Photosynthesis MCQ with answers

These Photosynthesis MCQ with answers 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.

Photosynthesis MCQ with answers pdf Download

1 Oxygen containing carotenoids are
(A) Carotenes
(B) Xanthophylls
(C) Phycobilins
(D) Anthocyanins

Answer:Xanthophylls
2 Oxygen liberated during photosynthesis comes from
(A) CO2
(B) Glucose
(C) H2O
(D) Fructose

Answer: H2O
3 P700 is a special from of which pigment
(A) Chlorophyll-b
(B) Carotenes
(C) Chlorophyll-a
(D) Phycobilins

Answer: Chlorophyll-a
4 Path of dark reaction of photosynthesis was traced through the use of
(A) 32P
(B) 14CO2
(C) 18O2
(D) X-rays

Answer: 14CO2
5 In the calvin cycle, the assimilatory power is used during
(A) Formation of PGA
(B) Conversion of PGA to PGAL
(C) Formation of fructose 1-6 diphsophate from PGAL
(D) Formation of glucose from fructose – di- phosphate

Answer: Conversion of PGA to PGAL
6 Unidirectional flow of e- in non-cyclic photophosphorylation is
(A) PS II — e- —> PS I — e- —> NADP — e- —> water
(B) Water — e- —> PSII — e- —> PS I — e- —> NADP
(C) PS I — e- —> NADP — e- —> water — e- —> PS II
(D) Water — e- —> PS I — e- —> PS II — e- —> NADP

Answer: Water — e- —> PSII — e- —> PS I — e- —> NADP
7 Which is sensitive to longer wavelength of light?
(A) Photolysis
(B) PSI
(C) PS II
(D) Photophosphorylation

Answer: PSI
8 Phytol tail is present at
(A) 3rd carbon of IInd ring
(B) 2nd carbon of IIIrd ring
(C) 7th carbon of IVth ring
(D) 3rd carbon of IVth ring

Answer:3rd carbon of IVth ring
9 Reduction of co-enzyme NADP depends on
(A) Reduction of CO2
(B) Evolution of O2
(C) Photolysis of water
(D) Formation of ATP

Answer:Photolysis of water
10 Loculus is the internal space of
(A) Grana
(B) Stroma
(C) Thylakoid
(D) Quantasome

Answer: Thylakoid

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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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