Microbial Metabolism

Which of the following correctly describes Anaerobic respiration?

• a series of reactions that convert glucose to CO2 and allows the cell to recover significant amounts of energy

• utilizes glycolysis, the krebs cycle, and the electron transport chain (respiratory)

• used by strictly anaerobic organisms and others who are able to metabolize with or without oxygen

• uses NO-3, SO42-, CO33- (nitrate, sulfate, carbonate) and other oxidized inorganic compounds as terminal electron acceptors

• organic compounds are terminal electron acceptors

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

What is the terminal electron and hydrogen acceptor for aerobic respiration?

• free oxygen

• nitrate, sulfate, carbonate, and other oxidized inorganic compounds

• organic compounds

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

What is the terminal electron and hydrogen acceptor for anaerobic respiration?

• free oxygen

• nitrate, sulfate, carbonate, and other oxidized inorganic compounds

• organic compounds

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NGSS.HS-LS2-3

What is the terminal electron and hydrogen acceptor for fermentation?

• free oxygen

• nitrate, sulfate, carbonate, and other oxidized inorganic compounds

• organic compounds

is glycolysis always going to be used in respiration in bacteria?

• Yes.

• Sometimes.

• Only in certain bacteria.

• No

Answer explanation

can use proteins, lipids, etc

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NGSS.HS-LS1-7

How are noncarbohydrate compounds catabolized?

• They are converted into glucose through glycolysis

• They are broken down into smaller molecules through the Krebs cycle

• They are used as terminal electron acceptors in the electron transport chain

• They are converted into ATP through fermentation

Which kind of metabolism requires the input of energy (endergonic)?

• anabolism

• catabolism

Which of the following processes is primarily involved in the breakdown of glucose to pyruvate in microbial metabolism?

• Glycolysis

• Krebs Cycle

• Electron Transport Chain

• Fermentation

In microbial metabolism, what is the main purpose of the Krebs Cycle?

• To produce ATP directly

• To generate NADH and FADH2 for the electron transport chain

• To convert pyruvate into glucose

• To break down fatty acids

Which of the following is a common electron acceptor in anaerobic microbial metabolism?

• Oxygen

• Nitrate

• Glucose

• Water

Tags

NGSS.HS-LS2-3