Q: Which of the following is a correct sequence for the flow of electrons during aerobic respiration?

$$\text{Glucose} \rightarrow \text{NADH/FADH}_2 \rightarrow \text{Electron Transport Chain} \rightarrow \text{O}_2$$

Question 1

Which of the following best describes the role of Rubisco in photosynthesis?

Accepted Answer

It catalyzes the fixation of carbon dioxide into organic molecules during the Calvin cycle.

Question 2

A plant is exposed to intense sunlight and high temperatures. Which adaptation would most likely help it minimize photorespiration and maximize sugar production?

Accepted Answer

Using C4 photosynthesis to concentrate $$\mathrm{CO_2$}$$ around Rubisco.

Question 3

During which stage of cellular respiration is the majority of ATP produced, and by what mechanism?

Accepted Answer

Oxidative phosphorylation (ETC); oxidative phosphorylation

Question 4

Which of the following statements about chemiosmosis is correct?

Accepted Answer

It involves the movement of hydrogen ions across a membrane to drive ATP synthesis.

Question 5

A mutation causes a plant to lack Photosystem II. Which of the following would this plant be unable to do?

Accepted Answer

Split water to release oxygen.

Question 6

Which of the following best explains why CAM plants are well-adapted to arid environments?

Accepted Answer

They store $$\mathrm{CO_2$} at $$night and use it during the day, reducing water loss.

Question 7

Which of the following is a correct sequence for the flow of electrons during aerobic respiration?

Accepted Answer

$$	ext{Glucose} ightarrow 	ext{NADH/FADH}_2 ightarrow 	ext{Electron Transport Chain} ightarrow 	ext{O}_2$$

Question 8

Which of the following best describes the difference between linear and cyclic electron flow in the light reactions of photosynthesis?

Accepted Answer

Linear electron flow produces both ATP and NADPH, while cyclic electron flow produces only extra ATP.

Question 9

Which of the following is NOT a product of glycolysis?

Accepted Answer

FADH$$_2$$

Question 10

A facultative anaerobe is an organism that:

Accepted Answer

Can survive with or without oxygen.

Question 11

Which of the following best explains the benefit of having multiple photosynthetic pigments such as chlorophyll a, chlorophyll b, and carotenoids?

Accepted Answer

They allow plants to absorb a broader range of light wavelengths for photosynthesis.

Question 12

Which of the following statements about substrate-level phosphorylation is correct?

Accepted Answer

It directly transfers a phosphate group to ADP to form ATP.

Question 13

Which process in cellular respiration does NOT directly produce ATP?

Accepted Answer

Pyruvate oxidation

Question 14

Which of the following best describes the function of phosphofructokinase in cellular respiration?

Accepted Answer

It regulates the rate of glycolysis based on the cell's energy needs.

Question 15

Which of the following is a correct description of oxidation and reduction?

Accepted Answer

Oxidation is the loss of electrons; reduction is the gain of electrons.

Question 16

Which of the following is true about fermentation?

Accepted Answer

It regenerates NAD+ so glycolysis can continue in the absence of oxygen.

Question 17

Which of the following is the correct order of events in the light reactions of photosynthesis?

Accepted Answer

Photosystem II absorbs light, water is split, electrons flow to Photosystem I, NADP+ is reduced to NADPH.

Question 18

Which of the following is a product of the citric acid cycle?

Accepted Answer

NADH

Question 19

Which of the following statements about stomata is correct?

Accepted Answer

They are tiny openings in leaves that allow gas exchange.

Question 20

Which of the following best describes the main difference between aerobic and anaerobic respiration?

Accepted Answer

Aerobic respiration uses oxygen as the final electron acceptor, while anaerobic respiration uses a different molecule.

Photosynthesis and Respiration Study Guide – General Biology

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드