Chapter 8 Light Energy, And Radio frequency Therapy

Question 1

What is the basic unit of matter?

Answer 1

Atom

Question 2

True or False: Molecules are formed when two or more atoms bond together.

Answer 2

True

Question 3

Fill in the blank: The pH scale ranges from ___ to ___.

Answer 3

0, 14

Question 4

What term describes a substance that cannot be broken down into simpler substances?

Answer 4

Element

Question 5

Which type of bond involves the sharing of electrons?

Answer 5

Covalent bond

Question 6

What is the pH level of pure water?

Answer 6

7

Question 7

True or False: An acid has a pH less than 7.

Answer 7

True

Question 8

What are the three states of matter?

Answer 8

Solid, liquid, gas

Question 9

Fill in the blank: The process of a liquid turning into a gas is called ___.

Answer 9

Vaporization

Question 10

What is the term for a solution that has a pH greater than 7?

Answer 10

Base or alkaline solution

Question 11

Which type of chemical reaction involves the exchange of ions?

Answer 11

Double displacement reaction

Question 12

What is the primary role of enzymes in the body?

Answer 12

To catalyze biochemical reactions

Question 13

True or False: Organic chemistry primarily deals with carbon-containing compounds.

Answer 13

True

Question 14

What is the main function of antioxidants?

Answer 14

To neutralize free radicals

Question 15

Fill in the blank: The smallest unit of an element that retains the properties of that element is called an ___.

Answer 15

Atom

Question 16

What is the significance of the atomic number?

Answer 16

It indicates the number of protons in an atom.

Question 17

Which type of bond involves the transfer of electrons?

Answer 17

Ionic bond

Question 18

What is a buffer?

Answer 18

A solution that resists changes in pH.

Question 19

True or False: Lipids are soluble in water.

Answer 19

False

Question 20

What are the building blocks of proteins?

Answer 20

Amino acids

Question 21

Fill in the blank: The process by which cells break down glucose to produce energy is called ___.

Answer 21

Glycolysis

Question 22

What is the role of nucleic acids in cells?

Answer 22

To store and transmit genetic information.

Question 23

Which type of fatty acid contains no double bonds?

Answer 23

Saturated fatty acid

Question 24

What is the main characteristic of a polar molecule?

Answer 24

It has a partial positive and partial negative charge.

Question 25

True or False: Water is a polar molecule.

Answer 25

True

Question 26

What is the primary component of cell membranes?

Answer 26

Phospholipids

Question 27

Fill in the blank: The process of converting light energy into chemical energy is called ___.

Answer 27

Photosynthesis