Question 1

A patient is experiencing a rapid drop in blood glucose levels. Which type of feedback mechanism is most likely to be activated to restore homeostasis, and what is the primary result of this process?

Accepted Answer

Negative feedback; blood glucose levels will be regulated back to normal

Question 2

Which of the following best describes the anatomical position?

Accepted Answer

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

Question 3

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

Accepted Answer

Superior and inferior

Question 4

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Transmits electrical impulses

Question 5

A molecule of water (H$$_2O) is $$held together by which type of bond?

Accepted Answer

Polar covalent bond

Question 6

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 7

A patient has a cut that divides the body into right and left halves. Which anatomical plane does this describe?

Accepted Answer

Sagittal

Question 8

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 9

Which of the following best describes the function of the control center in a homeostatic feedback loop?

Accepted Answer

Receives input from the receptor and determines the appropriate response

Question 10

A solution has a pH of 2. Which of the following statements is TRUE?

Accepted Answer

The solution is acidic

Question 11

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

Accepted Answer

Transports nutrients, gases, and wastes throughout the body

Question 12

Which of the following best describes a lipid molecule?

Accepted Answer

A molecule that is generally insoluble in water and consists mainly of carbon and hydrogen

Question 13

A bond in which electrons are shared unequally is called a:

Accepted Answer

Polar covalent bond

Question 14

Which of the following is NOT a function of proteins in the body?

Accepted Answer

Storing genetic information

Question 15

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 16

A patient is diagnosed with a disease that affects the mitochondria. Which cellular process is most likely to be impaired?

Accepted Answer

ATP production

Question 17

Which of the following best describes the function of the lysosome in a cell?

Accepted Answer

Breaks down phagocytized material

Question 18

Which of the following is the best explanation for why the plasma membrane is described as a 'fluid mosaic'?

Accepted Answer

It contains a variety of proteins and lipids that can move laterally within the layer

Question 19

Which of the following is NOT a factor that influences the rate of a chemical reaction?

Accepted Answer

Color of the reactants

Question 20

A patient is found to have a mass number of 24 and an atomic number of 10 for a particular atom. How many neutrons does this atom have?

Accepted Answer

14

Anatomy & Physiology: Human Body Orientation, Chemistry, Cells, and Tissues – Study Guide

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