NEET Photosynthesis in Higher Plants 5 MCQ Tests × 10 Questions = 50 Questions

Photosynthesis in Higher Plants

5 MCQ Tests × 10 Questions = 50 Questions

Submit a test to reveal the correct answer under every question.

Test 1 – 10 Questions

1. In photosystem - I, the first electron acceptor is

A) Plastocyanin B) An iron - sulphur protein C) Ferredoxin D) Cytochrome [AIPMT 2006 (+4 / – 1)]

Correct Answer: B) An iron - sulphur protein

2. During photorespiration, the oxygen consuming reaction(s) occur in

A) Grana of chloroplasts and peroxisomes B) Stroma of chloroplasts C) Stroma of chloroplasts and mitochondria D) Stroma of chloroplasts and peroxisomes [AIPMT 2006 (+4 / – 1)]

Correct Answer: C) Stroma of chloroplasts and mitochondria

3. The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is: -

A) Quinone B) Cytochrome C) Iron - sulphur protein D) Ferredoxin [AIPMT 2007 (+4 / – 1)]

Correct Answer: B) Cytochrome

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4. In the leaves of C 4 plants, malic acid formation during CO 2 fixation occurs in the cells of: -

A) Epidermis B) Mesophyll C) Bundle Sheath D) Phloem [AIPMT 2007 (+4 / – 1)]

Correct Answer: D) Phloem [AIPMT 2007 (+4 / – 1)]

5. In leaves of C 4 plants malic acid synthesis during CO 2 fixation occurs in: -

A) Bundle sheath B) Guard cells C) Epidermal cells D) Mesophyll cells [AIPMT 2008 (+4 / – 1)]

Correct Answer: B) Guard cells

6. The C 4 plants are photosynthetically more efficient than C 3 plants because: -

A) The CO 2 efflux is not prevented B) They have more chloroplasts C) The CO 2 compensation point is more D) CO 2 generated during photorespiration is trapped and recycled thro ugh PEP carboxylase [AIPMT 2008 (+4 / – 1)]

Correct Answer: A) The CO 2 efflux is not prevented

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7. Electrons from excited chlorophyll molecule of photosystem II are accepted first by: -

A) Quinone B) Ferredoxin C) Cytochrome – b D) Cytochrome – f [AIPMT 2008 (+4 / – 1)]

Correct Answer: C) Cytochrome – b

8. Oxygenic photosynthesis occurs in: -

A) Oscillatoria B) Rhodospirillum C) Chlorobium D) Chromatium [AIPMT 2009 (+4 / – 1)]

Correct Answer: A) Oscillatoria

9. Cyclic photophosphorylation results in the formation of: -

A) ATP and NADPH B) ATP, NADPH and O 2 C) ATP D) NADPH [AIPMT 2009 (+4 / – 1)] Exercise - 2 (NEET PYQs) NEET : Biology

Correct Answer: A) ATP and NADPH

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10. PGA as the first CO 2 fixation product was discovered in photosynthesis of: -

A) Bryophyte B) Gymnosperm C) Angiosperm D) Alga [AIPMT Pre 2010 (+4 / – 1)]

Correct Answer: D) Alga [AIPMT Pre 2010 (+4 / – 1)]

Test 2 – 10 Questions

1. C 4 plants are more efficient in photosynthesis than C 3 plants due to: -

A) Higher leaf area B) P resence of larger number of choloplasts in the leaf cells C) Presence of thin cuticle D) Lower rate of photorespiration [AIPMT Pre 2010 (+4 / – 1)]

Correct Answer: B) P resence of larger number of choloplasts in the leaf cells

2. Study the pathway given below: - In which of the following options correct words for all the three blanks A, B and C are indicated? A B C

A) Fixation Transmination Regeneration B) Fixation Decarboxylation Regeneration C) Carboxylation Decarboxylation Reduction D) Decarboxylation Reduction Regeneration [AIPMT mains 2010 (+4 / – 1)] Photosynthesis in higher plants

