Question

In thin-leaves mesophytes, stomata open during the day and closes during the night. They belong to

• A. Barley type
• B. Potato type
• C. Alfalfa type
• D. Bean type

Answer 1

The correct option is C Alfalfa type

In accordance to daily movement of stomata, Von Mohl divided into some types like:

Barley type- Stomata open only for a few hours during the day and remain closed in the rest period. It is present in cereals.

Potato type- Stomata remain open throughout the day and night closing only during the period of water stress. Eg. Allium etc.

Alfalfa type- Stomata remain open throughout the day and close at night. Eg. Beans, Pea etc.

So the correct answer is 'Alfalfa type'.