MCQ on light reaction of photosynthesis

These MCQ on light reaction of photosynthesis focuses on the anatomy of the photosynthetic hardware and the different responses that change light energy into chemical energy. Let us discuss about some important Photosynthesis in Higher Plants MCQs and Answers.

Mcq on light reaction of photosynthesis pdf Download

1 Which of the following statements is/are correct related to Dark Reaction:
I. The process involves fixation and reduction of carbon dioxide in the stroma of the chloroplast.
II. Light is necessary for the reaction.
III. It is also known as Calvin Cycle.
Options are:
(A) Both I and II are correct
(B) Both II and III are correct
(C) Both I and III are correct
(D) All I, II and III are correct

Answer:Both I and III are correct
2 What do you understand by NADP?
(A) It is an enzyme
(B) It is a co-enzyme
(C) A part of s-RNA
(D) A part of t-RNA

Answer:A part of s-RNA
3 Which of the following statements is/are correct about Light Reaction:
I. In this reaction light energy is absorbed by chlorophyll pigments and converted into chemical energy.
II. Energy is stored in the form of ATP
III. NADPH2 is generated
Options are:
(A) Both I and II are correct
(B) Both I and III are correct
(C) Only II is correct
(D) All I, II and III are correct

Answer: All I, II and III are correct
4 Photosynthesis is :
(A) An Oxidation-Reduction reaction
(B) Synthesis reaction
(C) Organic reaction
(D) Replacement reaction

Answer:An Oxidation-Reduction reaction
5 The process of taking in CO2 by plants and releasing O2 is termed as
(A) Transpiration
(B) Respiration
(C) Photosynthesis
(D) Endosmosis

Answer:Photosynthesis
6 How many turns of Calvin cycle yield one molecule of glucose?
(A) Eight
(B) Two
(C) Six
(D) Four

Answer: Six
7 The function of ATP in photosynthesis is the transfer of energy from the
(A) Dark reaction to the light reaction
(B) Light reaction to the dark reaction
(C) Chloroplasts to mitochondria
(D) Mitochondria to chloroplasts

Answer: Light reaction to the dark reaction
8 Which enzyme is most abundantly found on earth?
(A) Catalase
(B) Rubisco
(C) Nitrogenase
(D) Invertase

Answer:Rubisco
9 Photosynthesis is an oxidation reduction process, the materials that is oxidised is
(A) CO2
(B) NADP
(C) H2O
(D) PGA

Answer: H2O
10 Which one of the following is represented by Calvin cycle?
(A) Reductive carboxylation
(B) Oxidative carboxylation
(C) Photophosphorylation
(D) Oxidative phosphorylation

Answer: Reductive carboxylation

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Class 11 Biology Questions and AnswersClass 12 Biology Questions and Answers
Chapter 1: The Living WorldChapter 1: Reproduction in Organisms
Chapter 2: Biological ClassificationChapter 2: Sexual Reproduction in Flowering Plants
Chapter 3: Plant KingdomChapter 3: Human Reproduction
Chapter 4: Animal KingdomChapter 4: Reproductive Health
Chapter 5: Morphology of Flowering PlantsChapter 5: Principles of Inheritance and Variation
Chapter 6: Anatomy of Flowering PlantsChapter 6: Molecular Basis of Inheritance
Chapter 7: Structural Organisation in AnimalsChapter 7: Evolution
Chapter 8: Cell The Unit of LifeChapter 8: Human Health and Disease
Chapter 9: BiomoleculesChapter 9: Strategies for Enhancement in Food Production
Chapter 10: Cell Cycle and Cell DivisionChapter 10: Microbes in Human Welfare
Chapter 11: Transport in PlantsChapter 11: Biotechnology:Principles And Processes
Chapter 12: Mineral NutritionChapter 12: Biotechnology and its Applications
Chapter 13: Photosynthesis in Higher PlantsChapter 13: Organisms and Populations
Chapter 14: Respiration in PlantsChapter 14: Ecosystem
Chapter 15: Plant Growth and DevelopmentChapter 15: Biodiversity and Conservation
Chapter 16: Digestion and AbsorptionChapter 16: Environmental Issues
Chapter 17: Breathing and Exchange of Gases 
Chapter 18: Body Fluids and Circulation 
Chapter 19: Excretory Products and their Elimination 
Chapter 20: Locomotion and Movement 
Chapter 21: Neural Control and Coordination 
Chapter 22: Chemical Coordination and Integration 

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