Question 1

Which of the following best describes the function of the control center in a homeostatic feedback loop, as illustrated in the diagram with steps labeled A-E?

Accepted Answer

It receives input from the receptor and determines the appropriate response.

Question 2

A patient presents with a stab wound that penetrates the parietal pleura. Which cavity is most directly affected?

Accepted Answer

Thoracic cavity

Question 3

Which of the following is an example of negative feedback?

Accepted Answer

Regulation of blood glucose levels

Question 4

A transverse plane divides the body into which of the following sections?

Accepted Answer

Superior and inferior portions

Question 5

Which directional term best describes the position of the lungs relative to the heart?

Accepted Answer

Lateral

Question 6

Which of the following statements about serous membranes is NOT correct?

Accepted Answer

Visceral pericardium covers the outer surface of the heart, and parietal pericardium lines the internal walls of the heart.

Question 7

Which of the following best explains why cells are considered the smallest units of living things?

Accepted Answer

Cells are the simplest structure to fit all of the characteristics necessary to be considered alive.

Question 8

A molecule of water ($$\mathrm{H_2O}) is $$held together by which type of chemical bond?

Accepted Answer

Polar covalent bond

Question 9

If an atom has an atomic number of 10 and a mass number of 24, how many neutrons does it have?

Accepted Answer

14 neutrons

Question 10

Which organelle is responsible for packaging proteins for insertion in the cell membrane or for exocytosis?

Accepted Answer

Golgi apparatus

Question 11

Which of the following is a function of the integumentary system?

Accepted Answer

Prevents water loss and entry of germs into the body

Question 12

Which of the following is NOT a function of proteins?

Accepted Answer

They appear to be the molecular carriers of coded hereditary information.

Question 13

Which of the following best describes a fibrous protein?

Accepted Answer

Structural framework

Question 14

Which of the following is the best example of a positive feedback mechanism?

Accepted Answer

Enhancement of labor contractions

Question 15

A patient is diagnosed with a spleen injury. In which quadrant of the abdominopelvic cavity is the spleen located?

Accepted Answer

Left upper quadrant

Question 16

Which of the following is NOT considered a factor in influencing a reaction rate?

Accepted Answer

Type of reactant

Question 17

Which of the following best describes the hydrophilic portion of a phospholipid in the plasma membrane?

Accepted Answer

Phosphate-containing head

Question 18

Which type of chemical bond can form between an atom with 11 protons and an atom with 17 protons?

Accepted Answer

Ionic

Question 19

Which of the following best describes the function of ribosomal RNA (rRNA)?

Accepted Answer

Forms part of the subunits for the protein synthesizing organelle

Question 20

Which of the following statements about enzymes is TRUE?

Accepted Answer

Enzymes may use coenzymes derived from vitamins or cofactors from metallic elements.

Anatomy & Physiology Practice Test 1: Study Guide

Guida di studio - Domande di pratica

Study guide - Flashcard