Correct Answer: B) Fixation Decarboxylation Regeneration

3. Read the following four statements, A, B, C and D and select the right option having both correct statements. Statements: (A) Z scheme of light reaction takes place in present of PSI only. (B) Only PSI is functional in cyclic photophosphorylation (C) Cyclic photophosphorylation results into synthesis of ATP and NADPH(H+) (D) Stroma lamellae lack PSII as well as NADP reductase Options:

A) A and B B) B and C C) C and D D) B and D [AIPMT mains 2010 (+4 / – 1)]

Correct Answer: D) B and D [AIPMT mains 2010 (+4 / – 1)]

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4. CAM helps the plants in: -

A) Conserving water B) Secondary growth C) Disease resistance D) Reproduction [AIPMT Pre 2011 (+4 / – 1)]

Correct Answer: A) Conserving water

5. In Kranz anatomy, the bundle sheath cells have: -

A) thick walls, many intercellular spaces and few chloroplasts B) thin walls, many intercellular spaces and no chloroplasts. C) thick walls, no intercellular spaces and large number of chloroplasts. D) thin walls, no intercellular spaces and several chloroplasts. [AIPMT mains 2011 (+4 / – 1)]

Correct Answer: D) thin walls, no intercellular spaces and several chloroplasts. [AIPMT mains 2011 (+4 / – 1)]

6. A process that makes imp ortant difference between C 3 and C 4 plants is: -

A) Photosynthesis B) Photorespiration C) Transpiration D) Glycolysis [AIPMT pre - 2012 (+4 / – 1)]

Correct Answer: B) Photorespiration

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7. The correct sequence of cell organelles during photorespiration is : -

A) Chloroplast - mitochondria - peroxisome B) Chloroplast - vacuole - peroxisome C) Chloroplast - Golgibodies - mitochondria D) Chloroplast - Rough endoplasmic reticulum - Dictyosomes [AIPMT pre - 2012 (+4 / – 1)]

Correct Answer: C) Chloroplast - Golgibodies - mitochondria

8. Anoxygenic photosynthesis is characteristic of: -

A) Rhodospirillum B) Spirogyra C) Chlamydomonas D) Ulva [AIPMT 2014 (+4 / – 1)]

Correct Answer: A) Rhodospirillum

9. Chromatophores take part in: -

A) Respiration B) Photosynthesis C) Growth D) Movement [Re - AIPMT 2015 (+4 / – 1)] NEET : Biology

Correct Answer: A) Respiration

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10. In photosynthesis, the light - independent reactions take place at: -

A) Stromal matrix B) Thylakoid lumen C) Photosystem - I D) Photosystem - II [Re - AIPMT 2015 (+4 / – 1)]

Correct Answer: A) Stromal matrix

Test 3 – 10 Questions

1. Emerson's enhancement effect and red drop have been instrumental in the discovery of: -

A) Photophosphorylation and non - cyclic electron transport B) Two photosystems operating simultaneously C) Photophosphorylation and cyclic electron transport D) Oxidative phosphorylation [NEET - I 2016 (+4 / – 1)]

Correct Answer: C) Photophosphorylation and cyclic electron transport

2. In a chloroplast the highest number of p rotons are found in: -

A) Stroma B) Lumen of thylakoids C) Inter membrane space D) Antennae complex [NEET - I 2016 (+4 / – 1)]

Correct Answer: A) Stroma

3. A plant in your garden avoids photorespiratory losses, has improved water use efficiency shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you a ssign this plant?

A) C 3 B) C 4 C) CAM D) Nitrogen fixer [NEET - I 2016 (+4 / – 1)]

Correct Answer: C) CAM

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4. The process which makes major difference between C 3 and C 4 plants is: -

A) Photorespiration B) Respiration C) Glycolysis D) Calvin cycle [NEET - II 2016 (+4 / – 1)]

Correct Answer: C) Glycolysis

5. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?

