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biology > Chapter 2 Vocabulary > Flashcards

Chapter 2 Vocabulary Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Atom

A

The basic unit of matter

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2
Q

Nucleus

A

Where protons and neutrons bind

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3
Q

Electron

A

Negative charged particles

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4
Q

Element

A

Pure substance

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5
Q

Isotopes

A

Atoms of the same element that differ in the number of neutrons the contain

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6
Q

Compound

A

Substance formed by mixture of two elements

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7
Q

Ionic bond

A

One or more electrons are transferred to atoms

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8
Q

Ions

A

Positively charged and negatively charged atoms

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9
Q

Covalent bond

A

Moving electrons travel about the nucleus of an atom

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10
Q

Molecule

A

The smallest unit of compounds

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11
Q

Van der waals forces

A

Intermolecular forces of attraction

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12
Q

Hydrogen bond

A

Attraction between positive hydrogen. And partial negative charge

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13
Q

Cohesion

A

Attraction between molecules of the same substance

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14
Q

Adhesion

A

Attractions between molecules of different substances

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15
Q

Mixture

A

Material composed of two or more elements

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16
Q

Solution

A

All components are evenly distributed

17
Q

Solute

A

The substance that is dissolved

18
Q

Solvent

A

Does the dissolving

19
Q

Suspensions

A

Mixture of water and undissolved substance

20
Q

PH scale

A

Measures concentration of hydrogen ions

21
Q

Acid

A

Forms hydrogen ions

1-6

22
Q

Buffers

A

Prevent sudden change in pH

23
Q

Monomers

A

Smaller unit make up polymers

24
Q

Carbohydrate

A

Compound made of carbon

25
Q

Monosccharides

A

Single sugar molecules

26
Q

Lipids

A

Carbon and hydrogen

Used to store energy

27
Q

Nucleic acid

A

Macros contains hydrogen oxygen nitrogen carbon and phosphorous

28
Q

Nucleotide

A

5 carbon
Sugar
Phosphate group
Nitrogenous base

29
Q

Proteins

A

Macro molecules that contain nitrogen carbon hydrogen and oxygen

30
Q

Amino acids

A

Compound with amino group

31
Q

Substrate

A

Reactant of enzyme & catalyst

biology (5 decks)

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