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AP Biology Chapter 3 And 4 Vocab > Chapter 3 > Flashcards

Chapter 3 Flashcards

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0
Q

Cohesion

A

The binding together of like molecules, often by hydrogen bonds

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1
Q

Polar molecule

A

A molecule (such as water) with opposite charges in different ends of the molecule

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2
Q

Adhesion

A

The attraction between different kinds of molecules

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3
Q

Surface tension

A

A measure of how difficult it is to stretch or break the surface of a liquid. Water has high ________ because of the hydrogen bonding of surface molecules

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4
Q

Solution

A

A liquid that is a homogeneous mixture of two or more substances

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5
Q

Solvent

A

The dissolving agent of a solution. Water is the most versatile ______ known.

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6
Q

Solute

A

A substance that is dissolved in a solution

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7
Q

Aqueous solution

A

A solution in which water is the solvent

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8
Q

Hydrophilic

A

Having an affinity for water

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9
Q

Hydrophobic

A

Having an aversion to water; tending to coalesce and form droplets in water

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10
Q

Acid

A

A substance that increases the hydrogen ion concentration of a solution

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11
Q

Base

A

A substance that reduces the hydrogen ion concentration of a solution

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12
Q

Buffers

A

A substance that consists of acid and base forms in a solution and that minimizes changes in pH when extraneous acids or bases are added to the solution

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13
Q

Acid precipitation

A

Rain, snow or fog that is more acidic than pH 5.2

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14
Q

Hydrocarbons

A

An organic molecule consisting only of carbon and hydrogen

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15
Q

Hydroxyl group

A

A chemical group consisting of an oxygen atom joined to a hydrogen atom. Molecules possessing this group are soluble in water and are called alcohols

16
Q

Organic chemistry

A

The study of carbon compounds (organic compounds).

17
Q

Functional groups

A

A specific configuration of atoms commonly attached to the carbon skeletons of organic molecules and usually found in chemical reactions

18
Q

Amino group

A

A chemical group consisting of a nitrogen atom bonded to two hydrogen atoms; can act as a base in solution, accepting a hydrogen ion and acquiring a charge of 1+

19
Q

Adenosine triphosphate (ATP)

A

An adenine-containing nucleoside triphosphate that releases free energy when it’s phosphate bonds are hydrolyzed. This energy is used to drive endergonic reactions in cells

20
Q

Phosphate group

A

A chemical group consisting of a phosphorus atom bonded to four oxygen atoms; important in energy transfer

21
Q

Methyl group

A

A chemic group consisting of a carbon bonded to three hydrogen atoms. May be attached to a carbon or to a different atom

AP Biology Chapter 3 And 4 Vocab (1 decks)

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