Cellular Transport Flashcards

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0
Q

ATP

A

Molecule that provides energy for active transport

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1
Q

Active transport

A

Requires energy to move molecules across membranes

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2
Q

Exocytesis

A

Used by Golgi bodies to release molecules outside the cell

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3
Q

Diffusion

A

Moves oxygen and carbon dioxide molecules from a high concentration to a low concentration across membranes

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4
Q

Mitochondria

A

Cell organelles that burn glucose and provide ATP for active transport

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5
Q

Osmosis

A

Water moves across membranes

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6
Q

Pinocytosis

A

Kind of endocytosis that takes in small dissolved molecules (solutes) or fluids

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7
Q

Passive

A

Does NOT require energy

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8
Q

Facilitated diffusion

A

Carrier proteins grab glucose molecules, change shape, and flip to the other side of the membrane, like a revolving door

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9
Q

Carrier protein

A

Integral membrane protein that helps move molecules across a cell membrane

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10
Q

Cell placed in isotonic solution

A

Neither swells or shrinks because the concentration of molecules outside the cell is the same as inside

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11
Q

Hypertonic

A

Solution in which there is a HIGHER concentration of molecules OUTSIDE the cells inside

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12
Q

Concentration gradient

A

Forms whenever there is a difference in concentration between one place and another

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13
Q

Active transport

A

Pinocytosis, phagocytosis, and na+-k+ pumps

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14
Q

Hypotonic

A

A solution in which the concentration of molecules outside the cell is LOWER than inside

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15
Q

Sodium-Potassium-Pump

A

Uses ATP to move 3 Na+ ions out of a cell while it moves 2 K+ ions in

16
Q

Endocytosis

A

Types: pinocytosis, phagocytosis

17
Q

Osmotic/turgor pressure

A

Caused by water inside a plant cell pushing against a cell wall

18
Q

Exocytosis

A

Cells release large amounts of material in this process

19
Q

Swelling and bursting of cells

A

Hypotonic

20
Q

Shrinking of cells

A

Hypotonic

21
Q

Water leaves a plant cell

A

Osmotic/turgor pressure will decrease

22
Q

If solute is unable to pass through the dividing membrane

A

Water level will rise in hypertonic solution