Cell Membrane Flashcards

(30 cards)

0
Q

Selectively permeable

A

Some substances may pass through while others may not

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1
Q

Cell membrane function

A

Maintain homeostasis within a cell

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2
Q

Structure relates to

A

Function

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3
Q

Membrane lipids are aka

A

Phospholipids

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4
Q

Structure of phospholipids

A

1) phosphate polar heads

2) fatty acid tails

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5
Q

Phosphate polar heads are

meaning

A

Hydrophilic which means water loving

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6
Q

Fatty acid tails are

meaning

A

Hydrophobic meaning water repelling

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7
Q

Peripheral proteins

A

Located on the interior and exterior surfaces of the membrane

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8
Q

Integral proteins

A

Are embedded in the bilayer and are exposed to at least one or both surfaces of the membrane

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9
Q

Glycoproteins

A

Are integral proteins having specialized carbohydrate chains attached to it

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10
Q

Passive transport

A

The movement of materials across the cell membrane without requiring ATP

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11
Q

Diffusion

A

The process in which particles move from an area of high concentration to an area of lower concentration

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12
Q

Concentration gradient

A

The differences btw concentrations of substances in different areas

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13
Q

Equilibrium

A

State of balance

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14
Q

Osmosis

A

The diffusion of water through a selectively permeable membrane

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15
Q

Isotonic

A

The concentration of solute particles outside the cell is the same as the inside of the cell

16
Q

Hypotonic

A

Concentration of solute particles outside the cell is lower than the concentration of solute inside of the cell

17
Q

Hypertonic

A

Concentration of solute particles outside the cell is higher than the concentration of solute inside the cell

18
Q

Cytolosis

A

The bursting of cells

19
Q

Facilitated diffusion

A

The process of moving substances across the membrane but requires assistance from me range proteins

20
Q

Aquaporins

A

A type of channel protein that assists proteins

21
Q

Carrier proteins

A

Membrane proteins that change shape to move substances across the cell membrane

22
Q

Ion channels

A

Specialized membrane proteins that move move specific ions across the cell membrane

23
Q

Active Transport

A

Requires ATP to move substances from low to high concentration

24
Cell membrane pump
Specialized membrane proteins that use energy from ATP to pump small molecules or ions across the cell membrane
25
Endocytosis
The process of moving large quantities of materials into the cell
26
Vesicle
Membrane bound organelle formed from the cell membrane forming a pocket around the particle
27
Pinocytosis
Cell drinking
28
Phagocytosis
Cell eating
29
Exocytosis
Process that moves large quantities of materials out of the cell