Test 2

Question 1

Antibodies, some hormones, and enzymes

Answer 1

Proteins

Question 2

Bond formed when an atom either gains or loses an electrons

Answer 2

Ionic bond

Question 3

When an atom loses an electron that atom becomes more ______ and is known as a _______

Answer 3

Positive, cation

Question 4

When an atom gains an electron, that atom becomes more _______ and is known as an ______

Answer 4

Negative, anion

Question 5

Bonds that share electron pairs

Answer 5

Covalent bonds

Question 6

When the electrons are shared equally, the molecule is a ________ bond.

Answer 6

Nonpolar covalent bond

Question 7

When the electrons are not shared equally, the molecule is a _________ bond.

Answer 7

Polar covalent bond

Question 8

The atomic number of an element is determined by the number of ________ in the element.

Answer 8

Protons

Question 9

Isotopes differ from other atoms of the same element only in their number of ______ they possess.

Answer 9

Neutrons

Question 10

Neutral atoms have the same number of _____ and______

Answer 10

Protons and electrons

Question 11

The nucleus contains _______ and ________ particles

Answer 11

Protons and neutrons

Question 12

The atomic mass Is equivalent to the number of ______ and ________ in an atom.

Answer 12

Protons and neutrons

Question 13

The _______ shell is the outer most electron shell.

Answer 13

Valence

Question 14

How many electrons can the first electron shell hold?

Answer 14

2

Question 15

How many electrons can the second electron shell hold?

Answer 15

8

Question 16

What particles of an atom are lost during a cation formation

Answer 16

Electron

Question 17

What is a biological catalyst that increases the rate of chemical reaction

Answer 17

Enzymes

Question 18

What is the sugar found in DNA?

Answer 18

Deoxyribose

Question 19

DNA forms a ________

Answer 19

Double helix

Question 20

RNA forms a _______

Answer 20

Single strand

Question 21

The pH scale shows that 0 means strongest __________

Answer 21

Acid

Question 22

The pH scale shows that 14 is the strongest _______

Answer 22

Base

Question 23

If something has the pH of 7 it is ________

Answer 23

Neutral

Question 24

An acid is a proton

Answer 24

Donor

Question 25

A base is a proton ________

Answer 25

Acceptor

Question 26

Chewing food is an example of what kind of energy

Answer 26

Mechanical

Question 27

Vision is an example of what kind of energy

Answer 27

Radiant

Question 28

Making a fist is an example of what kind of energy

Answer 28

Mechanical

Question 29

Lying in a tanning bed is an example of what kind of energy

Answer 29

Radiant

Question 30

Anything that takes up space and has mass

Answer 30

Matter

Question 31

A unique substance composed of atoms having the same atomic number

Answer 31

Element

Question 32

Negatively charged particles, forming in parts of an atom

Answer 32

Electrons

Question 33

The ability to do work

Answer 33

Energy

Question 34

Smallest particle of an element that retains the properties of that element

Answer 34

Atom

Question 35

Smallest particle of a compound, formed when atoms combine chemically

Answer 35

Molecule

Question 36

Positively charged particles forming part of an atom

Answer 36

Protons

Question 37

Name given to the outer most electron shell

Answer 37

Valence

Question 38

Subatomic particles responsible for most of an atoms mass

Answer 38

Neutrons and protons

Question 39

Building blocks of carbohydrates

Answer 39

Monosaccharides

Question 40

Building blocks of fat

Answer 40

Fatty acids and glycerol

Question 41

Building blocks of protein

Answer 41

Amino acids

Question 42

Building blocks of nucleic acids

Answer 42

Nucleotides

Question 43

Single most important fuel source for body cells

Answer 43

Carbohydrates

Question 44

Used to insulate the body

Answer 44

Lipids

Question 45

Primary components of meet and cheese

Answer 45

Proteins

Question 46

Primary components of bread and lollipops

Answer 46

Carbohydrates

Question 47

Primary components of egg yolk and peanut oil

Answer 47

Lipids

Question 48

Subatomic particles that determine an atom's chemical behavior, or bonding ability

Answer 48

Electrons

Question 49

Class that includes cholesterol

Answer 49

Lipids

Question 50

Glucose and starch

Answer 50

Carbohydrates

Question 51

Function is building tissues

Answer 51

Proteins

Question 52

Simple sugars

Answer 52

Monosaccharides

Question 53

A phosphate group, five-carbon sugar, and a nitrogen-containing base

Answer 53

Nucleotides

Question 54

Building block is a monosaccharide

Answer 54

Carbohydrates

Question 55

DNA, RNA, and ATP are types of these compounds

Answer 55

Nucleic acid

Question 56

Triglycerides, steroids, and fat-soluble vitamins are types of these compounds

Answer 56

Lipids