* During aerobic respiration oxygen acts as a. is combined with electrons and pa

Question

* During aerobic respiration oxygen acts as

a. is combined with electrons and passed along an electron transport chain

b. a reducing agent

c. the terminal electron acceptor

d. a coenzyme

* ________ use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon

. a. photoautotrophs

b. photoheterotrophs

c. chemoautotrophs

d. chemoheterotrophs

* Catabolism is

a. the biosynthesis of macromolecules found within cells

b. the sum of metabolism and anabolism

c. the decomposition of organic compounds during metabolism

d. yields energy that is used for cell growth

e. answers (c) and (d) are both correct

Explanation / Answer

* During aerobic respiration oxygen acts as

a. is combined with electrons and passed along an electron transport chain

b. a reducing agent

c. the terminal electron acceptor

d. a coenzyme

Answer: c The terminal electron acceptor

* ________ use electrons from reduced inorganic compounds as a source of energy and CO2 as a source of carbon

. a. photoautotrophs

b. photoheterotrophs

c. chemoautotrophs

d. chemoheterotrophs

Answer: c Chemoautotrophs

* Catabolism is

a. the biosynthesis of macromolecules found within cells

b. the sum of metabolism and anabolism

c. the decomposition of organic compounds during metabolism

d. yields energy that is used for cell growth

e. answers (c) and (d) are both correct

Answer: e answers (c) and (d) are both correct

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