Biology MCQs for Class 11 with Answers Chapter 13 Photosynthesis in Higher Plants


Check the below NCERT MCQ Questions for Class 11 Biology with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have provided Class 11 Biology MCQs Questions with Answers to help students understand the concept very well.


Q.1 In which of the following process, the light energy is converted into chemical energy

(a) Digestive action
(b) Respiration
(c) Photosynthesis
(d) Fermentation

(c) Photosynthesis


Q.2 What is common between chloroplasts, chromoplasts and leucoplasts?

(a) Storage of starch, proteins and lipids
(b) Possession of thylakoids and grana
(c) Presence of pigments
(d) Ability to multiply by a fission-like process

(d) Ability to multiply by a fission-like process


Q.3 Discovery of Emerson effect has already shown the existence of

(a) Two distinct photosystems
(b) Light and dark reactions of photosynthesis
(c) Photophosphorylation
(d) Photorespiration

(a) Two distinct photosystems


Q.4 Which range of wavelength (in nm) is called photosynthetically active radiation (PAR)?

(a) 400-700
(b) 760-10,000
(c) 100-390
(d) 390-430

(a) 400-700


Q.5 Which one of the following is represented by Calvin cycle?

(a) Reductive carboxylation
(b) Oxidative carboxylation
(c) Photophosphorylation
(d) Oxidative phosphorylation

(a) Reductive carboxylation


Q.6 Which enzyme is most abundantly found on earth?

(a) Catalase
(b) Rubisco
(c) Nitrogenase
(d) Invertase

(b) Rubisco


Q.7 How many turns of Calvin cycle yield one molecule of glucose?

(a) Eight
(b) Two
(c) Six
(d) Four

(c) Six


Q.8 The end product of the Calvin cycle is _______.

(a) RuBP
(b) PGAL
(c) PGA
(d) ADP + NADP

(a) RuBP


Q.9 The primary carbon dioxide acceptor in C4 cycle is

(a) malic acid
(b) phosphoenol pyruvate
(c) rubisco
(d) aspartic acid

(b) phosphoenol pyruvate


Q.10 The law of limiting factor was given by

(a) Calvin
(b) Blackman
(c) Priestley
(d) None of these

(b) Blackman


Q.11 The metabolic pathway which produces carbohydrate is

(a) Calvin cycle
(b) Glycolysis
(c) Cyclic electron pathway
(d) Krebs cycle

(a) Calvin cycle


Q.12 Manganese is required in

(a) Chlorophyll synthesis
(b) Nucleic acid synthesis
(c) Plant cell wall formation
(d) Photolysis of water during photosynthesis

(d) Photolysis of water during photosynthesis


Q.13 Oxidative phosphorylation refers to

(a) Anaerobic production of ATP
(b) The citric acid cycle production of ATP
(c) Production of ATP by chemiosmosis
(d) Alcoholic fermentation

(c) Production of ATP by chemiosmosis


Q.14 Which of the following is not an accessory pigment?

(a) Carotene
(b) Chlorophyll a
(c) Chlorophyll b
(d) Xanthophyll

(b) Chlorophyll a


Q.15 Besides water and CO2, which is more essential a raw material for food formation

(a) light
(b) oxygen
(c) NAD
(d) mineral salt

(a) light


Q.16 In actively growing young plants, the best data for estimating the rate of photosynthesis would be

(a) ratio of oxygen evolved to carbon dioxide absorbed
(b) increase in fresh weight
(c) increase in dry weight
(d) increase in carbohydrate

(a) ratio of oxygen evolved to carbon dioxide absorbed


Q.17 Discovery of Emerson effect has already shown the

(a) two distinct photochemical reactions
(b) light and dark reactions of photosynthesis
(c) photophosphorylation
(d) photorespiration

(a) two distinct photochemical reactions


Q.18 Which one is common product of both photosynthesis and respiration?

(a) ATP
(b) Chlorophyll
(c) Cytochrome
(d) Quinone

(a) ATP


Q.19 Chloroplast pigments are

(a) Chlorophylls
(b) Phvcobilins
(c) Carotenoids
(d) All of these

(d) All of these


Q.20 During synthesis of a glucose molecule, ATP and NADPH consumed are respectively

(a) 12 and 8
(b) 18 and 12
(c) 15 and 12
(d) 30 and 20

(b) 18 and 12

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