Page 52 - Teknik Menjawab Soalan PSPM Biologi

(a) In glycolysis, substrate level
phosphorylation through CALCULATION OF 38 ATP

(i) Oxidation of Glyceraldehyde-3-
phosphate (3C) to pyruvate (3C) FROM 1 MOLECULE OF
= _2_x_2_ ATP
= ___4___ ATP GLUCOSE

+
(ii) Oxidation of 2(NADH + H ) in
the electron transport chain
(oxidative phosphorylation)
= _2_x_3_ ATP
= ___6___ ATP (b) In Krebs cycle (including link
reaction), for 1 pyruvate
(iii) Total ATP yield
= __10___ ATP (i) From conversion of 1 GTP
(substrate level
Minus; phosphorylation)
(iv) ATP used in the = __1__ ATP
phosphorylation of glucose (6C) +
to fructose-1,6-bisphosphate (ii) Oxidation of 4 (NADH+H ) in
the electron transport chain.
(6C) oxidative phosphorylation yield
= ___2___ ATP = _4_x_3_ ATP
= ___12__ ATP
(v) Net ATP yield
= ___8___ ATP (iii) Oxidation of 1 FADH2 in the
electron transport chain
oxidative phosphorylation yield
= _1_x_2_ ATP
= ___2___ ATP

(iv) Total ATP molecule for each
pyruvate molecule
= ___15__ ATP

Total ATP molecule for each glucose (6C) molecule = _2_x_15_ ATP = 30 ATP
Overall ATP production from the oxidation of each glucose molecule in aerobic
respiration
= 38 ATP