Chapter 2

Question 1

Chemical bonds form to make atoms more?

Answer 1

Stable

Question 2

What are the building blocks of proteins?

Question 3

What forms when an atom gains or loses electrons?

Answer 3

Ion

Question 4

What determines atoms present in a compound?

Question 5

What maintains pH balance?

Answer 5

Buffer

Question 6

Examples of inorganic molecules?

Answer 6

Water, and some acid, based and salts

Question 7

Forms when opposite charged ions attract each other?

Answer 7

Ionic bonds

Question 8

Alkaline compounds?

Answer 8

Base

Question 9

Unravel is with?

Answer 9

RNA

Question 10

What is the lipid that is found with cholesterol?

Answer 10

Phospholipid

Question 11

Ionic bonds are chemical bonds formed by the?

Answer 11

Donations of electrons

Question 12

Two examples of structural proteins?

Answer 12

Collagen and Keratin

Question 13

What are the functional lipids?

Answer 13

Enzymes, catalyst, and hormones

Question 14

Form membranes of cells?

Answer 14

Phospholipids

Question 15

Hydrogen bonds are easily?

Answer 15

Broken and weak

Question 16

How many electrons in the first and the second ring of an outer ring?

Answer 16

2 and then 8

Question 17

Combine to form a larger product?

Answer 17

Reactant

Question 18

What directs overall body structure and function by directing the formation of structure and functional proteins?

Answer 18

Nucleic acids

Question 19

Electrons move about within certain limits called?

Answer 19

Orbitals

Question 20

When atoms share electrons, what is formed?

Answer 20

Covalent bonds

Question 21

What can substances be classified as based on the type of atoms that make it up?

Answer 21

Elements or compounds

Question 22

Building blocks of proteins?

Answer 22

Amino acid and peptide bonds

Question 23

If a compound dissociates in water, it?

Answer 23

Separates to form free ions

Question 24

Pure substance composed of only one type of atom?

Answer 24

Element

Question 25

Phospholipids?

Answer 25

Water resisting, water attracting

Question 26

Substances whose molecules have more than one element in them are called?

Answer 26

Compounds

Question 27

What bond is easily broken?

Answer 27

Ionic

Question 28

Compounds that form ion when dissolved in water are called?

Answer 28

Electrolytes

Question 29

What is an electrically formed atom?

Answer 29

Ions

Question 30

What is the field of science devoted to studying the chemical aspect of life?

Answer 30

Biochemistry

Question 31

Compound that dissolves easily in water?

Answer 31

Ionic compound

Question 32

Easily dissociates to produce large quantities of H+ ions?

Answer 32

Strong Acid

Question 33

Two atoms that have the same atomic number but different atomic mass?

Answer 33

Isotope

Question 34

The Lock and key model is used to describe what?

Answer 34

Enzymes

Question 35

Two examples of disaccharides?

Answer 35

Sucrose and lactose

Question 36

What is used as starting substance for estrogen and testosterone?

Answer 36

Cholesterol

Question 37

What are the three subatomic particles?

Answer 37

Proton, neutron, electron

Question 38

Forms tough, waterproof fibers in the outer layer of the skin?

Answer 38

Keratin

Question 39

Water plus common salt?

Answer 39

Aqueous solution

Question 40

What stabilizes the phospholipid tails in cellular membranes?

Answer 40

Cholesterol

Question 41

Examples of functional proteins?

Answer 41

Hormones, cell membrane channels, and receptors, enzymes

Question 42

The number of protons and neutrons combined in the atom’s?

Answer 42

Atomic mass

Question 43

Yields energy for muscle contractions?

Answer 43

ATP

Question 44

What makes the blood more acidic?

Answer 44

Carbon dioxide

Question 45

Glycogen by hydrolysis breaks down into?

Answer 45

Glucose

Question 46

What is the compound most essential to life?

Answer 46

Water

Question 47

Most chemicals in the body are in the form of what?

Answer 47

Molecules

Question 48

Thymine is with?

Answer 48

DNA

Question 49

The reverse of dehydration synthesis?

Answer 49

Hydrolysis

Question 50

The smallest unit of matter is?

Answer 50

Atom

Question 51

A measure of the H+ concentration?

Answer 51

pH

Question 52

What element do carbohydrates have?

Answer 52

Carbon, hydrogen and oxygen

Question 53

Atoms usually unite with each other to form larger chemical units called?

Answer 53

Molecules

Question 54

What serves the body by making energy available to cellular processes?

Answer 54

ATP

Question 55

Inorganic if it doesn’t have?

Answer 55

Carbon

Question 56

Atoms share their outer energy and do not easily dissociate?

Answer 56

Covalent bond

Question 57

Glycogen?

Answer 57

Polysaccharide; most complex

Question 58

The number of protons in the nucleus is an atom’s what?

Answer 58

Atomic number

Question 59

What is the internal sea of the body?

Answer 59

Aqueous solution

Question 60

What dissolves solutes?

Answer 60

Solvents

Question 61

What two organs help to maintain pH?

Answer 61

Kidneys and spleen

Question 62

What type of compound has few to no C-C or C-H bonds?

Answer 62

Inorganic

Question 63

Reactants only combine only after H and O are removed?

Answer 63

Dehydration synthesis

Question 64

Glucose?

Answer 64

Monosaccharide

Question 65

Molecules have a steroid structure made up of multiple rings?

Answer 65

Cholesterol