Question

Bulliform cells are responsible for

• A. Inward curling of leaves in monocots
• B. Protecting the plant from salt stress
• C. Increased photosynthesis in monocots
• D. Providing large spaces for storage of sugars

Answer 1

The Correct Option is A

Bulliform cells are specialized cells found in the leaves of monocot plants, primarily grasses. These cells play a crucial role in the regulation of water loss and leaf movement. Here's a detailed explanation of how they function:

1. Location: Bulliform cells are located on the upper epidermis of the leaves, usually in groups.
2. Water Retention: These cells are large and have a high capacity to store water. When hydrated, they remain turgid.
3. Leaf Movements: During periods of water stress or high temperatures, bulliform cells lose turgidity due to water loss. This causes the leaf to fold or curl inwards, minimizing surface area and reducing water loss through transpiration.
4. Role in Monocots: In monocots, such inward curling is a crucial adaptation for survival in dry conditions, as it helps conserve water.

Given the options provided, the statement that bulliform cells are responsible for the "Inward curling of leaves in monocots" is accurate. The other options do not align with the primary function of bulliform cells:

Option	Analysis
Protecting the plant from salt stress	This is not a recognized function of bulliform cells.
Increased photosynthesis in monocots	While these cells aid in water conservation, they do not directly impact photosynthesis rates.
Providing large spaces for storage of sugars	Bulliform cells do not serve as storage spaces for sugars.