Cell Membrane Study Guide Flashcards Preview

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Flashcards in Cell Membrane Study Guide Deck (23):
1

Movement of from high to low concentration ( no molecules energy and no carrier protein)

Diffusion

2

The difference in concentration between two regions

concentration gradient

3

the solid that is dissolved in a solution

solute

4

the liquid that dissolves the solute in a solution

solvent

5

the pressure of water moving across membranes caused by a concentration gradient

osmotic pressure

6

solution that has the same concentration of solute as the cells it surrounds

isotonic solution

7

solution that has greater concentration of solute vs. in the cell (will lose water and shrink)

Hypertonic solution

8

solution that has lesser concentration of solute vs. in the cell (will gain water and may lysis)

Hypotonic solution

9

shrinking of a plant cell (witting) due to being placed in a hypertonic solution

Plasmolysis

10

Hydrostatic pressure due to a plant cell being placed in a hypotonic solution. Is the pressure on inside of the plant cell against the cell wall.

Tugor pressure

11

Type of transport that goes with the concentration gradient (high to low) needs a carrier protein but does not require energy

Facilitated Transport

12

shrinking of animal cells placed in hypertonic solutions

crenation

13

type of transport that goes from low to high and needs both a carrier protein and energy

Active Transport

14

cells bringing in materials by cell membrane forming vesicle around substance

endocytosis

15

endocytosis of large particles (large enough to be seen with light microscope)

Phagocytosis

16

"Cell drinking"- endocytosis of small particles (i.e. an electron microscope is needed)

Pinocytosis

17

Vesicle inside cell fuses with cell membrane, depositing contents on the outside

Exocytosis

18

carbohydrate attacked to phospholipid on cell membrane. often serves in cell identification and communication

Glycolipid

19

Current model of membrane structure. A phospholipid fluid sea is embedded with a wide variety (mosaic) of protein molecules

Fluid mosaic model

20

movement of water from high to low concentration

osmosis

21

a cell is isotonic to a solution of 0.01 % sugar. What concentration would be hypertonic?

> 0.01 %

22

A cell is isotonic to a solution of 0.01 % sugar. What concentration would be hypotonic?

<0.01 %

23

If a cell uses active transport to take in salts, what will follow the salt ad also enter the cell

water