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
One of the following is called pitcher plant
Nepenthes
Aristolochia
Drosera
Utricularia
Uniparous, biparous and multiparous systems of branching are found respectively in
Mirabilis, Datura and vine
Saraca, Mirabilis and Euphorbia
Vine, Polyalthia and Saraca
Casuarina, Saraca and Croton
Pulvinus leaf base is commonly found in the leaves of
Xerophytes
Grasses
Legumes
Monocots
Empty glumes are
Petals
Bracts
Anthers
Carpels
The reticulate venation is commonly found in the leaves of
Monocot plants
Dicot plants
Bryophytes
Thallophytes
The tissue in a leaf where most photosynthesis occurs is called:
Epidermis
Xylem
Phloem
Mesophyll
Which tissue layer is responsible for the transport of organic materials synthesized in the leaf?
Xylem
Phloem
Palisade parenchyma
Spongy parenchyma
Which of the following is not an insectivorous plant?
Drosera
Nepenthes
Monotropa
Utricularia
A Vascular has 300 leaves. 15 % of these belong to mustard 20 % to Calotropis 10 % Guava, 15 % to sunflower and the remaining to Alstonia, if 6 leaves are present at each node of alstonia. Then what is the total number of nodes seen in various twigs present in vasculum?
18
20
22
24
Petiole
Helps to hold the leaf blade
Allows leaf blades to flutter wind
Helps in cooling the leaf
All of the above
