Question 1

During cellular respiration, how do cells capture the energy released from glucose?

Accepted Answer

By synthesizing ATP molecules that store and transfer energy

Question 2

During the energy conversions of photosynthesis and cellular respiration, some energy is always:

Accepted Answer

Lost as heat according to the second law of thermodynamics

Question 3

A kilocalorie (kcal) is scientifically defined as the amount of heat required to:

Accepted Answer

Raise the temperature of 1 kilogram of water by 1°C

Question 4

During cellular respiration, the energy in glucose is:

Accepted Answer

Transferred in a stepwise fashion to electron carriers such as NADH and FADH2

Question 5

Oxidation is the ________, and reduction is the ________.

Accepted Answer

loss of electrons; gain of electrons

Question 6

Which statement regarding the movement of electrons during cellular respiration is true?

Accepted Answer

Oxygen acts as the final electron acceptor, forming water

Question 7

As a result of glycolysis, there is a net gain of how many ATP molecules per glucose?

Accepted Answer

$$2$$

Question 8

Photoautotrophs are organisms that:

Accepted Answer

Use light energy to synthesize organic compounds from inorganic substances

Question 9

The oxygen released into the air as a product of photosynthesis comes from:

Accepted Answer

Water ($$\mathrm{H_2O})$$

Question 10

Which molecule is a reactant in the process of photosynthesis?

Accepted Answer

Carbon dioxide ($$\mathrm{CO_2$})$$

Question 11

What is the source of energy that provides the boost for electrons during photosynthesis?

Accepted Answer

Photons (light energy)

Question 12

Which statement comparing photosynthesis and cellular respiration is FALSE?

Accepted Answer

Photosynthesis produces ATP that is exported to power cellular work throughout the plant

Question 13

Which color of visible light contributes the least energy to photosynthesis in most plants?

Accepted Answer

Green

Question 14

A packet of light energy is called a:

Accepted Answer

Photon

Question 15

Which statement regarding sexual and asexual reproduction is true?

Accepted Answer

Sexual reproduction increases genetic diversity in a population

Question 16

Which statement regarding cell division is FALSE?

Accepted Answer

Prokaryotes rarely undergo cell division

Question 17

Sister chromatids are:

Accepted Answer

Identical copies of a chromosome joined at the centromere

Question 18

Which event occurs during interphase of the cell cycle?

Accepted Answer

DNA replication

Question 19

A benign tumor differs from a malignant tumor in that a benign tumor:

Accepted Answer

Is composed of cells that remain at the original site

Question 20

Nondisjunction occurs when:

Accepted Answer

Sister chromatids fail to separate properly during meiosis or mitosis

Question 21

Which statement regarding mitosis and meiosis is true?

Accepted Answer

Sister chromatids separate during anaphase of mitosis and anaphase II of meiosis

Step-by-Step Guidance for College Biology Study Questions

Study Guide - Practice Questions