Chapter 2 Flashcards

1
Q

compound that forms HYDROGEN IONS (H+) in solution, a solution with a pH of LESS THAN 7.

A

Acid

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2
Q

compound that produces HYDROXIDE IONS (OH-) in solution, solution with a pH of MORE THAN 7.

A

Base

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3
Q

Subunit of which NUCEIC acids are composed, made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base.

A

NUCLEOtide

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4
Q

Elements or compounds produced
by chemical reactions.

A

Product

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5
Q

Mixture of water and non-dissolved material.

A

Suspension

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6
Q

Elements or compounds produced by Chemical REACTION.

A

Reactant

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7
Q

Compound that prevents sharp, sudden changes in pH.

A

Buffer

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8
Q

Compound made of Carbon, Hydrogen and oxygen atoms, types of nutrients that are major source of ENERGY to the body.

A

Carbohydrate

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9
Q

Dissolving substance in a solution.

A

Solvent

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10
Q

Substance that is dissolved in a solution.

A

Solute

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11
Q

Reactant of an enzyme catalyzed reaction.

A

Substrate

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12
Q

Substance that SPEEDS UP the rate of a chemical reaction.

A

Catalyst

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13
Q

Macromolecule made mostly from carbon and nitrogen atoms, includes fats, oils and waxes.

A

Lipid

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14
Q

Macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorous.

A

Nucleic Acid

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15
Q

Macromolecules that contains carbon, hydrogen, oxygen and nitrogen needed by the body for GROWTH and REPAIR.

A

Protein

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16
Q

Compound with an amino group on one end and a carboxl group on the other end.

A

Amino Acid

17
Q

Energy input that is needed for a reaction to begin.

A

Activation energy

18
Q

Substance formed by the Chemical Combination of two or more elements in definite proportions.

A

Compound

19
Q

Slight attraction that develops between oppositely charged regions of nearby molecules.

A

Van der Waals forces

20
Q

Smallest unit of most compounds that displays all the properties of that compound.

A

Molecule

21
Q

Pure substance that consists entirely of one type of atom.

A

Element

22
Q

Atom that has a postive (+) or negative (-) charge.

A

Ion

23
Q

Weak attraction between a Hydrogen atom and another atom.

A

Hydrogen Bond