Question 1

Which of the following best describes the relationship between structure and function in anatomy and physiology?

Accepted Answer

Structure determines function, and function can also influence structure.

Question 2

A patient is experiencing difficulty with nutrient absorption in the small intestine. Which necessary life function is most directly impaired?

Accepted Answer

Nutrient intake and digestion

Question 3

Which of the following is an example of a positive feedback mechanism in the human body?

Accepted Answer

Blood clotting after injury

Question 4

A solution has a pH of 5. Compared to a solution with a pH of 7, how many times more protons (H⁺ ions) does it contain?

Accepted Answer

It contains $$10^2$$ times more protons.

Question 5

Which of the following best explains why water is considered vital for life?

Accepted Answer

Water's polarity enables it to form hydrogen bonds, facilitating temperature regulation and transport of nutrients.

Question 6

Which of the following statements about saturated and unsaturated fats is correct?

Accepted Answer

Unsaturated fats contain one or more double bonds and are typically liquids at room temperature.

Question 7

A protein's function is altered when its amino acid sequence changes. Which structural level of protein is directly affected by this change?

Accepted Answer

Primary structure

Question 8

Which of the following best describes the sodium-potassium pump?

Accepted Answer

It uses ATP to actively transport sodium out of the cell and potassium into the cell.

Question 9

During mitosis, which phase is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 10

Which of the following is a function of the skin's keratin protein?

Accepted Answer

Keratin prevents excessive water loss and provides protection from mechanical trauma.

Question 11

A patient presents with yellowing of the skin and eyes. Which pigment is most likely responsible for this condition?

Accepted Answer

Bilirubin (causing jaundice)

Question 12

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

Accepted Answer

Endocrine glands secrete hormones directly into the bloodstream, while exocrine glands secrete substances onto epithelial surfaces.

Question 13

Which of the following is a characteristic of simple squamous epithelial tissue?

Accepted Answer

It consists of a single layer of flat cells, ideal for diffusion.

Question 14

Which of the following best explains why blood is considered a connective tissue?

Accepted Answer

Blood contains an extracellular matrix composed of plasma.

Question 15

Which of the following is true regarding the epidermis?

Accepted Answer

The epidermis is avascular and receives nutrients from the dermis.

Question 16

Which of the following best describes the function of gap junctions in cardiac muscle?

Accepted Answer

They allow rapid communication and passage of ions between cells, facilitating synchronized contraction.

Question 17

Which of the following is a correct example of a decomposition reaction in the body?

Accepted Answer

The breakdown of glycogen into glucose monomers.

Question 18

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

Accepted Answer

ATP stores energy in its phosphate bonds and releases it when hydrolyzed to ADP.

Question 19

A burn patient is assessed using the 'rule of nines.' What is the primary purpose of this rule?

Accepted Answer

To estimate the percentage of body surface area affected by burns.

Question 20

Which of the following best describes the process of osmosis?

Accepted Answer

The movement of water from an area of low solute concentration to high solute concentration across a semipermeable membrane.

Module 1 Study Guide: Overview of Anatomy & Physiology, Basic Chemistry, Cells and Tissues, Skin and Body Membranes

Study Guide - Practice Questions