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Biology > Transport and the Cell Membrane > Flashcards

Transport and the Cell Membrane Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Hydrophobic

A

Repels water

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2
Q

Hydrophilic

A

Attracts water

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3
Q

Covalent Bond

A

The sharing of electron pairs between two atoms

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4
Q

Polar

A

one side is more positive than the other

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5
Q

Ion

A

A charged atom

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6
Q

Nonpolar

A

electrons are shared equally all around

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7
Q

Lipid

A

a fat

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8
Q

Phospholipid

A

Has a hydrophilic head and hydrophobic tail

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9
Q

Protein

A

a molecule made up of amino acids that make up the phenotype of an organism

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10
Q

Solubility

A

the capability of being dissolved

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11
Q

Phenotype

A

appearance

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12
Q

Solute

A

Substance that dissolves in a solvent

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13
Q

Solvent

A

A substance that dissolves solutions

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14
Q

Molarity

A

How much solute is in a solvent

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15
Q

Tonicity

A

Comparing molarity between two solutions

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16
Q

Concentration Gradient

A

A change in concentration of solutes in a solution

  • How much “stuff” is in a solution
  • How much tonicity
17
Q

Electrical GRadient

A

Difference in charge, so they want to spread and create a mix

18
Q

Passive Transport

A

Movement of molecules through a cell membrane without energy

19
Q

Active Transport

A

Movement of molecules through a cell membrane with energy

20
Q

Diffusion

A

the passive movement of molecules or particles along a concentration gradient from high to low

21
Q

Osmosis

A

The diffusion of water

22
Q

Number of major parts in an atom

A

2

23
Q

Major parts in an atom

A
  • Orbitals (contains electrons)

- Nucleus (contains protons and neutrons)

24
Q

Charge of Electrons

A

Negative

25
Q

Charge of Neutrons

A

Neutral/No charge

26
Q

Charge of Protons

A

Positive

27
Q

Atomic Number

A
  • Tells the number of protons in the nucleus and electrons on the orbital
28
Q

Isotope

A

An atom that contains a different number of neutrons than other atoms of that element

29
Q

Chemical Reactivity

A

The way chemicals react with other chemicals

30
Q

Cytoplasm

A

watery fluid that is inside of a cell

Biology (5 decks)

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