Question 1

Which of the following best explains the relationship between anatomy and physiology?

Accepted Answer

Anatomy focuses on structure, and physiology focuses on function; structure determines function.

Question 2

A patient is unable to maintain a stable internal temperature after suffering hypothalamic damage. Which homeostatic control system component is most likely impaired?

Accepted Answer

Control center

Question 3

Which of the following best describes the difference between negative and positive feedback mechanisms?

Accepted Answer

Negative feedback opposes deviation from the set point, while positive feedback amplifies the response.

Question 4

A solution has a hydrogen ion concentration of $$[H^+] = 1 	imes 10$$^{-7}$$ \ \mathrm{mol/L}. $$What is its pH, and is it acidic, basic, or neutral?

Accepted Answer

pH = 7; neutral

Question 5

Which of the following best describes the role of ATP in cellular metabolism?

Accepted Answer

ATP provides energy for cellular processes by releasing a phosphate group to become ADP.

Question 6

A red blood cell is placed in a solution and swells until it bursts. Which of the following best describes the solution?

Accepted Answer

Hypotonic

Question 7

Which of the following statements about facilitated diffusion is correct?

Accepted Answer

It uses membrane proteins to move molecules down their concentration gradient without energy input.

Question 8

Which of the following best describes the function of the sodium-potassium pump ($$\mathrm{Na^+/K^+}$$ ATPase) in maintaining resting membrane potential?

Accepted Answer

It pumps three sodium ions out and two potassium ions into the cell, using ATP.

Question 9

Which of the following tissues is specialized for rapid communication and control of body functions?

Accepted Answer

Nervous tissue

Question 10

A biopsy reveals tissue with multiple layers of flat cells, with the surface cells lacking nuclei. Which tissue type is this most likely to be?

Accepted Answer

Stratified squamous epithelium, keratinized

Question 11

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones directly into the bloodstream; exocrine glands secrete substances onto epithelial surfaces via ducts.

Question 12

Which pigment is primarily responsible for the brown coloration of human skin and provides protection against UV radiation?

Accepted Answer

Melanin

Question 13

A patient with a genetic defect cannot produce collagen. Which tissue type would be most directly affected?

Accepted Answer

Connective tissue

Question 14

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

Accepted Answer

Storage of calcium and phosphate ions

Question 15

Which process describes the formation of most long bones in the body?

Accepted Answer

Endochondral ossification

Question 16

A patient has a blood calcium level of $$6.5 \ \mathrm{mg/dL} ($$normal: $$8.5-10.5 \ \mathrm{mg/dL}). $$Which hormone is most likely to be secreted in response?

Accepted Answer

Parathyroid hormone (PTH)

Question 17

Which of the following best describes the difference between compact and spongy bone?

Accepted Answer

Compact bone is dense and forms the outer layer of bones; spongy bone is porous and found at the ends of long bones.

Question 18

Which type of synovial joint allows movement in multiple axes, such as the shoulder joint?

Accepted Answer

Ball-and-socket joint

Question 19

A cell is placed in a solution containing $$300 \ \mathrm{mOsm/L}$$ non-penetrating solutes and $$100 \ \mathrm{mOsm/L}$$ penetrating solutes. The cell's cytoplasm contains $$300 \ \mathrm{mOsm/L}$$ non-penetrating solutes. What will happen to the cell?

Accepted Answer

The cell will remain the same size (isotonic solution).

Question 20

Which of the following best describes the function of serous membranes?

Accepted Answer

They cover organs and line body cavities, reducing friction between moving organs.

ANP Midterm Study Guide: Step-by-Step Guidance for Key Concepts

Study Guide - Practice Questions

Study Guide - Flashcards