Cellular Transport Flashcards

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1
Q

Cellular Transport

A

How materials get into and out of the cell

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2
Q

Cell membranes are ________

A

Selectively Permeable

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3
Q

Passive Transport Definition

A

A process that does not require energy to move
molecules from a HIGH to LOW concentration

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4
Q

Passive Transport Examples

A

Diffusion
Facilitated Diffusion
Osmosis

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5
Q

Diffusion

A

Movement of small particles across a
selectively permeable membrane like the cell membrane until equilibrium is reached. HIGH TO LOW CONCENTRATION

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6
Q

Osmosis

A

diffusion of water through a selectively
permeable membrane like the cell membrane, Water diffuses across a membrane from an area of HIGH concentration to and area of LOW concentration

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7
Q

Facilitated Diffusion

A

movement of larger molecules like glucose through the cell membrane larger molecules must be “helped”

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8
Q

Hypertonic Solutions

A

High concentration of solute.
Cell in HYPERTONIC solution, water diffuses out of cell. Causes cell to shrivel

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9
Q

Hypotonic Solutions

A

Low concentration of solute.
Cell in HYPOTONIC solution, water diffuses into cell.
Causes cell to swell.

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10
Q

Isotonic Solutions

A

Cell in ISOTONIC solution, water
diffuses in and out of cell at same rate. Equal

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11
Q

Active Transport

A

movement of molecules from LOW to HIGH
concentration. Energy is required as molecules must be pumped against the concentration gradient.

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