A) Increasing atmospheric CO 2 concentration up to 0.05% can enhance CO 2 fixation rate B) C 3 plants respond to higher temperature s with enhanced photosynthesis while C 4 plants have much lower temperature optimum C) Tomato is a greenhouse crop which can be grown in CO 2 - enriched atmosphere for higher yield D) Light saturation for CO 2 fixation occurs at 10% of full sunlight [NEET - (UG) 2017 (+4 / – 1)]

Correct Answer: C) Tomato is a greenhouse crop which can be grown in CO 2 - enriched atmosphere for higher yield

6. Phosphonyl pyruvate (PEP) is the primary CO 2 acceptor in:

A) C 4 plants B) C 2 plants C) C 3 and C 4 plants D) C 3 plants [NEET - (UG) 2017 (+4 / – 1)]

Correct Answer: C) C 3 and C 4 plants

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7. Which of the following is not a product of light reaction of photosynthesis?

A) ATP B) NADH C) NADPH D) Oxygen [NEET - (UG) 2018 (+4 / – 1)] Photosynthesis in higher plants

Correct Answer: C) NADPH

8. Oxygen is not produced during photosynthesis by: -

A) Green Sulphur bacteria B) Nostoc C) Cycas D) Chara [NEET - (UG) 2018 (+4 / – 1)]

Correct Answer: B) Nostoc

9. In Hatch and Slack pathway, the primary CO 2 acceptor is: -

A) Oxaloacetic acid B) Phosphoglyceric acid C) Phosphoenol pyruvate D) RuBisCO [NEET - (UG) 2019 (Odisha) (+4 / – 1)]

Correct Answer: A) Oxaloacetic acid

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10. 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 region of:

A) Violet and green light B) Indigo and green light C) Orange and yellow light D) Blue and red light [NEET - (UG) 2019 (Odisha) (+4 / – 1)] 31 . In light reaction, plastoquinone facilitates the transfer of electrons from : (1) PS - I to ATP synthase (2) PS - II to Cytb6f complex (3) Cytb6f complex to PS - I (4) PS - I to NADP + [NEET - (UG) 2020 (+4 / – 1)] 3 2 . The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of (1) 1 molecule of 4 - C compound and 1 molecule of 2 - C compound. (2) 2 molecules of 3 - C compound (3) 1 molecule of 3 - C compound (4) 1 molecule of 6 - C compound [NE ET - (UG) 2020 (+4 / – 1)] 33 . During non - cyclic photophosphorylation, when electrons are lost from the reaction centre at PS II, what is the source which replaces these electrons? (1) Oxygen (2) Water (3) Carbon dioxide (4) Light [NEET - (UG) [COVID - 19] 2020 (+4 / – 1)] 34 . Which of the following statements is incorrect? (1) RuBisCO is a bifunctional enzyme (2) In C 4 plants, the site of RuBisCO activity is mesophyll cell (3) The substrate molecule for RuBisCO activity is a 5 - carbon compound (4) RuBisCO action requires ATP and NADPH [NEET - (UG) [COVID - 19] 2020 (+4 / – 1)] 35 . The first stable product of CO 2 fixation in sorghum is : (1) Pyruvic acid (2) Oxaloacetic acid (3) Succinic acid (4) Phosphoglyceric acid [NEET - (UG) 2021 (+4 / – 1)] NEET : Biology 36 . Which of the following statements is incorrect ? (1) Both ATP and NADPH + H+ are synthesized during non - cyclic photophosphorylation. (2) Stroma lamellae have PS I only and lack NADP reductase. (3) Grana lamellae have both PS I and PS II. (4) Cyclic photophosphorylation involves both PS I and PS II. [NEET - (UG) 2021 (+4 / – 1)] 37 . In the plastid, the site of dark and light reaction is (1) Grana and stroma respectively (2) Grana and matrix respectively (3) Matrix