$$\text{Sugar} + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O} + \text{energy}$$

Question 1

Which of the following best describes the overall chemical equation for cellular respiration?

Accepted Answer

$$	ext{Sugar} + 	ext{O}_2 ightarrow 	ext{CO}_2 + 	ext{H}_2	ext{O} + 	ext{energy}$$

Question 2

During photosynthesis, plants convert energy from the sun into which form of energy stored in glucose molecules?

Accepted Answer

Potential energy

Question 3

Why does cellular respiration produce less weight in carbon dioxide than the original glucose molecule?

Accepted Answer

Because water is a smaller molecule than carbon dioxide

Question 4

Which process is responsible for coupling endergonic and exergonic reactions in cells?

Accepted Answer

ATP hydrolysis

Question 5

Which of the following is TRUE about ATP in cellular respiration?

Accepted Answer

Each ATP molecule is cycled more than once every minute

Question 6

Which stage of cellular respiration involves substrate-level phosphorylation?

Accepted Answer

Glycolysis

Question 7

What is the main reason fermentation is considered less efficient than aerobic respiration?

Accepted Answer

Fermentation produces much less ATP per glucose molecule

Question 8

Which molecule acts as the final electron acceptor in aerobic cellular respiration?

Accepted Answer

Oxygen ($$	ext{O}_2)$$

Question 9

In the electron transport chain, the movement of electrons is coupled to the transport of which ion across the membrane?

Accepted Answer

Hydrogen ions ($$	ext{H}^+)$$

Question 10

Which of the following best explains why ATP is considered 'unstable'?

Accepted Answer

The high-energy phosphate bonds are easily broken, releasing energy

Question 11

Which process is the reverse of cellular respiration in terms of its overall chemical equation?

Accepted Answer

Photosynthesis

Question 12

Which of the following is a real-world example of an organism using an alternate electron acceptor in respiration?

Accepted Answer

Bacteria in deep-sea vents using sulfate instead of oxygen

Question 13

Which interconnected processes are involved in cellular respiration?

Accepted Answer

Glycolysis, pyruvate processing, citric acid cycle, electron transport chain

Question 14

If a cell is deprived of oxygen, which process will be most affected?

Accepted Answer

Electron transport chain

Question 15

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

Accepted Answer

Redox reactions allow cells to release energy in a controlled manner

Question 16

How many ATP molecules are produced per glucose molecule during cellular respiration under aerobic conditions?

Accepted Answer

29

Question 17

Which process in cellular respiration directly produces carbon dioxide ($$	ext{CO}_2$$)?

Accepted Answer

Citric acid cycle

Question 18

Which of the following best describes the role of NADH and FADH2 in cellular respiration?

Accepted Answer

They carry electrons to the electron transport chain

Question 19

Which of the following is an example of energy conversion in cellular respiration?

Accepted Answer

Chemical energy in glucose is converted to ATP

Question 20

A patient with a genetic defect in oxidative phosphorylation would most likely have problems with which cellular process?

Accepted Answer

Producing ATP from the electron transport chain

Cellular Respiration and Energy Processing: Study Notes

스터디 가이드 - 연습 문제