MCQ Question for Class 11 Biology Chapter 13 Photosynthesis in Higher Plants

Students can refer to the following Photosynthesis in Higher Plants MCQ Questions for Class 11 with Answers provided below based on the latest curriculum and examination pattern issued by CBSE and NCERT. Our teachers have provided here collection of multiple choice questions for Chapter 1 Photosynthesis in Higher Plants Class 11 Biology covering all topics in your textbook so that students can assess themselves on all important topics and thoroughly prepare for their exams

Photosynthesis in Higher Plants MCQ Questions for Class 11 Biology with Answers

We have provided below Photosynthesis in Higher Plants MCQ Questions for Class 11 with answers which will help the students to go through the entire syllabus and practice multiple choice questions provided here with solutions. As MCQ Questions for Class 11 Biology pdf download can be really scoring for students, you should go through all problems provided below so that you are able to get more marks in your exams.

Photosynthesis in Higher Plants MCQ Questions for Class 11

Question. Anoxygenic photosynthesis is characteristic of
(a) Rhodospirillum
(b) Spirogyra
(c) Chlamydomonas
(d) Ulva.

Question. Oxygenic photosynthesis occurs in
(a) Oscillatoria
(b) Rhodospirillum
(c) Chlorobium
(d) Chromatium.

Question. One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the egion of
(a) violet and green light
(b) indigo and green light
(c) orange and yellow light
(d) blue and red light. 

Question. Oxygen is not produced during photosynthesis by
(a) Green sulphur bacteria
(b) Nostoc
(c) Cycas
(d) Chara. 

Question. Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
(a) Blue and green
(b) Green and red
(c) Red and violet
(d) Violet and blue

Question. Which element is located at the centre of the porphyrin ring in chlorophyll ?
(a) Calcium
(b) Magnesium
(c) Potassium
(d) Manganese 

Question. Stroma in the chloroplasts of higher plant contains
(a) light-dependent reaction enzymes
(b) ribosomes
(c) chlorophyll
(d) light-independent reaction enzymes.

Question. Chlorophyll a molecule at its carbon atom 3 of the pyrrole ring II has one of the following
(a) carboxylic group
(b) magnesium
(c) aldehyde group
(d) methyl group. 

Question. Emerson’s enhancement effect and Red drop have been instrumental in the discovery of
(a) photophosphorylation and cyclic electron transport
(b) oxidative phosphorylation
(c) photophosphorylation and non-cyclic electron transport
(d) two photosystems operating simultaneously.

Question. Chromatophores take part in
(a) movement
(b) respiration
(c) photosynthesis
(d) growth. 

Question. The core metal of chlorophyll is
(a) Ni
(b) Cu
(c) Fe
(d) Mg. 

Question. The size of chlorophyll molecule is
(a) head 15 × 15 Å, tail 25 Å
(b) head 20 × 20 Å, tail 25 Å
(c) head 15 × 15 Å, tail 20 Å
(d) head 10 × 12 Å, tail 25 Å. 

Question. Which of the following is not a product of light reaction of photosynthesis?
(a) ATP
(b) NADH
(c) NADPH
(d) Oxygen

Question. Which of the following absorb light energy for photosynthesis?
(a) Chlorophyll
(b) Water molecule
(c) O₂
(d) RuBP 

Question. The first step for initiation of photosynthesis will be
(a) photolysis of water
(b) excitement of chlorophyll molecules due to absorption of light
(c) ATP formation
(d) glucose formation. 

Question. Chlorophyll a occurs in
(a) all photosynthetic autotrophs
(b) in all higher plants
(c) all oxygen liberating autotrophs
(d) all plants except fungi. 

Question. Photosynthetic pigments found in the chloroplasts occur in
(a) thylakoid membranes
(b) plastoglobules
(c) matrix
(d) chloroplast envelope. 

Question. NADPH₂ is generated through
(a) photosystem II
(b) anaerobic respiration
(c) glycolysis
(d) photosystem I.

Question. In light reaction, plastoquinone facilitates the transfer of electrons from
(a) PS-II to Cytb6f complex
(b) Cytb6f complex to PS-I
(c) PS-I to NADP⁺
(d) PS-I to ATP synthase. 

Question. In a chloroplast the highest number of protons are found in
(a) intermembrane space
(b) antennae complex
(c) stroma
(d) lumen of thylakoids. 

Question. Read the following four statements (A – D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot tems, a new cambium originates from cells of pericycle at the time of secondary growth. (C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen fixers ccur in free-living state also in soil. How many of the above statements are right?
(a) Two
(b) Three
(c) Four
(d) One

Question. Which of the following pigments acts as a reactioncentre during photosynthesis?
(a) Carotene
(b) Phytochrome
(c) P₇₀₀
(d) Cytochrome 

Question. Ferredoxin is a constituent of
(a) PS I
(b) PS II
(c) Hill reaction
(d) P₆₈₀.

Question. Cyclic photophosphorylation results in the formation of
(a) ATP and NADPH
(b) ATP, NADPH and O₂
(c) ATP
(d) NADPH.

Question. Electrons from excited chlorophyll molecule of photosystem II are accepted first by
(a) quinone
(b) ferredoxin
(c) cytochrome-b
(d) cytochrome-f. 

Question. The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is
(a) iron-sulphur protein
(b) ferredoxin
(c) quinone
(d) cytochrome. 

Question. In photosystem I, the first electron acceptor is
(a) an iron-sulphur protein
(b) ferredoxin
(c) cytochrome
(d) plastocyanin.

