Question 1

Which of the following best describes the difference between kinetic energy (KE) and potential energy (PE) in the context of human physiology?

Accepted Answer

KE is the energy of motion, such as blood flow, while PE is stored energy, such as in ATP molecules.

Question 2

A solution is prepared by dissolving 10 grams of NaCl in 100 mL of water. Which method would best determine the concentration of Na$$^+$$ ions in this solution?

Accepted Answer

Using a conductivity meter to assess ion concentration.

Question 3

Which of the following statements about atomic mass and isotopes is correct?

Accepted Answer

Atomic mass is determined by the sum of protons and neutrons, and isotopes differ in their number of neutrons.

Question 4

Which chemical bond is formed when electrons are shared equally between two atoms?

Accepted Answer

Nonpolar covalent bond

Question 5

A buffer system in the blood helps maintain pH homeostasis. Which equation represents the carbonic acid-bicarbonate buffer system?

Accepted Answer

$$\mathrm{CO_2$ + H_2O \leftrightarrow H_2CO_3 \leftrightarrow $$HCO_3$$^- + H^+}$$

Question 6

Which factor would most likely increase the rate of a chemical reaction in the human body?

Accepted Answer

Adding a catalyst such as an enzyme.

Question 7

Which of the following is a decomposition reaction?

Accepted Answer

$$\mathrm{AB \rightarrow A + B}$$

Question 8

Which macromolecule is composed of amino acid monomers and is responsible for catalyzing biochemical reactions?

Accepted Answer

Proteins

Question 9

A patient is experiencing acidosis. Which of the following pH values would most likely be observed in their blood?

Accepted Answer

pH = 6.8

Question 10

Which of the following best describes the role of the extracellular matrix (ECM) in connective tissue?

Accepted Answer

It provides structural support and mediates cell signaling.

Question 11

Which epithelial tissue type is specialized for absorption and secretion and lines most of the digestive tract?

Accepted Answer

Simple columnar epithelium

Question 12

Which of the following is a property of organic compounds that distinguishes them from inorganic compounds?

Accepted Answer

They are primarily composed of carbon atoms bonded to hydrogen.

Question 13

Which of the following best describes a redox reaction?

Accepted Answer

A reaction involving the transfer of electrons between reactants.

Question 14

Which connective tissue type contains a liquid ECM and is responsible for transporting nutrients, gases, and wastes?

Accepted Answer

Blood

Question 15

Which of the following is a correct classification of muscle tissue based on its properties?

Accepted Answer

Cardiac muscle is involuntary and striated.

Question 16

A nerve cell (neuron) is found in which tissue type, and what is its primary function?

Accepted Answer

Nervous tissue; transmitting electrical impulses.

Question 17

Which of the following best describes the process of tissue repair after injury?

Accepted Answer

It may involve both regeneration and fibrosis, depending on tissue type and severity.

Question 18

Which of the following is a synthesis reaction?

Accepted Answer

$$\mathrm{A + B \rightarrow AB}$$

Question 19

Which of the following statements about acids and bases is correct?

Accepted Answer

Bases accept H$$^+$$ ions or release OH$$^-$$ ions in solution.

Question 20

Which of the following best describes the function of glandular epithelium?

Accepted Answer

It secretes substances such as hormones and enzymes.

Study Guide: Chemistry and Tissues in Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards