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GATE 2022 BT – Question 49

General Biology · Biochemistry: Metabolism of carbohydrates, lipids, amino acids and nucleic acids, glycolysis, citric acid cycle, fatty acid oxidation, photosynthesis, respiration and electron transport · 2 marks · Multiple select

Which of the following is(are) COMMON feature(s) for both aerobic and anaerobic bacterial cultures?

  1. Glycolysis
  2. NAD+ is the oxidising agent
  3. Oxidative phosphorylation
  4. Two net ATP molecules formed per glucose molecule

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Show answer and explanation

Correct answer: (A) Glycolysis; (B) NAD+ is the oxidising agent

Explanation

A and B are the accepted common features: glycolysis and use of NAD⁺ as an oxidizing agent. The total ATP yield per glucose is not two in aerobic growth, so D is not a common overall yield. Oxidative phosphorylation is not common to all aerobic and anaerobic cultures.

Official GATE 2022 answer key: https://gate2026.iitg.ac.in/doc/download/Answer_keys2022/bt_2022.pdf