Question. Which one of the following is essential for photolysis of water?
(a) Manganese
(b) Zinc
(c) Copper
(d) Boron 

Question. Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is functional in cyclic photophosphorylation. (iii) Cyclic photophosphorylation results into synthesis of ATP and NADPH2. (iv) Stroma lamellae lack PSII s well as NADP.
(a) (ii) and (iv)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (iii) and (iv)

Question. Which pigment system is inactivated in red drop?
(a) PS-I and PS-II
(b) PS-I
(c) PS-II
(d) None of these 

Question. During light reaction of photosynthesis, which of the following phenomenon is observed during cyclic phosphorylation as well as non-cyclic phosphorylation?
(a) Release of O₂
(b) Formation of ATP
(c) Formation of NADPH
(d) Involvement of PS I and PS II pigment systems

Question. A photosynthesising plant is releasing 18O more than the normal. The plant must have been supplied with
(a) O₃
(b) H₂O with¹⁸O
(c) CO₂ with¹⁸O
(d) C₆H₁₂O₆ with¹⁸O.

Question. Which one of the following concerns photophosphorylation ?
(a) ADP + AMP→ ^{Light energy} ATP
(b) ADP + Inorganic PO₄→ ^{Light energy} ATP
(c) ADP + Inorganic PO₄→ ATP
(d) AMP + Inorganic PO₄→ ^{Light energy} ATP

Question. In photosynthesis energy from light reaction to dark reaction is transferred in the form of
(a) ADP
(b) ATP
(c) RuDP
(d) chlorophyll

Question. In photosynthesis, the light-independent reactions take place at
(a) photosystem II
(b) stromal matrix
(c) thylakoid lumen
(d) photosystem I. 

Question. Which one of the following organisms is correctly matched with its three characteristics?
(a) Pea: C₃ pathway, endospermic seed, vexillary aestivation
(b) Tomato: twisted aestivation, axile placentation, berry
(c) Onion: bulb, imbricate aestivation, axile placentation
(d) Maize: C₃ pathway, closed vascular bundles, scutellum

Question. Photosystem II occurs in
(a) stroma
(b) cytochrome
(c) grana
(d) mitochondrial surface. 

Question. NADP⁺ is reduced to NADPH in
(a) PS I
(b) PS II
(c) Calvin cycle
(d) noncyclic photophosphorylation.

Question. PGA as the first CO₂ fixation product was discovered in photosynthesis of
(a) bryophyte
(b) gymnosperm
(c) angiosperm
(d) alga. 

Question. The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because
(a) a proton gradient forms across the inner membrane
(b) there is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP)
(c) high energy bonds are formed in mitochondrial proteins
(d) ADP is pumped out of the matrix into the intermembrane space. 

Question. Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on
(a) membrane potential
(b) accumulation of Na⁺ ions
(c) accumulation of K⁺ ions
(d) proton gradient. 

Question. In C₃ plants, the first stable product of photosynthesis during the dark reaction is
(a) malic acid
(b) oxaloacetic acid
(c) 3-phosphoglyceric acid
(d) phosphoglyceraldehyde. 

Question. Carbon dioxide acceptor in C₃-plants is
(a) PGA
(b) PEP
(c) RuDP
(d) none of these. 

Question. The mechanism of ATP formation both in chloroplast and mitochondria is explained by
(a) chemiosmotic theory
(b) Munch’s hypothesis (mass flow model)
(c) relay pump theory of Godlewski
(d) Cholodny-Wont’s model. 

Question. What will be the number of Calvin cycles to generate one molecule of hexose?
(a) 8
(b) 9
(c) 4
(d) 6 

Question. For assimilation of one CO₂ molecule, the energy required in form of ATP and NADPH₂ are
(a) 2 ATP and 2 NADPH₂
(b) 5 ATP and 3 NADPH₂
(c) 3 ATP and 2NADPH₂
(d) 18 ATP and 12 NADPH₂. 

Question. The carbon dioxide acceptor in Calvin cycle/ C₃-plants is
(a) phosphoenol pyruvate (PEP)
(b) ribulose 1, 5-diphosphate (RuDP)
(c) phosphoglyceric acid (PGA)
(d) ribulose monophosphate (RMP). 

Question. Which technique has helped in investigation of Calvin cycle?
(a) X-ray crystallography
(b) X-ray technique
(c) Radioactive isotope technique
(d) Intermittent light 

Question. For the synthesis of one glucose molecule the Calvin
cycle operates for
(a) 2 times
(b) 4 times
(c) 6 times
(d) 8 times. 

Question. The primary acceptor, during CO₂ fixation in C₃ plants, is
(a) phosphoenolpyruvate (PEP)
(b) ribulose 1, 5-diphosphate (RuDP)
(c) phosphoglyceric acid (PGA)
(d) ribulose monophosphate (RMP). 

Our teachers have developed really good Multiple Choice Questions covering all important topics in each chapter which are expected to come in upcoming tests and exams, as MCQs are coming in all exams now therefore practice them carefully to get full understanding of topics and get good marks. Download the latest questions with multiple choice answers for Class 11 Photosynthesis in Higher Plants in pdf or read online for free.

The above NCERT based Photosynthesis in Higher Plants MCQ Questions for Class 11 have been designed by our teachers in such a way that it will help you a lot to gain an understanding of each topic. These CBSE NCERT Class 11 Photosynthesis in Higher Plants Multiple Choice Questions have been developed and are available free for benefit of Class 11 students.

Advantages of Photosynthesis in Higher Plants MCQ Questions for Class 11 with Answers

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