Q: Which of the following equations correctly represents the overall process of aerobic cellular respiration?

$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{ATP}$$

Question 1

Which of the following statements best describes the relationship between photosynthesis and cellular respiration in the context of an ecosystem?

Accepted Answer

Photosynthesis converts carbon dioxide and water into glucose and oxygen, which are then used in cellular respiration to produce ATP, carbon dioxide, and water.

Question 2

During cellular respiration, which molecule acts as the final electron acceptor in the electron transport chain?

Accepted Answer

Oxygen ($$O_2)$$

Question 3

Which of the following equations correctly represents the overall process of aerobic cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{ATP}$$

Question 4

A muscle cell is using up ATP rapidly during exercise. Which process is directly responsible for regenerating ATP from ADP and inorganic phosphate?

Accepted Answer

Cellular respiration

Question 5

Which of the following best explains why plant cells perform both photosynthesis and cellular respiration?

Accepted Answer

Photosynthesis stores energy in glucose, while cellular respiration releases that energy for cellular work.

Question 6

In glycolysis, what is the net gain of ATP molecules per molecule of glucose?

Accepted Answer

2

Question 7

Which of the following statements about redox reactions in cellular respiration is correct?

Accepted Answer

Glucose is oxidized and oxygen is reduced.

Question 8

During the energy-investment phase of glycolysis, which of the following occurs?

Accepted Answer

ATP is consumed to phosphorylate glucose intermediates.

Question 9

Which of the following is a correct description of substrate-level phosphorylation?

Accepted Answer

A phosphate group is transferred directly from a substrate molecule to ADP to form ATP.

Question 10

A patient is unable to efficiently use oxygen in their cells. Which stage of cellular respiration would be most directly affected?

Accepted Answer

Oxidative phosphorylation

Question 11

Which of the following best describes the role of NADH in cellular respiration?

Accepted Answer

It acts as an electron shuttle, carrying electrons to the electron transport chain.

Question 12

If a cell is deprived of oxygen, which process can still continue to generate ATP?

Accepted Answer

Glycolysis

Question 13

Which of the following is a correct pairing of a process and its location in eukaryotic cells?

Accepted Answer

Glycolysis – cytoplasm

Question 14

A marathon runner relies on cellular respiration for energy. Which of the following best explains why only about 34% of the energy in glucose is captured as ATP?

Accepted Answer

The rest of the energy is lost as heat during the process.

Question 15

Which of the following is NOT an input for the process of glycolysis?

Accepted Answer

Oxygen ($$O_2)$$

Question 16

During the oxidation of glucose in cellular respiration, which molecule is reduced?

Accepted Answer

Oxygen ($$O_2)$$

Question 17

Which of the following best describes the main purpose of cellular respiration?

Accepted Answer

To convert the chemical energy in glucose into ATP for cellular work.

Question 18

A person is performing intense exercise and their muscle cells begin to run low on oxygen. Which process will their cells rely on to continue producing ATP?

Accepted Answer

Fermentation

Question 19

Which of the following is a product of glycolysis?

Accepted Answer

Pyruvate

Question 20

Which of the following best explains why ATP is often compared to a rechargeable battery in the cell?

Accepted Answer

ATP can be regenerated from ADP and phosphate using energy from cellular respiration.

Ch 6: How Cells Harvest Chemical Energy

Guida di studio - Domande di pratica

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