Which structural feature of guard cells facilitates their function in stomatal regulation MOST effectively?
Uniformly thickened cell walls.
Radially oriented cellulose microfibrils in the cell walls.
Large central vacuole for water storage.
Presence of chloroplasts for photosynthesis.
Related Questions
Petiole
Helps to hold the leaf blade
Allows leaf blades to flutter wind
Helps in cooling the leaf
All of the above
Pulvinus leaf base is commonly found in the leaves of
Xerophytes
Grasses
Legumes
Monocots
A student collected a hydrophyte with swollen petiole and with a single vascular bundle in the root. The plant which he collected., was
Jussiaea
Trapa
Ceratophyllum
Potamogeton
The reticulate venation is commonly found in the leaves of
Monocot plants
Dicot plants
Bryophytes
Thallophytes
The number of stomata present per of a leaf is
1000
Less than 100
One million
None of these
Multicostate parallel type of venation is found in the leaves of
Grass and palms
Banana and Canna
Castor and China rose
Mango and peepal
Structure of leaf which provide channels of transport for water, minerals and food materials is called
Midrib
Margin
Lamina
Veins
Pulvinus leaf base is commonly found in the leaves of
Xerophytes
Grasses
Legumes
Monocots
Leaf having single or undivided lamina is called
Compound leaf
Simple leaf
Either (a) or (b)
General leaf
Leaves of dicotyledon plants generally exhibits
Oblique venation
Lateral venation
Reticulate venation
Parallel venation
