(31. What is the purpose of cellular respiration/ a. To get O2 into our bodies a

Question

(31. What is the purpose of cellular respiration/

a. To get O2 into our bodies and to get CO2 out of our bodies

b. To use the energy of sunlight to synthesize sugars

c. To make ATP to power cellular activities d. To hydrolyze ATP

(36. Which of the following accurately describes a distinction between lactic acid fermentation and alcoholic (ethanol) fermentation?

a. Lactic acid fermentation occurs in prokaryotes, whereas alcoholic (ethanol) fermentation occurs in eukaryotes

b. The final electron acceptor in lactic acid fermentation is pyruvate; the final electron acceptor in alcoholic (ethanol) fermentation is acetaldehyde

c. In lactic acid fermentation, NADH is produced by glycolysis; in alcoholic (ethanol) fermentation, NADH is produced by the Krebs cycle

d. In lactic acid fermentation, cell use CO2 in place of oxygen; in alcoholic (ethanol) fermentation, cells use SO4

(37. Which pathway is see in both fermentation and aerobic respiration?

a. Krebs cycle

b. Electron transport

c. Glycolysis d. Pyruvate oxidation

(50. How many molecules of carbon dioxide (CO2) would be produced with 5 turns of the cirtic acid cycle?

a. 2

b. 5

c. 10

d. 12

e. 60

Explanation / Answer

31. What is the purpose of cellular respiration
The answer is c. To make ATP to power cellular activities

The cells depends on respiration for energy. During respiration the glucose undergores oxidation and converts the energy to make ATPs.

36. Which of the following accurately describes a distinction between lactic acid fermentation and alcoholic (ethanol) fermentation?
The answer is b. The final electron acceptor in lactic acid fermentation is pyruvate; the final electron acceptor in alcoholic (ethanol) fermentation is acetaldehyde

Find the below image for explanation

37. Which pathway is see in both fermentation and aerobic respiration?
The answer is c. Glycolysis

As the glycolysis is the first step in fermentation and respiration it is reffered as fundamental respiration. During glycolysis, the glucose truns in to pyruvic acid molecules. This pyruvic acid truns in to acid or alcohol during fermentation or this pyruvic acid involves in TCA cycle in respiration.

50. How many molecules of carbon dioxide (CO2) would be produced with 5 turns of the cirtic acid cycle?
The answer is c. 10

As in each TCA cycle two CO2 will be produced, for five cycles total 10 will be released.

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