and grana respectively (4) Stroma and grana respectively [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 38 . The maximum absorption of light by chlorophyll occurs in which region of the absorption spectrum. (1) Red and green (2) Yellow and green (3) Blue and red (4) Brown and red [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 39 . Non - cyclic photophosphorylation results in the formation of (1) ATP and NADH + H + (2) ATP only (3) ATP and NADPH + H + (4) ATP, ADP and NADH + H + [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 40 . Given below are two statements : Statement I: The primary CO 2 acceptor in C 4 plants is phosphoenolpyruvate and is found in the mesophyll cells. Statement II: Mesophyll cells of C 4 plants lack RuBisCo enzyme. In the light of the above statements, choose the correct answer from the options given below: (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both Statement I and Statement II are correct [NEET - (UG) 2022 (+4 / – 1)] 41 . Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves : (1) Breakdown of electron gradient (2) Movement of protons across the membrane to the stroma (3) Reduction of NADP to NADPH2 on the stroma side of the membrane (4) Breakdown of proton gradient [NEET - (UG) 2022 (+4 / – 1)] 42 . What is the role of large bundle shealth cells found around the vascular bundles in C 4 plants? (1) To increase the number of chloroplasts for the operation of Calvin cycle (2) To enable the plant to tolerate high temperature (3) To protect the vascular tissue from high light intensity (4) To provide the site for photorespiratory pathway [NEET - (UG) 2022 (+4 / – 1)] Photosynthesis in higher plants 43 . When one CO 2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase ? (1) 1 ATP + 1 NADPH (2) 1 ATP + 2 NADPH (3) 2 ATP + 1 NADPH (4) 2 ATP + 2 NAD PH [ Re - NEET - (UG) 2022 (+4 / – 1)] 44 . Match List - I with List - II : List - I List - II (a) Porins (i) Pink coloured nodules (b) leg haemoglobin (ii) Lumen of thylakoid (c) H+ accumulation (iii) Amphibolic pathway (d) Respiration (iv) Huge pores in outer membrane of mitochondria Choose the correct answer from the options given below : (1) (a) - (ii), (b) - (i), (c) - (iv), (d) - (iii) (2) (a) - (iv), (b) - (i), (c) - (ii), (d) - (iii) (3) (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i) (4) (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii) [ Re - NEET - (UG) 2022 (+4 / – 1)] 45 . Identify the correct statements regarding chemiosmotic hypothesis : (a) Splitting of the water molecule takes place on the inner side of the membrane. (b) Protons accumulate within the lumen of the thylakoids. (c) Primary acceptor of electron transfers the electrons to an electron carrier. (d) NADP reductase enzyme is located on the stroma side of the membrane. (e) Protons increase in number in stroma. Choose t he correct answer from the options given below: (a) (a), (b) and (e) (2) (a), (b) and (d) (3) (b), (c) and (d) (4) (b), (c) and (e) [ Re - NEET - (UG) 2022 (+4 / – 1)] Answer Key Question 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Answer 2 4 1 2 4 2 1 1 3 4 2 2 4 1 3 Question 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Answer 2 1 1 2 1 2 2 2 1 2 1 2 1 3 4 Question 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Answer 2 3 2 2 2 4 4 3 3 4 1 1 1 2 2

