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Photosynthesis Quiz

Photosynthesis Quiz with answers

Photosynthesis (Biology) objective type question bank with 35 questions and answers.

Ques. Which of the following is least effective in photosynthesis?
(a) Sun light
(b) Red light
(c) Blue light
(d) Green light
Ans: (d)

Ques. Dark reactions of photosynthesis occur in
(a) Granal thylakoid membranes
(b) Stromal lamella membranes
(c) Stroma outside photosynthetic lamellae
(d) Periplastidial space
Ans: (c)

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Ques. Oxygen containing carotenoids are
(a) Carotenes
(b) Xanthophylls
(c) Anthocyanins
(d) Phycobilins
Ans: (b)

Ques. Photorespiration occurs in
(a) Mitochondria
(b) Ribosomes
(c) Peroxisomes
(d) Lysosomes
Ans: (c)

Ques. Which of the following plant shows chloroplast dimorphism?
(a) Wheat
(b) Rice
(c) Sugar beet
(d) Sugarcane
Ans: (d)

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Ques. First product of photorespiration is
(a) Phosphoglycolate
(b) Glycolate
(c) Glycerine
(d) None of these
Ans: (a)

Ques. Complete girdling ultiamtely kills the tree due to
(a) Starvation of root
(b) Stoppage of photosynthesis
(c) Nonmovement of minerals
(d) Nonmovement of water.
Ans: (a)

Ques. Core metal of chlorophyll is
(a) Cu
(b) Mg
(c) Fe
(d) Ni
Ans: (b)

Ques. ATP formation during photosynthesis is
(a) Phosphorylation
(b) Photophosphorylation
(c) Oxidative phosphorylation
(d) None of these
Ans: (b)

Ques. Photosynthetic pigments found in the chloroplasts occurs in
(a) Thylakoid membranes
(b) Plastoglobules
(c) Matrix
(d) Chloroplast envelope
Ans: (a)

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Ques. Chlorophylls absorb visible light of wavelengths
(a) 400-500 nm only
(b) 300-400 nm only
(c) 600-800 nm only
(d) 400-500 nm and 600-700 nm
Ans: (d)

Ques. The law of limiting factors for photosynthesis was enunciated by
(a) R. Hill
(b) Calvin
(c) Krebs
(d) Blackman
Ans: (d)

Ques. Loading of phloem means
(a) Elongation of phloem cells
(b) Separation of phloem parenchyma
(c) Strengthening of phloem fibres
(d) Pouring of sugar into phloem
Ans: (d)

Ques. Translocation of carbohydrate nutrients usually occurs in the form of
(a) Glucose
(b) Maltose
(c) Starch
(d) Sucrose
Ans: (d)

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Ques. ATP is
(a) Adenine triphosphate
(b) Adenosine tetraphosphate
(c) Adenosine triphosphate
(d) Adenine tetraphosphate
Ans: (c)

Ques. Kranz anatomy occurs in
(a) Leaves
(b) Stem
(c) Flower
(d) Seed
Ans: (a)

Ques. Calvin cycle is
(a) Dependent upon light
(b) Independent of light
(c) Supported by light
(d) Hindered by light
Ans: (c)

Ques. Condition favouring cyclic photophosphorylation is
(a) Anaerobic environment
(b) Aerobic and low light intensity
(c) Aerobic and optimum light
(d) Anaerobic and low light intensity
Ans: (b)

Ques. What is true for photosynthesis ?
(a) Both carbon dioxide and water are oxidised
(b) Both carbon dioxide and water are reduced
(c) Carbon dioxide is oxidised and water reduced
(d) Carbon dioxide is reduced and water oxidised
Ans: (c)

Ques. Light energy is converted into chemical energy in the presence of
(a) Chloroplasts
(b) Pyrenoids
(c) Ribosomes
(d) Mesosomes
Ans: (a)

Ques. Which element is required photosynthetic evolution of oxygen ?
(a) Cu
(b) Fe
(c) Zn
(d) Mn
Ans: (d)

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Ques. Special feature of C4 plants is
(a) Thin cuticle
(b) Multilayered epidermis
(c) Kranz anatomy
(d) Both (a) and (b)
Ans: (c)

Ques. Which one is product in respiration and reagent in photosynthesis ?
(a) O2
(b) CO2
(c) CO
(d) N2
Ans: (b)

Ques. Plants purify air during
(a) Photosynthesis
(b) Respiration
(c) Transpiration
(d) Desiccation
Ans: (a)

Ques. Maximum starch is manufactured by
(a) Spongy parenchyma
(b) Palisade parenchyma
(c) Guard cells
(d) Vascular tissue
Ans: (b)

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Ques. In C4 plants synthesis of sugars/final CO2 fixation occurs in
(a) Undifferentiated mesophyll cells
(b) Bundle sheath cells
(c) Epidermal cells
(d) Spongy cells
Ans: (b)

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