NEET Botany Photosynthesis in Higher Plants MCQs

A scientist isolates chloroplasts and provides them with $^{14}CO_2$ in the dark. After a brief period, the $^{14}C$ is found predominantly in:

If a plant is exposed to $^{14}CO_2$ in the dark and then transferred to light, the $^{14}C$ label will appear first in which of the following carbohydrates?

Which enzyme in the Calvin cycle is directly responsible for incorporating CO2 into an organic molecule?

Under conditions of high light intensity and limited CO2 availability, which process is most likely to be favored in chloroplasts?

In C4 plants, the initial carboxylation reaction occurs in:

The primary function of the dark phase of photosynthesis is to:

How many molecules of CO2 are required to produce one molecule of glucose (C6H12O6) in the Calvin cycle?

The first stable product formed after CO2 fixation in the C3 cycle is:

How many molecules of $CO_2$ are required to produce one molecule of glucose in the Calvin cycle?

If a plant is placed in an environment with very low carbon dioxide concentration, which aspect of photosynthesis would be MOST directly affected?