Question 1

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

Accepted Answer

Returning leaked fluids from tissues to the blood and providing immune defense

Question 2

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

Accepted Answer

Supine

Question 3

Which plane divides the body into anterior and posterior sections?

Accepted Answer

Coronal (frontal) plane

Question 4

The dorsal body cavity contains which of the following organs?

Accepted Answer

Brain and spinal cord

Question 5

Which of the following statements about energy is correct?

Accepted Answer

Radiant energy travels in waves, such as light or X-rays.

Question 6

A sodium atom loses one electron to become a sodium ion. Which term best describes this ion?

Accepted Answer

Cation

Question 7

Which of the following is NOT one of the four main elements that make up over 96% of the human body?

Accepted Answer

Calcium

Question 8

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

Accepted Answer

Covalent bond

Question 9

A chemical reaction in which two smaller molecules combine to form a larger molecule is called:

Accepted Answer

Synthesis reaction

Question 10

If a solution has a pH of 5, which of the following statements is true?

Accepted Answer

The solution is acidic and has a higher concentration of H$$^+$$ ions.

Question 11

Which class of macromolecules is primarily responsible for storing genetic information?

Accepted Answer

Nucleic acids

Question 12

A patient is diagnosed with metabolic acidosis. Which of the following best describes the role of buffers in this scenario?

Accepted Answer

Buffers maintain pH by accepting or donating H$$^+$$ ions as needed.

Question 13

Which of the following best describes an isotope?

Accepted Answer

An atom with a different number of neutrons

Question 14

Which of the following is a real-life example of an oxidation-reduction (redox) reaction in the human body?

Accepted Answer

Breakdown of glucose during cellular respiration

Question 15

Which of the following best describes the difference between a sagittal and a transverse plane?

Accepted Answer

A sagittal plane divides the body into left and right parts, while a transverse plane divides it into superior and inferior parts.

Question 16

Which of the following is a characteristic of lipids?

Accepted Answer

They are generally insoluble in water.

Question 17

A molecule of table salt (NaCl) is formed when sodium donates an electron to chlorine. What type of bond is formed?

Accepted Answer

Ionic bond

Question 18

Which organ system is primarily responsible for producing movement and generating heat?

Accepted Answer

Muscular system

Question 19

Which of the following best describes the role of proteins in the body?

Accepted Answer

They act as enzymes, structural components, and transporters.

Question 20

A patient is given a medication that acts as a strong base. What effect will this have on the patient's blood pH?

Accepted Answer

It will increase the pH, making the blood more alkaline.

M1 Study Guide

Study Guide - Practice Questions