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

Question 1

Which principle explains why the structure of a body part is directly related to its function?

Accepted Answer

Principle of complementarity of structure and function

Question 2

A patient has a disease that affects the cellular level of organization. Which of the following is most likely to be directly impaired?

Accepted Answer

The ability of cells to carry out basic life processes

Question 3

Which of the following is NOT considered a necessary life function for humans?

Accepted Answer

Photosynthesis

Question 4

A person is exposed to cold temperatures, causing their body temperature to drop. Which homeostatic mechanism will most likely be activated?

Accepted Answer

Negative feedback to increase heat production

Question 5

Which of the following best describes the difference between a compound and a mixture?

Accepted Answer

Mixtures can be separated by physical means, compounds by chemical means

Question 6

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 7

If an atom loses an electron, what type of ion does it become?

Accepted Answer

Cation

Question 8

Which of the following is a survival need for humans?

Accepted Answer

Atmospheric pressure within a specific range

Question 9

A chemical equation is balanced when:

Accepted Answer

The number of atoms of each element is the same on both sides of the equation

Question 10

Which organ system is primarily responsible for transporting nutrients, gases, and wastes throughout the body?

Accepted Answer

Cardiovascular system

Question 11

Which of the following best illustrates the concept of negative feedback in homeostasis?

Accepted Answer

Sweating increases as body temperature rises, cooling the body

Question 12

Which of the following is true about isotopes?

Accepted Answer

Isotopes have different numbers of neutrons

Question 13

Which equation correctly represents the conversion of chemical energy in the body?

Accepted Answer

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

Question 14

Which of the following best describes a hydrogen bond?

Accepted Answer

A weak attraction between a hydrogen atom and an electronegative atom

Question 15

Which of the following is an example of a synthesis reaction in the body?

Accepted Answer

$$\mathrm{A} + \mathrm{B} \rightarrow \mathrm{AB}$$

Question 16

A solution with a pH of 7.4 is considered:

Accepted Answer

Neutral

Question 17

Which of the following best describes the role of electrons in chemical bonding?

Accepted Answer

Electrons in the outermost shell (valence electrons) determine bonding

Question 18

Which of the following is a function of the muscular system?

Accepted Answer

Producing movement and heat

Question 19

A mixture in which large particles settle out of solution is called:

Accepted Answer

Suspension

Question 20

Which of the following best explains why chemical reactions in the body are often reversible?

Accepted Answer

Because products can react to form the original reactants

Anatomy & Physiology: Foundational Concepts and Basic Chemistry

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