Question 1

Which of the following best explains why the small intestine has a large internal surface area?

Accepted Answer

It maximizes absorption of nutrients by providing more area for diffusion.

Question 2

Which system is primarily responsible for the exchange of gases between the blood and atmospheric air?

Accepted Answer

Respiratory system

Question 3

A patient is lying face up with arms at their sides and palms facing forward. Which term best describes this position?

Accepted Answer

Anatomic position

Question 4

Which directional term means 'toward the back surface' of the body?

Accepted Answer

Posterior

Question 5

At what level of organization is a tooth classified?

Accepted Answer

Organ

Question 6

Which serous membrane directly covers the surface of an organ?

Accepted Answer

Visceral layer

Question 7

Which of the following is the control center in a homeostatic mechanism?

Accepted Answer

Control center

Question 8

An ion is an atom or group of atoms that has:

Accepted Answer

A net electrical charge due to loss or gain of electrons

Question 9

Fatty acids consist mainly of carbon and hydrogen. Based on this, fatty acids are:

Accepted Answer

Nonpolar

Question 10

Which of the following is a polymer of glucose molecules?

Accepted Answer

Glycogen

Question 11

Compared to a solution with a pH of 7, a solution with a pH of 4 is:

Accepted Answer

1000 times more acidic

Question 12

If carbon dioxide levels rise in the body, negative feedback mechanisms will trigger:

Accepted Answer

An increase in breathing rate

Question 13

How many electrons can fit in each shell beyond the innermost shell of an atom?

Accepted Answer

$$8$$

Question 14

A double covalent bond involves:

Accepted Answer

Sharing two pairs of electrons

Question 15

Which body system provides support, protection, and is the site of blood cell production (hemopoiesis)?

Accepted Answer

Skeletal system

Question 16

An element's atomic number is determined by the number of ________ in one atom of that element.

Accepted Answer

Protons

Question 17

According to the second law of thermodynamics, when energy is transformed from one kind to another:

Accepted Answer

Some energy is lost as heat

Question 18

Which anatomical term describes the wrist region?

Accepted Answer

Carpal

Question 19

The pericardium is a two-layered serous membrane that:

Accepted Answer

Surrounds and protects the heart

Question 20

A patient is diagnosed with metabolic alkalosis. To neutralize the excess base, which substance should be added?

Accepted Answer

An acid

ANP Exam 1 Study Guide: Step-by-Step Guidance for Key Concepts

Study Guide - Practice Questions