mdcat logical reasoning MCQ #942

mdcat logical reasoning MCQ #942

1. Question 1

   Q1. During intense exercise, an athlete relies on anaerobic respiration for rapid ATP production.

   • A) Glucose is broken down into pyruvate and then converted to acetyl-CoA.
   • B) Acetyl-CoA is converted to NADH and FADH2 in the citric acid cycle.
   • C) Pyruvate is converted to lactate and NAD+ is recycled.
   • D) ATP is produced when NADH donates electrons to the electron transport chain.

   Answer: Pyruvate is converted to lactate and NAD+ is recycled.

   Explanation: Pyruvate conversion to lactate is key in anaerobic respiration, recycling NAD+ to sustain glycolysis.