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Biology 1 Honors > Biochemistry Vocabulary Quiz#1 > Flashcards

Biochemistry Vocabulary Quiz#1 Flashcards

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1
Q

Atom

A

The basic building blocks of life

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2
Q

Molecule

A

A group of chemically bonded atoms

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3
Q

Element

A

pure substance that can’t be broken apart by chemical means

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4
Q

Ion

A

Charged particlles

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5
Q

Atomic Number

A

Number of protons

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6
Q

Ionic Bond

A

Electrons are transferred from metals to

nonmetals

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7
Q

Covalent Bond

A

Electrons are shared between two or more nonmetals

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8
Q

Hydrogen Bond

A

Occurs between water molecules, because

water is polar

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9
Q

Polar

A

a part of the molecule is positively charged, while another part is negatively charge

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10
Q

Nonpolar

A

molecules that have no charge

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11
Q

Cohesion

A

is an attractive force between particles of the same kind

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12
Q

Surface Tension

A

the top layer of the water, behave as an elastic sheet.

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13
Q

Adhesion

A

is the attraction between the molecules of 2 different substances

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14
Q

Capillary Action

A

where water molecules move through a substance quickly, or “climb” up a thin tube against gravity

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15
Q

Universal Solvent

A

Water, because of its polar

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16
Q

Homeostasis

A

the cell’s stable internal environment

17
Q

Solution

A

a homogeneous mixture in which the particles are too small to be seen and very well-mixed; dissolving is a physical change

18
Q

Homogeneous

A

mixture in which the particles are too small to be seen and very well-mixed

19
Q

Solute

A

substance being dissolved

20
Q

Solvent

A

substance doing the dissolving

21
Q

Acid

A

produce H+ ions in water

22
Q

Base

A

produce OH- ions in water

23
Q

pH Scale

A

Measures the amount of H+ ions in a solution

24
Q

Indicator

A

a chemical which changes color in the presence of an acid or a base

25
Q

Buffer

A

chemical substances that neutralize small amounts of acids and bases in the body

Biology 1 Honors (3 decks)

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