Q: Which of the following equations correctly represents the calculation of atomic mass number?

$$\text{Atomic mass number} = \text{Number of protons} + \text{Number of neutrons}$$

Q: Which of the following is the correct formula for calculating the number of neutrons in an atom?

$$\text{Number of neutrons} = \text{Mass number} - \text{Atomic number}$$

Question 1

Which of the following best describes the difference between anatomy and physiology?

Accepted Answer

Anatomy studies the structure of body parts, while physiology studies how body parts work and carry out life-sustaining activities.

Question 2

A patient has a disorder that prevents their skin from effectively separating their internal environment from the external environment. Which necessary life function is most directly compromised?

Accepted Answer

Maintaining boundaries

Question 3

Which organ system is primarily responsible for synthesizing vitamin D and protecting deeper tissues from injury?

Accepted Answer

Integumentary system

Question 4

A person is unable to regulate their blood glucose levels, resulting in frequent episodes of hyperglycemia and hypoglycemia. This is an example of:

Accepted Answer

Homeostatic imbalance

Question 5

Which of the following is an example of negative feedback in homeostatic control?

Accepted Answer

The output shifts the original effect of the stimulus or reduces its intensity.

Question 6

Which of the following equations correctly represents the calculation of atomic mass number?

Accepted Answer

$$	ext{Atomic mass number} = 	ext{Number of protons} + 	ext{Number of neutrons}$$

Question 7

Which of the following elements makes up the largest percentage of the human body by mass?

Accepted Answer

Oxygen

Question 8

A solution is defined as:

Accepted Answer

A homogeneous mixture where particles are evenly distributed throughout

Question 9

Which type of chemical bond is formed by the sharing of two or more valence shell electrons between two atoms?

Accepted Answer

Covalent bond

Question 10

A molecule of water ($$H_2O) is $$considered a polar covalent molecule because:

Accepted Answer

Oxygen is more electronegative, creating a partial negative charge on oxygen and a partial positive charge on hydrogen

Question 11

Which organ system is responsible for eliminating nitrogenous wastes from the body and regulating water, electrolyte, and acid-base balance?

Accepted Answer

Urinary system

Question 12

If a person is unable to respond to stimuli, which necessary life function is most directly affected?

Accepted Answer

Responsiveness

Question 13

Which of the following best describes the role of the cardiovascular system?

Accepted Answer

It transports blood, which carries oxygen, carbon dioxide, nutrients, and wastes.

Question 14

Which of the following is true regarding energy conversions in the human body?

Accepted Answer

Energy can be converted from one form to another, but some energy is always lost as heat.

Question 15

A patient has a blood pH that is consistently outside the normal range. Which survival need is most directly affected?

Accepted Answer

Homeostasis

Question 16

Which of the following statements about isotopes is correct?

Accepted Answer

Isotopes are structural variations of the same element with different numbers of neutrons.

Question 17

Which of the following best describes the function of the lymphatic system?

Accepted Answer

It removes debris and returns leaked fluid to blood; immune response mounts attack against foreign substances.

Question 18

Which of the following is the correct formula for calculating the number of neutrons in an atom?

Accepted Answer

$$	ext{Number of neutrons} = 	ext{Mass number} - 	ext{Atomic number}$$

Question 19

A molecule of glucose ($$C_6H_{12}O_6$) is classified as which of the following?

Accepted Answer

A compound

Question 20

Which organ system is responsible for producing hormones that regulate processes such as growth, reproduction, and metabolism?

Accepted Answer

Endocrine system

Foundations of Anatomy & Physiology: Structural Organization, Life Functions, Chemistry, and Biochemistry

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