Assertion Reason Test: Photosynthesis In Higher Plants

10 Questions MCQ Test Additional Documents & Tests for NEET | Assertion Reason Test: Photosynthesis In Higher Plants

Attempt Assertion Reason Test: Photosynthesis In Higher Plants | 10 questions in 10 minutes | Mock test for NEET preparation | Free important questions MCQ to study Additional Documents & Tests for NEET for NEET Exam | Download free PDF with solutions

A : In C4 plants, chloroplasts of bundle sheath cells are granal.

R : PS II is mostly found in the appressed part of granum.

Solution: In Bundle sheath cells PS II absent which implies agranal chloroplast. 


A : Dark reactions of photosynthesis are temperature controlled processes.

R : Most of the reactions are enzymatic in nature.

Solution: Enzyme reactions are controlled by temperature.


A : Dark acidification occurs in CAM plants.

R : Organic acids are decarboxylated during night.

Solution: Dark acidification is reaction occurs in Night and organic acid like malic acid is decarboxylated during day.


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

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


ATP produced is required for carrying out different metabolic activities, biosynthetic reaction taking place in stroma, responsible for fixation of CO2 and synthesis of sugar. 


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

R : They transfer e– to reaction centre.

Solution: Antenna molecules transfer electron 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.

Solution: Cyclic photophosphorylation is needed to meet difference in number of ATP, but no correlation with Ist statement.


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.

Solution: Carotenoids provide protection to chlorophyll from nascent oxygen.


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.

Solution: Dark reaction is not depend directly on the light. ATP and NADPH is essential for CO2 fixation. 


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.

Solution: Action spectrum depicts the magnitude of a response of biological system to light as function of wavelength.

For e.g., - action spectrum of photosynthesis can be constructed from measurements of O2 evolution at different wavelengths. 


A : Tropical plants are more efficient in CO2 utilization.

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

Solution: At high CO2 concentration RuBisCO enzyme acts as carboxylase enzyme.
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