Question

(1 of 5) Match the P/O ratio with the number of subunits in the c-ring: - D2.50 ATP/NADH A. 10 subunits A D 2.30 ATP/NADH B. 12 subunits B 2.00 ATP/NADH C. 14 subunits -- D 1.76 ATP/NADH D. 15 subunits - D 1.67 ATP/NADH E. 9 subunits

Answer 1

Ans -

The correct match for this question is -

1) 2.5 ATP/NADH --------------- D) 15 subunit

2) 2.30 ATP/NADH----------------C) 14 subunit

3) 2.00 ATP/NADH----------------- B )12 subunit

4) 1.76 ATP /NADH ---------------- A) 10 subunit

5) 1.67 ATP / NADH -----------------E) 9 subunit

Explanation -

P/O ratio - the no. Of phosphate form ATP per oxygen atom that is 2 electron how much ATP formed.

ATP synthesis need a enzyme called ATP synthatase and this enzyme consist of many subunit in which one is c - subunit .

Rotation in subunit occur to synthesize ATP.

If no. Of c subunit for 1ATP/NADH for P/O ratio is 6.

Then 1 ) for 2.5 ATP/ NADH = 6 × 2.5 = 15

2 ) for 2.3 ATP/ NADH = 6× 2.3 = 13.8 almost 14

3) for 2 ATP/NADH = 6×2 = 12

4) FOR 1.76 ATP/ NADH almost 10 subunit

5) FOR 1.67 ATP / NADH almost 9 subunit