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NEET Questions / Botany / Anatomy of Flowering Plants / Monocot Leaf
Unlike dicot stomata which are kidney-shaped, grass stomata are:
Dumbbell-shaped
Circular
Irregular
Square
During periods of extreme dryness, the leaves of grasses often curl inwards. What is the primary reason for this adaptation?
To increase sunlight absorption
To protect against herbivores
To trap more carbon dioxide
To minimize water loss through transpiration
Which of the following best explains why grass leaves curl inwards under drought conditions?
Increased sunlight reflection
Enhanced carbon dioxide uptake
Protection from insect damage
Reduction of transpiration rate
The inward curling of leaves in grasses during dry periods is an example of:
A hydromorphic adaptation
A mesomorphic adaptation
A halomorphic adaptation
A xeromorphic adaptation
If a grass plant's leaves are observed to be curled inwards, what can be inferred about the environmental conditions?
The environment is excessively humid
The environment has high salinity
The environment is experiencing strong winds
The environment is likely dry or arid
How does the inward curling of leaves benefit grasses in arid environments?
Increases light absorption for photosynthesis
Improves nutrient uptake from the soil
Protects against herbivore grazing
Reduces water loss through transpiration
Bulliform cells in grasses are primarily responsible for:
Rolling and unrolling of leaves
Nutrient transport
Photosynthesis
Support and rigidity
The presence of bulliform cells on the upper epidermis of grass leaves allows for:
Increased photosynthetic rate
Enhanced nutrient absorption
Minimizing water loss during dry conditions
Providing structural support to the leaf
Under which environmental condition would bulliform cells be most likely to cause a grass leaf to roll inwards?
High humidity
Low light intensity
Cold temperatures
Hot, dry conditions
Amphistomatic leaf is
Dicotyledonous leaf
Monocotyledonous leaf
Both (a) and (b)
None of these
