Physiology and Metabolism MCQ Questions & Answers

31

During mixed acid fermentation by E. coli, which one of the following is not produced?

A) Lactic acid B) Ethanol C) Succinic acid D) Citric acid

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Answer & Solution

Answer: Option D

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32

The number of ATP produced when a molecule of glucose undergoes fermentation

A) 4 B) 36 C) 2 D) 38

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Answer & Solution

Answer: Option C

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33

Photosynthetic pigments is chloroplasts are embedded in the membrane of

A) Matrix B) Photoglobin C) Thylakoids D) Chloroplast E) Chloroplast envelope

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Answer & Solution

Answer: Option C

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34

Which of the following reactions is suggestive of oxidative decarboxylation?

A) Conversion of oxalosuccinate to α-ketoglutarate B) Conversion of isocitrate to oxalosuccinate C) Conversion of α-ketoglutarate to succinyl co-A D) Conversion of succinate to fumerate

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Answer & Solution

Answer: Option C

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35

Photosynthesis is a process of converting

A) Heat energy into chemical energy B) Light energy into heat energy C) Electromagnetic energy into chemical energy D) Light energy into mechanical energy

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Answer & Solution

Answer: Option C

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36

Anoxic earth become oxygenated due to oxygenic photosynthesis by

A) Angiosperms B) Gymnosperms C) Archaea D) Cyanobacteria

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Answer & Solution

Answer: Option D

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37

Phytochromes A and B maximally absorb light at wavelength range

A) 150 - 300 nm B) 300 - 450 nm C) 450 - 550 nm D) 600 - 750 nm

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Answer & Solution

Answer: Option D

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38

Light absorbing antennas of the blue and red algae living at a depth of a metre or more in sea water are called as

A) Phycobilisomes B) Phycocyanobilins C) Phycoerythrobilins D) All the above

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Answer & Solution

Answer: Option A

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39

Cytochrome are

A) Riboflavin-containing nucleotides B) Metal-containing flavoproteins C) Pyridine nucleotides D) Iron-porphrin proteins

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Answer & Solution

Answer: Option D

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40

A culture can grow independently in two carbon sources, glucose and hexadecane. Identify which one of the following statements is true?

A) The biomass growth yields is more in hexadecane than in glucose B) The biomass growth yields is lower in hexadecane than in glucose C) The oxygen consumed is higher when compared to hexadecane D) The CO₂ produced will be more in glucose than in hexadecane

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Answer & Solution

Answer: Option A

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Physiology and Metabolism MCQ Questions & Answers | Biotechnology