$$\text{pH} = -\log_{10} [\text{H}^+]$$

Question 1

Which of the following best describes negative feedback in homeostasis?

Accepted Answer

A process where the response reverses the original stimulus, such as regulation of blood glucose levels.

Question 2

A patient is lying face up on an examination table. Which anatomical position term best describes this orientation?

Accepted Answer

Supine

Question 3

Which directional term describes the relationship between the heart and the lungs?

Accepted Answer

The heart is medial to the lungs.

Question 4

Which abdominal region is located directly below the umbilical region?

Accepted Answer

Hypogastric (pubic) region

Question 5

Which of the following is the correct formula for calculating pH?

Accepted Answer

$$	ext{pH} = -\log_{10} [	ext{H}^+]$$

Question 6

Which biological molecule is correctly matched with its monomer?

Accepted Answer

Carbohydrates: Monosaccharides

Question 7

A solution is made by dissolving 10 g of NaCl in 100 mL of water. In this scenario, which is the solute and which is the solvent?

Accepted Answer

NaCl is the solute; water is the solvent.

Question 8

Which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 9

A cell placed in a hypotonic solution will:

Accepted Answer

Swell and possibly burst due to water influx.

Question 10

Which process requires energy input from the cell and moves substances against their concentration gradient?

Accepted Answer

Active transport

Question 11

During protein synthesis, which process involves the creation of mRNA from a DNA template?

Accepted Answer

Transcription

Question 12

Which cell junction allows direct communication between adjacent cells by permitting ions and small molecules to pass?

Accepted Answer

Gap junctions

Question 13

Which tissue type is specialized for contraction and movement?

Accepted Answer

Muscle tissue

Question 14

Which layer of the skin contains blood vessels, nerves, and most accessory structures such as hair follicles and glands?

Accepted Answer

Dermis

Question 15

A patient suffers a burn covering the entire left arm and anterior trunk. Using the rule of nines, what percentage of the body surface is affected?

Accepted Answer

27%

Question 16

Which bone cell is responsible for breaking down bone matrix during bone remodeling?

Accepted Answer

Osteoclast

Question 17

Which hormone increases blood calcium levels by stimulating osteoclast activity?

Accepted Answer

Parathyroid hormone (PtH)

Question 18

Which type of joint allows the greatest range of movement?

Accepted Answer

Diarthrosis (synovial joint)

Question 19

Which structure in the knee joint acts as a shock absorber between the femur and tibia?

Accepted Answer

Meniscus

Question 20

A patient with osteoporosis is at increased risk for which type of fracture, and what is the underlying cause?

Accepted Answer

Comminuted fracture; decreased bone density due to increased osteoclast activity

Comprehensive Study Guide: Introduction to Anatomy and Physiology (Chapters 1–9)

Study Guide - Practice Questions