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Physiology I & II > Phys Ch 2 Vocab > Flashcards

Phys Ch 2 Vocab Flashcards

1
Q

Metabolism

A

the sum of all chemical reactions

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2
Q

Elements

A

unique substances that cannot be broken down into simpler substances

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3
Q

Matter

A

the “stuff” of the universe; occupies space and mass

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4
Q

Mass

A

the amount of matter

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5
Q

Molecule

A

when two or more elements combine chemically

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6
Q

Compound

A

when two or more different elements combine

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7
Q

Chemical Reaction

A

process in which molecules are formed, changed, or broken down

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8
Q

Anabolism

A

the combining of similar substances to form more complex substances

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9
Q

Catabolism

A

the breaking down of substances into similar substances by living cells; destructive metabolism

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10
Q

Catalyst

A

a substance that increases the rate of reaction

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11
Q

Valance (shell)

A

the outermost energy level of an atom

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12
Q

Orbital

A
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13
Q

Covalent Bond

A

molecules that share atoms

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14
Q

pH Scale

A

the level of hydrogen ion concentration

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15
Q

Hydroxide

A
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16
Q

Ionic Bond

A

when electrons are completely transferred

17
Q

Hydrogen Bond

A

weak bonds; when hydrogen bonds to one electron Nitrogen or Oxygen

18
Q

Energy

A

the ability to do work or put matter into motion

19
Q

Atomic Number

A

the number of protons

20
Q

Atomic Mass

A

the total number of protons and neutrons

21
Q

Radioactivity

A

spontanious atomic decay

22
Q

Organic Chemistry

A

carbon-based compounds

23
Q

Carbohydrates

A

sugars and starches, containing carbon, hydrogen, and oxygen.

24
Q

Saccharides

A

sugars

25
Q

Lipids

A

a large and diverse group of organic compounds

26
Q

Proteins

A

the main building material of cells

27
Q

Nucleic Acids

A

they make up genes, which provide the basic blueprints of life

28
Q

ATP

A

provides a form of chemical energy that is usable by all body cells

Physiology I & II (8 decks)

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