An Overview of Respiration and Fermentation - Foundation Figure 5.11 Compare and

Question

An Overview of Respiration and Fermentation - Foundation Figure 5.11 Compare and contrast three metabolic pathways by choosing whether the statement applies to anaerobic respiration Check all that apply. View Available Hint(s) Can generate ATP in the absence of O2 End products may inclu e lactic acid or ethanol The coenzyme NAD+ plays an important role in the pathway Between 2 and 38 ATP are produced per molecule of glucose input A total of 38 ATP are produced per molecule of glucose input. Process involves the Krebs cycle Process includes glycolysis Process involves electron transport and chemiosmosis End products are CO2 and H20 A total of 2 ATP are produced per molecule of glucose input Much or most of the ATP produced is produced by oxidative phosphorylation.

Explanation / Answer

First statement applies yes aerobic respiration generates ATP in the absence of oxygen it generates 2 ATP but in the case of aerobic respiration the number of ATP formed are 36 to 38 ATP.(According to some books 34ATP)

2.The end products of anaerobic respitation are lactic acid in the case of muscles and alcohol pyruvate in the presence of pyruvate decarboxylase converts into and aldehyde and in the presence of the enzyme alcoholdehydrgenase converts into alcohol, on the other hand in the presence of lactate dehydrogenase converts to lactic acid. In the case of Aerobic respiration pyruvate enters into link reaction and krebs cycle finally Etc where oxygen is the ultimate electron acceptor.

3.IT does play an important role as NAD pool must be developed to reduce and form NADH.

4.In anaerobic respiration the ATP formed are 2 ATP only and 36 to 38 formed in aerobic respiration.(34 According to some books).

5.Anaerobic respiration doesnot invove krebs cycle and aerobic respiration involves krebs cycle.

6.Glycolysis is a common pathway for both aerobic and anaerobic process.

7.In anerobic respiration electron transport chain and phosphorylation is not present but occurs in the case of aerobic respiration.

8.End products are CO2 and H2O in aerobic respiration where as in anaerobic fermentation specially alcoholic fermentation ethylalcohol and CO2 and 2 ATP are  end products.

9.2ATP are formed in the anaerobic respiration during glycolysis in aerobic 34 to 36 ATP are formed.

10.In case of aerobic most ATP are through oxidative phosphorylation in Anaerobic it is in Glycolysis.

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