7.1

Question 1

Chemistry

Answer 1

Scientific study of matter

Question 2

Biochemistry

Answer 2

Study of chemical reactions like growth, reproduction, and respiration

Question 3

Organic chemistry

Answer 3

Deals with matter that’s living or was living

Study of matter containing carbon

Question 4

Inorganic chemistry

Answer 4

Deals with matter that was never living and doesn’t contain carbon

Question 5

Matter

Answer 5

Anything that occupies space

Question 6

Solid

Answer 6

Definite weight, volume, and shape

Question 7

Liquid

Answer 7

Definite weight and volume but no shape

Question 8

Gas

Answer 8

Definite weight but indefinite volume and shape

Question 9

Physical change

Answer 9

Change in physical characteristics of a substance without creating a new substance

Question 10

Chemical change

Answer 10

Change that creates a new substance with different material characteristics from the original

Question 11

Sublimination

Answer 11

Changes solid into gas without melting

Question 12

Energy

Answer 12

Ability to do work to accomplish change

Gain or loss of energy

Question 13

Elements

Answer 13

Basic units of matter that can’t be broken down into simpler substances by any chemical reaction

Question 14

Periodic table

Answer 14

Elemental arrangement, grouped bu similar properties

The number is the atomic number - number of protons

Question 15

Periodic law

Answer 15

Unifying concept to organize elements and their similarities

Question 16

Elements of interest

Answer 16

Carbon, oxygen, hydrogen, nitrogen, and sulfur

Question 17

Atoms

Answer 17

Smallest complete unit of element

Question 18

3 particles of atoms

Answer 18

Protons, neutrons, and electrons

Question 19

Nucleus

Answer 19

Protons and neutrons packed tightly to form a dense core

Question 20

Free electron

Answer 20

Electron in the outermost orbit that’s easily moved

Question 21

Molecules

Answer 21

Unstable atoms combine chemically by sharing electrons, 2 or more of the same atoms joined by chemical bonds

Question 22

Compounds

Answer 22

Created chemically uniting 2 different elements

Unique chemical and physical characteristics

Question 23

Chemical reaction

Answer 23

Occurs in the atom’s outer shell, leads to composition of the client’s needs, occurs when two or more chemicals are mixed

Question 24

Oxidation

Answer 24

Loses electron, requires oxygen

Question 25

Reduction

Answer 25

Gains electron, oxygen is released

Question 26

Ions

Answer 26

Charged atoms in a chemical reaction, attract or repel based on their charge

Question 27

Ionic bond

Answer 27

When positive and negative ions join, they’re held together

Question 28

Covalent bond

Answer 28

If there’s no trading and atoms are sharing electrons, they’re held together

Question 29

Chemical bonds

Answer 29

Forces that hold atoms together in compounds

Question 30

3 biochemical compound groups

Answer 30

Proteins
Carbs
Lipids

Question 31

Enzymes

Answer 31

Dissolve and break down larger molecules into smaller ones

Question 32

Amino acids

Answer 32

Compounds - C, O, H, N form protein chains by joining

Question 33

Peptide bond

Answer 33

Unites two amino acid groups

Question 34

Polypeptide bond

Answer 34

Thousands of amino acids to form chain

Question 35

Monomers

Answer 35

Basic building block molecules, connect to form larger and more complex compounds

Question 36

Lipids

Answer 36

C, H, O - not formed by linkage of basic molecule units

Synthesized by body and used in biological functions, fills in intercellular spaces in skin