Assertion Reason Test: Photosynthesis In Higher Plants - NEET MCQ

A : Assimilatory power in photosynthesis is generated in ETS occuring in thylakoid membrane.

R : They are needed for CO₂ reduction and RuBP regeneration.

A : Light harvesting complexes (LHC) on thylakoid membrane broaden the range of light absorption.

R : They transfer e– to reaction centre.

A : For every CO₂ molecule entering C₃ cycle, three molecules of ATP and two NADPH are required.

R : Cyclic photophosphorylation takes place to meet the difference in number of ATP.

A : Carotenoids protect plant from excessive heat and prevent photooxidation of chlorophyll.

R : Carotenoids enable a wider range of wavelength of incoming light to be utilised for photosynthesis.

A : Biosynthetic phase of photosynthesis depend directly on presence of light.

R : Both ATP and NADPH are not essential for assimilation of CO₂ to carbohydrates.

A : Most of the photosynthesis takes place in the blue and red region of spectrum.

R : Action spectrum shows the amount of energy of different wavelength of light absorbed by pigments.

A : Tropical plants are more efficient in CO₂ utilization.

R: C₃ plants ensure that RuBisCO functions as  carboxylase minimising oxygenase activity.