NEET Botany - MCQ Practice Questions

The rate of photosynthesis is maximum at which wavelength of light?

Which pigment is responsible for absorbing light energy in photosystem II?

In C4 plants, the first stable compound formed during photosynthesis is:

Which of the following statements about transpiration is correct?

The opening and closing of stomata is primarily regulated by:

Which of the following is a consequence of excessive transpiration?

The Casparian strip is found in which region of the root?

Root pressure is primarily responsible for:

The compensation point of a plant is the light intensity at which:

CAM plants open their stomata primarily at:

Which of the following stomatal movements is primarily controlled by turgor pressure changes in guard cells?

The phenomenon where plants exhibit different photosynthetic rates at different light intensities until a plateau is reached is called:

During active transport, which of the following statements is NOT correct?

Which of the following best explains why the guttation process occurs in plants during early morning?

Which of the following processes does NOT contribute to water transport in xylem?

A plant shows wilting despite soil having adequate water. This could be due to:

The phenomenon where a plant loses its leaves in response to water shortage is controlled by which hormone?

The phenomenon where stomata open partially to balance water loss and photosynthesis is called:

Which of the following best describes the role of plasmodesmata in plant physiology?

The compensation point in photosynthesis is defined as the light intensity at which: