Q: Which of the following is the correct overall equation for cellular respiration?

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

Question 1

Which of the following best describes the fluid mosaic model of the plasma membrane?

Accepted Answer

A double layer of phospholipids with proteins floating and moving within the layer.

Question 2

Which process requires the hydrolysis of ATP to move substances against their concentration gradient across the plasma membrane?

Accepted Answer

Active transport

Question 3

A red blood cell placed in a hypotonic solution will:

Accepted Answer

Burst due to water influx

Question 4

Which of the following equations correctly represents the change in free energy ($$\Delta G) of a $$reaction?

Accepted Answer

$$\Delta G = \Delta H - T\Delta S$$

Question 5

Which of the following statements about enzymes is correct?

Accepted Answer

Enzymes lower the activation energy required for a reaction.

Question 6

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

Accepted Answer

2

Question 7

Which of the following is the correct overall equation for cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\ \mathrm{O_2$} ightarrow 6\ \mathrm{CO_2$} + 6\ \mathrm{H_2O} + 	ext{energy}$$

Question 8

In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of:

Accepted Answer

Ethanol, CO$$_2$$, and ATP

Question 9

Which of the following best describes the light reactions of photosynthesis?

Accepted Answer

They split water, release O$$_2$$, and produce ATP and NADPH.

Question 10

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

Accepted Answer

Chlorophyll a

Question 11

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 12

Which checkpoint in the cell cycle is primarily responsible for ensuring that all chromosomes are properly attached to the spindle before anaphase begins?

Accepted Answer

M checkpoint (spindle checkpoint)

Question 13

Which of the following events occurs during meiosis but not mitosis?

Accepted Answer

Pairing of homologous chromosomes and crossing over

Question 14

A diploid cell with 8 chromosomes undergoes meiosis. How many chromosomes will each resulting gamete have?

Accepted Answer

4

Question 15

Which of the following best explains why sexual reproduction results in genetic variation?

Accepted Answer

It involves independent assortment and crossing over during meiosis.

Question 16

Which of the following is an example of an anabolic pathway?

Accepted Answer

Photosynthesis

Question 17

If a cell is placed in a solution with a higher solute concentration than the cell's cytoplasm, what will happen to the cell?

Accepted Answer

It will lose water and shrink.

Question 18

Which of the following statements about the Calvin cycle is correct?

Accepted Answer

It fixes carbon dioxide into organic molecules.

Question 19

Which molecule acts as the final electron acceptor in the electron transport chain of aerobic respiration?

Accepted Answer

O$$_2$$

Question 20

A patient is diagnosed with a genetic disorder that affects the structure of their cell membranes, making them less fluid. Which of the following changes is most likely to restore membrane fluidity?

Accepted Answer

Increasing the proportion of unsaturated fatty acids in the membrane

Core Topics in General Biology: Membranes, Metabolism, Cellular Processes, and Genetics

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