CBSE
Multiple Choice QuestionsIn C4 plants, CO2 combines with
phosphoglyceric acid
ribulose diphosphate
phosphoenol pyruvate
phosphoglyceraldehyde
Stomatal opening in plants occurs due to influx of
Na
K
ABA
Auxins
In CAM plants
stomata open in day and close at night
stomata remain open in day and night both
stomata remain closed in day and night both
stomata open at night and close in day
Photorespiration is favoured by
high O2 and low CO2
high CO2 and low O2
high temperature and low O2
high humidity and temperature
In Hatch and Slack pathway
chloroplast are of same type
occurs in Kranz anatomy where mesophyll have small chloroplast whereas bundle sheath have granal chloroplast
occurs in Kranz anatomy when mesophyll have small chloroplast where as bundle sheath have larger, agranal chloroplast
Kranz anatomy where mesophyll cells are diffused
Energy transfer in photosynthesis occurs as
Phycoerythrin Phycocyanin Carotenoid Chlorophyll a
Chlorophyll b Carotenoid Phycoerythrin Chlorophyll a
Phycocyanin Phycoerythrin Carotenoid Chlorophyll a
Chlorophyll b Carotenoid Phycocyanin Chlorophyll a
The form of pigment which inhibits germination is
P760
P730
P650
All of these
In photosynthesis what occurs in PS-II?
It takes longer wavelength of light and e- from H2O
It takes shorter wavelength of light and e- from H2O
It takes longer wavelength of light and e- from NADP
It takes shorter wavelength of light and e- from NADP
The thylakoid in chloroplast are arranged as
interconnected disc
interconnected sacs
stacked discs
none of the above
In Hatch and Slack type plants CO2 acceptor is
malate
pyruvate
phosphoenol pyruvate
aspartate
