chapter 2

Question 1

Anything with mass and taking up space. Anything seen, smelled or felt.

Answer 1

Matter

Question 2

Capacity to do work

Answer 2

Energy

Question 3

Stored energy, not used

Answer 3

Potential Energy

Question 4

Energy in motion

Answer 4

Kinetic Energy

Question 5

How many different kinds of elements in the human body?/ What are the 4 most common?

Answer 5

20/ Carbon, hydrogen, nitrogen, oxygen

Question 6

Two of more combined atoms of the same element

Answer 6

Molecule

Question 7

Two or more combined atoms of different elements

Answer 7

Molecule/compound

Question 8

Attractions between two or more atoms

Answer 8

Chemical Bonds

Question 9

Atoms are composed of ___

Answer 9

Subatomic Particles

Question 10

Positive Charged Subatomic Particles

Answer 10

Protons

Question 11

Negative Charged Subatomic Particles

Answer 11

Electrons

Question 12

Subatomic Particles with no charge

Answer 12

Neutrons

Question 13

Outermost shell of an atom

Answer 13

Valence Shell

Question 14

How many electrons in a stable valence shell?

Answer 14

8

Question 15

not a physical bond, but an energy relationship

Answer 15

Bond

Question 17

A type of bond formed when valence shell electrons are transferred from one atom to another. The strongest bond.

Answer 17

Ionic bond

Question 18

Type of bond that involves sharing a pair of electrons

Answer 18

Covalent bond

Question 19

The bond that is between the electropositive H of one molecule and the electro negative O/N of another. Weak bond Ex. Water bonds

Answer 19

Hydrogen bond

Question 20

Larger molecules are constructed from smaller ones. Reaction requires energy

Answer 20

Anabolic reaction

Question 21

Larger molecules are broken down, Energy is released

Answer 21

Catabolic reaction

Question 22

Removing a molecule of water to join two smaller molecules.

Answer 22

Dehydration synthesis (anabolic)

Question 23

A molecule of water is inserted into a polymer, which is split into two smaller molecules

Answer 23

Hydrolysis (Catabolic)

Question 24

What speeds up chemical reactions by lowering the activation energy?

Answer 24

Enzymes

Question 25

Where the enzyme and the substrate combine

Answer 25

Active site

Question 26

Heat, pH extremes, chemicals. electricity, radiation

Answer 26

Factors that can denature (change the shape of) your enzymes

Question 27

Chemistry of life

Answer 27

Biochemistry

Question 28

compounds that include acids, bases, water and salts. most dont contain carbon

Answer 28

Inorganic compounds

Question 29

Compounds that include carbon and covalent bonds in their structure

Answer 29

Organic compounds

Question 30

REVIEW WATER SLIDE

Answer 30

-

Question 31

REVIEW SALTS SLIDE

Answer 31

-

Question 32

REVIEW ACIDS AND BASES SLIDE

Answer 32

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