Question Acceptable Answer C 5 Int 2 The process of aerobic respiration in a muscle cell is outlined below. 2012 B Q3 (a) ii, (b) (a) (ii) Name product Y from 1. (b) ATP is formed during respiration and broken down for uses in cells. 1 (i) How many molecules of ATP are formed from each glucose molecule during Stage 1 only? Both 1 and Stage 2? (ii) What two molecules are produced when ATP is broken down? 1 and (iii) State one use of the energy released when ATP is broken down. 1 Question Acceptable Answer Not acceptable Negates Mark 3 (a) ii pyruvic acid/pyruvate 1 (b) i stage 1 = 2/4 1 stage 1 + 2 = 38/36/40
Question Acceptable Answer 5 C Int 2 2012 B Q3 (a) ii, (b) The process of aerobic respiration in a muscle cell is outlined below. (a) (ii) Name product Y from 1. (b) ATP is formed during respiration and broken down for uses in cells. (i) How many molecules of ATP are formed from each glucose molecule during Stage 1 only? Both 1 and Stage 2? 1 (ii) What two molecules are produced when ATP is broken down? and 1 (iii) State one use of the energy released when ATP is broken down. 1 Question Acceptable Answer Not acceptable Negates Mark 3 (a) ii pyruvic acid/pyruvate 1 (b) i stage 1 = 2/4 stage 1 + 2 = 38/36/40 1
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