Physiology and Metabolism MCQ Questions & Answers

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ln a prokaryotic cell the respiratory enzymes are located in

A) Plasma membrane B) Mitochondria C) Cytoplasm D) Lysosomes

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Autotrophic organisms include

A) Green plants and purple sulphur bacteria (PSB) B) Green plants and all bacteria C) Bacteria and viruses D) None of the above

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Answer & Solution

Answer: Option A

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Electron from Cyt-C are carried to molecular O₂ in

A) Fermentation B) Aerobic respiration C) Anaerobic respiration D) Denitrification

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Answer & Solution

Answer: Option B

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The first step in photosynthesis is

A) Ionization of water B) Formation of ATP C) Attachment of CO₂ to 5-carbon sugar D) Excitement of electron to chlorophyll-a by photon of light

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Answer & Solution

Answer: Option A

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The hydrogen donor in bacterial photosynthesis is usually

A) Water B) Ammonia C) Hydrogen sulphide D) Sulphur

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Answer & Solution

Answer: Option C

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When sunlight is on the chloroplast, pH is lowest in the

A) Stroma B) Space enclosed by the inner and outer membrane C) Space enclosed by the thylakoid membrane D) Cytosol

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Answer & Solution

Answer: Option C

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The light reaction of photosynthesis does not include?

A) Chemiosmosis B) Charge separation C) Electron transport D) Oxygen liberations

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Answer & Solution

Answer: Option B

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The core functional unit present-in NADH is

A) Pyridine B) Dihydro pyridine C) Purine D) pyrimidine

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Answer & Solution

Answer: Option B

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For metabolic engineering in plants having improved tolerance to osmotic stress, mannitol is overproduced because it

A) Lowers the water potential in the plant cell B) Increases the water potential I the plant cell C) Lowers membrane potential in the plant cell D) Increases membrane potential in the plant cell

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Answer & Solution

Answer: Option A

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Enzyme of TCA cycle in prokaryotic cells are located in

A) Plasma membrane B) Mitochondria C) Nucleus D) Golgi bodies

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Answer & Solution

Answer: Option A

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Physiology and Metabolism MCQ Questions & Answers | Biotechnology