Question 1

Which of the following best describes the anatomical position used as a reference in human anatomy?

Accepted Answer

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

Question 2

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

Accepted Answer

The heart is medial to the lungs

Question 3

Which of the following is an example of an ionic bond?

Accepted Answer

The bond between sodium and chloride in NaCl

Question 4

Which property of water allows it to moderate temperature changes in living organisms?

Accepted Answer

High specific heat

Question 5

A solution with a pH of 4 is how many times more acidic than a solution with a pH of 7? Use the formula $$	ext{Difference} = 10$$^{|pH_1 - pH_2|}$$.

Accepted Answer

$$10^3 = 1000$ times

Question 6

Which of the following best describes the fluid mosaic model of the cell membrane?

Accepted Answer

A flexible layer with proteins embedded in or attached to a phospholipid bilayer

Question 7

Facilitated diffusion differs from simple diffusion in that facilitated diffusion:

Accepted Answer

Requires membrane proteins to transport substances

Question 8

A red blood cell placed in a hypotonic solution will:

Accepted Answer

Swell and possibly burst due to water influx

Question 9

Which organelle is primarily responsible for packaging and shipping proteins within the cell?

Accepted Answer

Golgi apparatus

Question 10

During DNA replication, which enzyme is responsible for unwinding the DNA double helix?

Accepted Answer

Helicase

Question 11

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein

Question 12

Which stage of the cell cycle is responsible for checking DNA for damage before mitosis begins?

Accepted Answer

G2 checkpoint

Question 13

If a mutation occurs during DNA replication, which cellular process is most likely to correct the error?

Accepted Answer

DNA repair mechanisms

Question 14

Which of the following is the correct order of structural organization in the human body from simplest to most complex?

Accepted Answer

Cells → Tissues → Organs → Organ systems → Organism

Question 15

Which of the following best explains why enzymes are considered biological catalysts?

Accepted Answer

They speed up chemical reactions without being used up

Question 16

Which of the following scenarios best illustrates active transport across a cell membrane?

Accepted Answer

Glucose moving into a cell against its concentration gradient using ATP

Question 17

Which checkpoint in the cell cycle ensures that all chromosomes are properly attached to the spindle before proceeding with division?

Accepted Answer

M checkpoint

Question 18

Which of the following is NOT a function of membrane proteins?

Accepted Answer

Storing genetic information

Question 19

Which process describes the movement of water across a semipermeable membrane from an area of low solute concentration to high solute concentration?

Accepted Answer

Osmosis

Question 20

Which stage of mitosis is characterized by the alignment of chromosomes along the cell's equatorial plate?

Accepted Answer

Metaphase

Anatomy & Physiology Study Guide: Body Organization, Chemistry, Cells, Genetics, and Cell Cycle

Study Guide - Practice Questions