Correct Answer: D) Blue and red light [NEET - (UG) 2019 (Odisha) (+4 / – 1)] 31 . In light reaction, plastoquinone facilitates the transfer of electrons from : (1) PS - I to ATP synthase (2) PS - II to Cytb6f complex (3) Cytb6f complex to PS - I (4) PS - I to NADP + [NEET - (UG) 2020 (+4 / – 1)] 3 2 . The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of (1) 1 molecule of 4 - C compound and 1 molecule of 2 - C compound. (2) 2 molecules of 3 - C compound (3) 1 molecule of 3 - C compound (4) 1 molecule of 6 - C compound [NE ET - (UG) 2020 (+4 / – 1)] 33 . During non - cyclic photophosphorylation, when electrons are lost from the reaction centre at PS II, what is the source which replaces these electrons? (1) Oxygen (2) Water (3) Carbon dioxide (4) Light [NEET - (UG) [COVID - 19] 2020 (+4 / – 1)] 34 . Which of the following statements is incorrect? (1) RuBisCO is a bifunctional enzyme (2) In C 4 plants, the site of RuBisCO activity is mesophyll cell (3) The substrate molecule for RuBisCO activity is a 5 - carbon compound (4) RuBisCO action requires ATP and NADPH [NEET - (UG) [COVID - 19] 2020 (+4 / – 1)] 35 . The first stable product of CO 2 fixation in sorghum is : (1) Pyruvic acid (2) Oxaloacetic acid (3) Succinic acid (4) Phosphoglyceric acid [NEET - (UG) 2021 (+4 / – 1)] NEET : Biology 36 . Which of the following statements is incorrect ? (1) Both ATP and NADPH + H+ are synthesized during non - cyclic photophosphorylation. (2) Stroma lamellae have PS I only and lack NADP reductase. (3) Grana lamellae have both PS I and PS II. (4) Cyclic photophosphorylation involves both PS I and PS II. [NEET - (UG) 2021 (+4 / – 1)] 37 . In the plastid, the site of dark and light reaction is (1) Grana and stroma respectively (2) Grana and matrix respectively (3) Matrix and grana respectively (4) Stroma and grana respectively [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 38 . The maximum absorption of light by chlorophyll occurs in which region of the absorption spectrum. (1) Red and green (2) Yellow and green (3) Blue and red (4) Brown and red [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 39 . Non - cyclic photophosphorylation results in the formation of (1) ATP and NADH + H + (2) ATP only (3) ATP and NADPH + H + (4) ATP, ADP and NADH + H + [NEET - (UG) [Paper - 2]2021 (+4 / – 1)] 40 . Given below are two statements : Statement I: The primary CO 2 acceptor in C 4 plants is phosphoenolpyruvate and is found in the mesophyll cells. Statement II: Mesophyll cells of C 4 plants lack RuBisCo enzyme. In the light of the above statements, choose the correct answer from the options given below: (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both Statement I and Statement II are correct [NEET - (UG) 2022 (+4 / – 1)] 41 . Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves : (1) Breakdown of electron gradient (2) Movement of protons across the membrane to the stroma (3) Reduction of NADP to NADPH2 on the stroma side of the membrane (4) Breakdown of proton gradient [NEET - (UG) 2022 (+4 / – 1)] 42 . What is the role of large bundle shealth cells found around the vascular bundles in C 4 plants? (1) To increase the number of chloroplasts for the operation of Calvin cycle (2) To enable the plant to tolerate high temperature (3) To protect the vascular tissue from high light intensity (4) To provide the site for photorespiratory pathway [NEET - (UG) 2022 (+4 / – 1)] Photosynthesis in higher plants 43 . When one CO 2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase ? (1) 1 ATP + 1 NADPH (2) 1 ATP + 2 NADPH (3) 2 ATP + 1 NADPH (4) 2 ATP + 2 NAD PH [ Re - NEET - (UG) 2022 (+4 / – 1)] 44 . Match List - I with List - II : List - I List - II (a) Porins (i) Pink coloured nodules (b) leg haemoglobin (ii) Lumen of thylakoid (c) H+ accumulation (iii) Amphibolic pathway (d) Respiration (iv) Huge pores in outer membrane of mitochondria Choose the correct answer from the options given below : (1) (a) - (ii), (b) - (i), (c) - (iv), (d) - (iii) (2) (a) - (iv), (b) - (i), (c) - (ii), (d) - (iii) (3) (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i) (4) (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii) [ Re - NEET - (UG) 2022 (+4 / – 1)] 45 . Identify the correct statements regarding chemiosmotic hypothesis : (a) Splitting of the water molecule takes place on the inner side of the membrane. (b) Protons accumulate within the lumen of the thylakoids. (c) Primary acceptor of electron transfers the electrons to an electron carrier. (d) NADP reductase enzyme is located on the stroma side of the membrane. (e) Protons increase in number in stroma. Choose t he correct answer from the options given below: (a) (a), (b) and (e) (2) (a), (b) and (d) (3) (b), (c) and (d) (4) (b), (c) and (e) [ Re - NEET - (UG) 2022 (+4 / – 1)] Answer Key Question 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Answer 2 4 1 2 4 2 1 1 3 4 2 2 4 1 3 Question 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Answer 2 1 1 2 1 2 2 2 1 2 1 2 1 3 4 Question 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Answer 2 3 2 2 2 4 4 3 3 4 1 1 1 2 2

