Question

Which of the following point about root hairs or trichomes is not correct?

• A. Trichomes are epidermal hairs present on aerial parts of the plant while root hairs are present in the root
• B. Trichomes absorb water from the atmosphere while root hairs from soil
• C. Trichomes are usually multicellular while root hairs are unicellular
• D. Trichomes may be branched but root hairs are always unbranched

Answer 1

The correct option is B Trichomes absorb water from the atmosphere while root hairs from soil

The cells of epidermis bear a number of hairs. The root hairs are unicellular elongations of the root epidermal cells and help absorb water and minerals from the soil.
On the aerial parts of the plant, 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. Trichomes also function to shade the leaf for plants native to hot, arid climates.