NEET Botany - MCQ Practice Questions

During photosynthesis, the light-independent reactions occur in which compartment of the chloroplast?

Which element is essential for the synthesis of chlorophyll and is present at the center of the chlorophyll molecule?

Which of the following hormones primarily promotes stomatal closure in response to water stress?

In phloem transport, the source is typically the:

Which of the following is the primary pigment involved in capturing light energy during photosynthesis?

The rate of transpiration is LEAST affected by which of the following factors?

In C4 photosynthesis, the primary CO2 acceptor molecule is:

Which hormone is primarily responsible for closing stomata under water stress conditions?

A student observes that a plant kept in a completely dark room still shows some gas exchange. This can be attributed to:

During photosynthesis, the splitting of water molecules occurs in which compartment of the chloroplast?

In the Calvin cycle, which enzyme catalyzes the fixation of CO2?

The Q10 value for enzyme-catalyzed reactions is typically:

The grana in chloroplasts are composed of:

The phenomenon where plants lose water in liquid form through hydathodes is called:

Which of the following enzyme complexes in the thylakoid membrane is responsible for water splitting and oxygen evolution?

A desert plant maintains stomata closure during the day and opens them at night, fixing CO2 into malic acid. This adaptation is characteristic of which photosynthetic pathway?

Stomatal opening is primarily regulated by the accumulation of which osmotically active solute in guard cells?

Which of the following correctly describes the role of carotenoids in photosynthesis?

The photoperiodic response in plants (flowering) is primarily detected by which photoreceptor?

A variegated plant leaf shows white and green patches. Which organelle dysfunction is responsible for white patches?