Consider the following statements comparing fermentation and aerobic respiration: (1) Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO 2 and H 2 O. (2) In fermentation there is a net gain of only one molecules of ATP for each molecule of glucose, whereas many molecules of ATP are generated under aerobic conditions. (3) NADH is oxidised to NAD+ rather quickly in fermentation, however the reaction is very slow in case of aerobic respiration. Which of the statement(s) given above is/are in correct?

Question

Consider the following statements comparing fermentation and aerobic respiration: (1) Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO 2 and H 2 O. (2) In fermentation there is a net gain of only one molecules of ATP for each molecule of glucose, whereas many molecules of ATP are generated under aerobic conditions. (3) NADH is oxidised to NAD+ rather quickly in fermentation, however the reaction is very slow in case of aerobic respiration. Which of the statement(s) given above is/are in correct? (A) (1) only (B) (1) and (2) only (C) (2) and (3) only (D) None of the above

Tardigrade Admin · Accepted Answer

Comparison between fermentation and aerobic respiration.
(1) Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to

C O_{2}

and

H_{2} O

.
(2) In fermentation there is a net gain of only two molecules of ATP for each molecule of glucose degraded to pyruivc acid whereas many more molecules of ATP are generated under aerobic conditions.
(3) NADH is oxidised to NAD+ rather slowly in fermentation, however the reaction is very vigorous in case of aerobic respiration.