Test 4 – 10 Questions

1. Which one of the following is precursor of protochlorophyll?

A) Acetyl COA B) Succinyl COA C) Oxlaoacetic acid D) a - ketoglutarate LIGHT REACTIONS OR PHOTOP HOSPHORYLATION

Correct Answer: B) Succinyl COA

2. The first step in photosynthesis is: -

A) Joining of three carbon atoms to from glucose B) Formation of ATP C) Ionization of water D) Excitement of an electron of chlorophyll by a photon of light.

Correct Answer: D) Excitement of an electron of chlorophyll by a photon of light.

3. The product of light react ion is: -

A) ATP & NADPH(H + ) B) NADPH(H + ) & glucose C) Only ATP D) O2 & glucose

Correct Answer: A) ATP & NADPH(H + )

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4. Which one of the following concerns with photophosphorylation?

A) ADP + AMP ⎯⎯⎯⎯⎯ →Lightenergy ATP B) ADP + Inorganic PO 4 ATP C) ADP + Inorganic PO 4 ⎯ ⎯ ⎯ ⎯ → ATP D) AMP + Inorganic PO 4 ⎯ ⎯ ⎯ ⎯ → ATP

Correct Answer: B) ADP + Inorganic PO 4 ATP

5. The function of ATP in photosynthesis is the transfer of energy from the: -

A) Dark reaction to the light reaction B) Light reaction to the dark reaction C) Chloroplasts to mitochondria D) Mi tochondria to chloroplasts

Correct Answer: B) Light reaction to the dark reaction

6. In photosynthesis, hydrogen is transferred from the light reactions to dark reactions by: –

A) NAD B) DNA C) ATP D) NADP Photosynthesis in higher plants

Correct Answer: D) NADP Photosynthesis in higher plants

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7. During photochemical reaction of photosynthesis –

A) liberation of O 2 takes place B) Formation of ATP and NADPH 2 take place C) Liberation of O 2 , formation of ATP, and NADPH 2 takes place D) Assimilation of CO 2 takes place

Correct Answer: C) Liberation of O 2 , formation of ATP, and NADPH 2 takes place

8. Which of the following is excited molecule during photosynthesis?

A) Chlorophyll B) Oxygen C) Carbondioxide D) Water

Correct Answer: A) Chlorophyll

9. NADPH(H + ) is also called: -

A) Real power B) Oxidising agent C) Power house of energy D) Reducing power

Correct Answer: D) Reducing power

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10. During splitting of H 2 O, H + is ultimately captured by: -

A) Chlorophyll B) NADP C) O 2 D) Cytochr ome

Correct Answer: B) NADP

Test 5 – 10 Questions

1. At the time of splitting of H 2 O, which initially captures the electron: -

A) Chlorophyll B) NADP C) OH – D) Cytochrome

Correct Answer: A) Chlorophyll

2. In cyclic photophosphorylation which one of the following is formed?

A) NADP & ATP B) ATP C) NADH + H + and O 2 D) NADPH + H + , ATP and O 2

Correct Answer: B) ATP

3. Fixation of 1 CO2 requires: –

A) 6NADPH(H + ) & 3ATP B) 2NADPH(H + ) & 3ATP C) 4NADPH(H + ) & 3ATP D) 5NADPH(H + ) & 3ATP

Correct Answer: B) 2NADPH(H + ) & 3ATP

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4. Photooxidation of water in photosynthesis is associated with: -

A) Cytochrome b 6 B) Pigment system - I C) Pigment system - II D) Plastocyanin

Correct Answer: C) Pigment system - II

5. During ATP synthesis electron pass through: -

A) Water B) Cytochromes C) O 2 D) CO 2

Correct Answer: B) Cytochromes

6. Which pigment system immediately donates e – for the reduction of NADP?

A) PS I I B) PS I C) CO 2 D) Plastoquinone NEET : Biology

Correct Answer: B) PS I

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7. Photosynthesis is an oxidation reduction process, the materials that is oxidised is: -

A) CO 2 B) NADP C) H 2 O D) PGA

Correct Answer: C) H 2 O

8. Photo - oxidation of chlorophyll is called: -

A) Necrosis B) Chlorosis C) So larization D) Defoliation

Correct Answer: C) So larization

9. Which element are presents in OEC (Oxygen evolving complex)?

A) Mn ++ B) Cl – C) Ca ++ D) All

Correct Answer: D) All

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10. Which one is Cu ++ containing complex?

A) Ferridoxin B) Plastocyanin C) Plastoquinone D) Cytochrome

Correct Answer: B) Plastocyanin

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