chapter 2 Flashcards

1
Q

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

A

Matter

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2
Q

Capacity to do work

A

Energy

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3
Q

Stored energy, not used

A

Potential Energy

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4
Q

Energy in motion

A

Kinetic Energy

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5
Q

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

A

20/ Carbon, hydrogen, nitrogen, oxygen

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6
Q

Two of more combined atoms of the same element

A

Molecule

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7
Q

Two or more combined atoms of different elements

A

Molecule/compound

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8
Q

Attractions between two or more atoms

A

Chemical Bonds

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9
Q

Atoms are composed of ___

A

Subatomic Particles

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10
Q

Positive Charged Subatomic Particles

A

Protons

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11
Q

Negative Charged Subatomic Particles

A

Electrons

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12
Q

Subatomic Particles with no charge

A

Neutrons

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13
Q

Outermost shell of an atom

A

Valence Shell

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14
Q

How many electrons in a stable valence shell?

A

8

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15
Q

not a physical bond, but an energy relationship

A

Bond

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16
Q
A
17
Q

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

A

Ionic bond

18
Q

Type of bond that involves sharing a pair of electrons

A

Covalent bond

19
Q

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

A

Hydrogen bond

20
Q

Larger molecules are constructed from smaller ones. Reaction requires energy

A

Anabolic reaction

21
Q

Larger molecules are broken down, Energy is released

A

Catabolic reaction

22
Q

Removing a molecule of water to join two smaller molecules.

A

Dehydration synthesis (anabolic)

23
Q

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

A

Hydrolysis (Catabolic)

24
Q

What speeds up chemical reactions by lowering the activation energy?

A

Enzymes

25
Q

Where the enzyme and the substrate combine

A

Active site

26
Q

Heat, pH extremes, chemicals. electricity, radiation

A

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

27
Q

Chemistry of life

A

Biochemistry

28
Q

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

A

Inorganic compounds

29
Q

Compounds that include carbon and covalent bonds in their structure

A

Organic compounds

30
Q

REVIEW WATER SLIDE

A

-

31
Q

REVIEW SALTS SLIDE

A

-

32
Q

REVIEW ACIDS AND BASES SLIDE

A

-