Important Questions on Photosynthesis in Higher Plants

These Important Questions on Photosynthesis in Higher Plants 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.

Important Questions on Photosynthesis in Higher Plants pdf Download

1 Photorespiration involves oxidation of
(B) RuBP
(C) Chlorophyll a
(D) Both a and b

2 C3 and C4 plants differ with respect to
(A) Number of ATP molecules consumed
(B) First product
(C) The substrate which accepts carbon dioxide
(D) All

Answer: All
3 In Calvin cycle, 1 molecule of glucose is formed from
(A) 6CO2 + 30ATP + 12NADPH
(B) 6CO2 + 12ATP
(C) 6CO2 + 18ATP + 12NADPH
(D) 6CO2 + 18ATP + 30NADPH

Answer: 6CO2 + 18ATP + 12NADPH
4 Where does the light reaction takes place?
(A) Grana
(B) Stroma
(C) Cytoplasm
(D) Endoplasmic reticulum

5 Electrons from the excited chlorophyll molecules of PS-II are first accepted by
(A) Pheophytin
(B) Ferredoxin
(C) Cytochrome f
(D) Cytochrome b

6 Non-cyclic photophosphorylation results in the production of

Answer: ATP and NADPH
7 DCMU inhibits
(A) PS-I
(C) Oxidative phosphorylation
(D) It destroys chloroplast

Answer: PS-II
8 Maximum photosynthesis occurs in
(A) Blue light
(B) Red light
(C) White light
(D) Green light

Answer:Red light
9 The first acceptor of CO2 in C4 plants is
(A) Aspartic acid
(B) Malic acid
(C) Oxaloacetic acid
(D) Phosphoenolpyruvate

Answer: Phosphoenolpyruvate
10 The first product of C4 pathway is
(C) Oxaloacetate
(D) Phosphoenolpyruvate

Answer: Oxaloacetate

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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