Chapter 7 Flashcards

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1
Q

Cell membrane purpose

A

To regulate the ongoing exchange of intracellular and extracellular environments

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2
Q

Benefits of cell membranes

A

Makes it possible for cells to get vital raw material like oxygen, sugars, amino acids,→ can rid themselves of waste and maintain a healthy electrical balance

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3
Q

What are two passive means of exchange

A

Diffusion and osmosis

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4
Q

Osmosis only occurs with

A

Water

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5
Q

Simple vs facilitated diffusion

A

Simple diffusion occurs across the membrane but facilitated diffusion occurs through a selective transport proteins

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6
Q

Active transport needs

A

ATP and protein to carry out their task

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7
Q

Pinocytosis

A

The process where a cell engulfs water

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8
Q

Phagocytosis

A

Engulfs solid object like pathogens

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9
Q

Endocytosis

A

Cholesterol is picked up by liver cells using this method

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10
Q

Fluid mosaic model

A

The molecular arrangement of the cell membrane

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11
Q

Exocytosis

A

Expels contents to the outside of the cell

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12
Q

Simple diffusion

A

Movement of molecules down the concentration gradient

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13
Q

Phospholipids have a……

A

Hydrophilic head and a hydrophobic body

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14
Q

Intracellular compartment

A

The fluid inside of the coll

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