#Question id: 10200
#Unit 6. System Physiology – Plant
Following are some facts regarding C3 and C4 Plants
a.) In C4 plants the reduction is caused by the additional energy requirements such as 1 ATP per CO2 from C3 plants
b.) C4 leaves are exposed to low O2 concentrations, the quantum yields for CO2 fixation remain constant while C3 leaves are exposed to low O2 concentrations quantum yield increases
c.) C3 leaves are exposed to low O2 concentrations, photorespiration is maximized
d.) Plant with the C4 metabolism need more rubisco than C3 plants to achieve a given rate of Photosynthesis
Which of the following combination would be correct?
#Question id: 4017
#Unit 3. Fundamental Processes
Which of the following sequences of events occurs when E. coli are released from catabolite repression by transfer to low-glucose medium?
#Question id: 2352
#Unit 2. Cellular Organization
The plasma membrane is ______
#Question id: 11838
#Unit 6. System Physiology – Plant
Which of the following ethylene receptors in Arabidopsis) have intrinsic histidine kinase activity, and this activity does not appear to play an essential role in signalling?
#Question id: 12097
#Unit 10. Ecological Principles
The herbaceous plant Achillea lanulosa is widespread in the Northern Hemisphere. Phenotypic variation in the species has been extensively studied along an altitudinal gradient from sea level to over 3,000 meters. In California there is conspicuous variation in height; alpine plants are only several centimeters tall while those in the San Joaquin Valley may reach a height of 1.8 meters. Adaptation to different local environments also results in variation in physiological processes such as photosynthetic rate, resistance to cold, and the timing of dormancy.
Which of the following methods would be best to determine whether the phenotypic variation in Achillea lanulosa is due to genotypic variation?