Q: Which equation correctly represents the hydrolysis of ATP?

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P}_i + \text{energy} $$

Question 1

Which of the following best describes the difference between active and passive transport across a cell membrane?

Accepted Answer

Active transport requires energy input from ATP, while passive transport does not.

Question 2

A red blood cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink due to osmosis.

Question 3

Which equation correctly represents the hydrolysis of ATP?

Accepted Answer

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P}_i + 	ext{energy} $$

Question 4

During cellular respiration, which molecule is oxidized and which is reduced in the overall reaction?

Accepted Answer

Glucose is oxidized and oxygen is reduced.

Question 5

Which stage of cellular respiration produces the most ATP?

Accepted Answer

Oxidative phosphorylation (ETC and chemiosmosis)

Question 6

If oxygen is not present during cellular respiration, what happens to pyruvate in animal cells?

Accepted Answer

It is converted to lactate through fermentation.

Question 7

Which of the following is NOT a function of membrane proteins?

Accepted Answer

Synthesizing ATP from ADP and phosphate.

Question 8

Which process is best described by the movement of water across a selectively permeable membrane from an area of low solute concentration to high solute concentration?

Accepted Answer

Osmosis

Question 9

Which of the following best explains why plant cells do not burst when placed in a hypotonic solution?

Accepted Answer

The cell wall provides structural support and prevents lysis.

Question 10

Which of the following is an example of feedback inhibition in enzyme regulation?

Accepted Answer

The end product of a metabolic pathway binds to the first enzyme and decreases its activity.

Question 11

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

Accepted Answer

$$ 2 $$

Question 12

Which of the following correctly matches the location of the citric acid cycle in eukaryotic cells?

Accepted Answer

Mitochondrial matrix

Question 13

Which pigment is primarily responsible for absorbing light energy during photosynthesis?

Accepted Answer

Chlorophyll a

Question 14

In the light reactions of photosynthesis, what is the final electron acceptor?

Accepted Answer

NADP$$^+$$

Question 15

Which of the following is a correct sequence of events in the Calvin cycle?

Accepted Answer

Carbon fixation, reduction, release of G3P, regeneration of RuBP

Question 16

Which of the following statements about exergonic and endergonic reactions is correct?

Accepted Answer

Exergonic reactions release energy, while endergonic reactions require energy input.

Question 17

Which of the following is true about competitive inhibition of enzymes?

Accepted Answer

The inhibitor binds to the active site, preventing substrate binding.

Question 18

During oxidative phosphorylation, ATP is produced by which process?

Accepted Answer

Chemiosmosis

Question 19

Which of the following best describes the role of RuBP in the Calvin cycle?

Accepted Answer

It acts as the CO$$_2$$ acceptor during carbon fixation.

Question 20

A patient is diagnosed with a mitochondrial disorder that impairs the electron transport chain. Which cellular process will be most directly affected?

Accepted Answer

ATP synthesis via oxidative phosphorylation

Cell Structure, Cellular Respiration, and Photosynthesis: Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard