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Cell Membrane > Cell Membrane > Flashcards

Cell Membrane Flashcards

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
Q

Cell membrane pump

A

Specialized membrane proteins that use energy from ATP to pump small molecules or ions across the cell membrane

25
Q

Endocytosis

A

The process of moving large quantities of materials into the cell

26
Q

Vesicle

A

Membrane bound organelle formed from the cell membrane forming a pocket around the particle

27
Q

Pinocytosis

A

Cell drinking

28
Q

Phagocytosis

A

Cell eating

29
Q

Exocytosis

A

Process that moves large quantities of materials out of the cell

Cell Membrane (1 decks)

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