Paasive Transport Flashcards

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0
Q

Factors affecting rate of diffusion

A

Concentration gradient: diffusion rates will be higher if difference is
Distande
Area-larger area, greater rate
Barriers-thicker barriers slow diffusion rate

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1
Q

Diffusion

A

Movement of molecules from high to low concentration.

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2
Q

Fick’s Law

A

(Surface Area•diff in concentration across membrane)/length of difficult path (thickness of membrane

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3
Q

Carrier mediated facilitated diffusion

Used for?

A

Transmembrane CP specific to molecule

Glucose

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4
Q

Channel mediates facilitated diffusion. Used for?

A

Hydrophilic Pores that allow inorganic ions to pass through

Small polar molecules and ions

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5
Q

Water always diffuses from - to - solute concentration

A

Low to high

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6
Q

Hypotonic

A

Water concentration is higher than cell

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7
Q

Hypertonic

A

Water concentration is lower than the cell (plants like this)

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8
Q

Isotonic

A

Concentrations are equal

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