hair - Glandular hair produces secretion like aroma, digestive enzymes, irrtants etc.

➡️ Prickles - Protection from grazing.

Hope it helps!!☺️