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

Question 1

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, facing forward, arms at the sides with palms facing forward

Question 2

A patient is experiencing swelling in the right lower quadrant of the abdomen. Which organ is most likely affected?

Accepted Answer

Appendix

Question 3

Which directional term describes a structure that is closer to the midline of the body?

Accepted Answer

Medial

Question 4

Which of the following is an example of a negative feedback loop in the human body?

Accepted Answer

Regulation of blood glucose levels by insulin

Question 5

Which of the following is a correct formula for calculating atomic mass?

Accepted Answer

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

Question 6

Which of the following best describes a dehydration synthesis reaction?

Accepted Answer

A reaction in which water is removed to form a bond between molecules

Question 7

Which class of organic macromolecules contains genetic information?

Accepted Answer

Nucleic acids

Question 8

A solution has a pH of 3. Which of the following best describes this solution?

Accepted Answer

It is acidic

Question 9

Which of the following is a function of proteins in the human body?

Accepted Answer

Catalyzing chemical reactions as enzymes

Question 10

Which organelle is responsible for producing ATP, the main energy currency of the cell?

Accepted Answer

Mitochondrion

Question 11

Which of the following best describes the process of diffusion?

Accepted Answer

Movement of solutes from high to low concentration due to random molecular motion

Question 12

A red blood cell placed in a hypotonic solution will:

Accepted Answer

Swell and possibly burst due to water influx

Question 13

Which of the following is the correct sequence of events in mitosis?

Accepted Answer

Prophase, Metaphase, Anaphase, Telophase

Question 14

Which of the following epithelial tissue types is best adapted for diffusion and filtration?

Accepted Answer

Simple squamous

Question 15

Which of the following is NOT a function of epithelial tissue?

Accepted Answer

Contraction

Question 16

Which of the following best describes the role of phospholipids in the cell membrane?

Accepted Answer

They form a bilayer that acts as a barrier to most water-soluble substances

Question 17

Which of the following is the correct complementary base pairing in DNA?

Accepted Answer

Adenine–Thymine, Guanine–Cytosine

Question 18

Which of the following best describes the function of tRNA during protein synthesis?

Accepted Answer

Transfers amino acids to the ribosome according to the mRNA codon sequence

Question 19

Which of the following is a characteristic of saturated fatty acids compared to unsaturated fatty acids?

Accepted Answer

They have only single bonds between carbon atoms

Question 20

Which of the following best describes the function of cell adhesion molecules?

Accepted Answer

They help cells stick together and communicate with each other

Anatomy & Physiology I: Study Guide for Chapters 1–4

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