Question

Description: Cellular respiration is the process that allows your body to harvest a huge amount of energy from a single glucose. In fact, it's so efficient that you get 30 ATP for every 1 glucose molecule you eat. This exercise is going to break down exactly where each ATP comes from.

Instructions: raw each metabolic step which generates an ATP, NADH or FADH2, include the names, structures and enzyme for each step. From there, look up the conversion rates from NADH and FADH2 to ATP and calculate exactly how 30 ATP are formed. Also include any step which uses an ATP (this will count against the total ATP formed).

Submit the structures and enzymes as well as ATP calculation

Answer 1

Ans. The calculations for net gain of 30 ATP is summarized in tabulated form.

The complete glycolysis and citric acid cycle pathway is shown.

# Reactions of glycolysis that –

            I. Consumes ATP       = 1, 3

            II. Produces ATP        = 7, 10

            III. Consumes NAD⁺ and produces NADH = 6

            IV. Consumes FAD and produces FADH₂ = none

# Conversion of pyruvate into Acetyl-CoA produces 1 NADH

# Reactions of TCA that –

            I. Consumes ATP       = none

            II. Produces ATP        = 6

            III. Consumes NAD⁺ and produces NADH = 4, 5, 9

            IV. Consumes FAD and produces FADH₂ = 7