A plant exhibiting Kranz anatomy experiences a sudden drop in atmospheric CO2 levels. Which of the following is the MOST LIKELY immediate consequence on its photosynthetic efficiency?
Reduced initial fixation of CO2 by PEP carboxylase in mesophyll cells.
Increased oxygenation of RuBisCO in bundle sheath cells.
Immediate cessation of the Calvin cycle in bundle sheath cells.
Enhanced activity of photorespiration in mesophyll cells.
Related Questions
Empty glumes are
Petals
Bracts
Anthers
Carpels
The leaves of Smilax and Colocasia show
Parallel venation
Reticulate venation
Forward venation
Lateral venation
Which pair of the following plants represents the condition of modification of stipules into spines?
Euphorbia and Ziziphus
Citrus and Euphorbia
Ziziphus and Bougainvillea
Bougainvillea and Citrus
The bladder of Utricularia and pitchers of Nepenthes are modification of
Stems
Leaves
Roots
Flowers
Wringed petioles are characteristic of
Polygonum
Citrus
Neem
Banana
Insectivore plants such as pitcher plant, venus fly trap have
Modified leaf
Modified stem
Modified root
All of the above
Alternate phyllotaxy is found in
China rose
Mustard
Sunflower
All
Pattern of arrangement of leaves on the stem or branches is called
Phyllotaxy
Petiole
Stipule
Both (a) and (b)
The circinate vernation is the characteristic feature of ferns. It refers to
Coiling of young leaves
Arrangement of leaves on stem
Attachment of sori on leaves
Heterophily
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
