cell membrane test 4

Question 1

phospholipid function

Answer 1

maintain barrier between the cell and its external enviroment

Question 2

parts of phospholipid

Answer 2

a polar hydrophillic head and non polar hydro phobic tails

Question 3

what is a peripheral protein

Answer 3

attaches to integral protein or lipids bilayer and is not embedded

Question 4

what s the function of a peripheral protein

Answer 4

cell to cell communication

Question 5

what are intergral proteins

Answer 5

proteins that are emmbedded into the cell membrane

Question 6

what are examples of integral proteins

Answer 6

any transport proteins

Question 7

what are channel proteins

Answer 7

a protein that helps molecules pass through

Question 8

what type of transport is channel protein

Answer 8

facilitated diffusion

Question 9

does the use of channel proteins require energy

Answer 9

no

Question 10

what are carrier proteins

Answer 10

a protein that helps move thing in and out of the cell with energy

Question 11

what is needed for a carrier protein

Answer 11

atp

Question 12

what is a glycoprotein

Answer 12

protein with a carb attached

Question 13

what are the functions of glycoprotein

Answer 13

transport, cell attechement, regognition , lubricant and protective agent

Question 14

where does the carb of the glycoprotein go

Answer 14

on the outside

Question 15

what is an isotonic solution

Answer 15

a solution with the same concentration inside and outside the cell

Question 16

how does water flow with a cell in a isotonic solution

Answer 16

it flows evenly in and out

Question 17

what is a plant cell inside an isotonic solution

Answer 17

flacid

Question 18

what is a hypertonic solution

Answer 18

a solution with a higheer concentration outside than inside the cell

Question 19

how does water flow insdie the cell with an hypertonic solution

Answer 19

it flows out of the cell

Question 20

what would happen to a cell in aq hypertonic solution

Answer 20

the cell membrane would shrink and shrivel

Question 21

where is water or solution stored in a plant

Answer 21

central vacuole

Question 22

what is a plant cell in a hypertonic solution

Answer 22

plasmalyzed

Question 23

what is a hypotonic solution

Answer 23

a solution that has a lower concentration of solutes than inside the cell

Question 24

where does water flow in an hypottonic solution

Answer 24

it flows inside the cell

Question 25

what happens when a lot of water flows into a animal cell

Answer 25

the membrane ruptures and the cell lyses

Question 26

what heppens when a lot of water flows into the plant cell

Answer 26

it dosent lyse but it expands a little and the central vacuole expands

Question 27

why dosent a plant cell lyse with too much water

Answer 27

cell wall

Question 28

what is a plant cell with a hypotonic solution

Answer 28

turgid

Question 29

what is diffusion

Answer 29

movement of solutes for high to low concentration

Question 30

does diffusion re quire energy

Answer 30

no

Question 31

what molecues can diffuse

Answer 31

oxygen and carbon dioxide etc

Question 32

what is osmosis

Answer 32

movement of water from high to low concentration

Question 33

what is the universal solvent

Answer 33

water

Question 34

what does water follow in osmosis

Answer 34

the higher concentration of solutes

Question 35

what is facilitated diffusion

Answer 35

movement of larger molecules from high to low concentration with a membrane protein

Question 36

does facilitated diffusion require energy

Answer 36

no

Question 37

why cant most proteins pass through membrane

Answer 37

they are too large

Question 38

how to amino acids pass through the membrane

Answer 38

with help from channel protein

Question 39

how do carbs pass through the membrane

Answer 39

the monomer can but not the polymers

Question 40

what are two variables for membrane travel

Answer 40

size and concentration

Question 41

what is active transport

Answer 41

movement of molecules from low to high concentraion witha membrane protein

Question 42

what does active transport require

Answer 42

energy

Question 43

how does alt enter or exit a cell

Answer 43

protein

Question 44

how does glucose enter and exit the cell

Answer 44

chennel protein

Question 45

what does more solutes mean

Answer 45

lower amount of water

Question 46

how many layers of phospholipids are there

Answer 46

2

Question 47

how does the pracrmecium retain homeostasis

Answer 47

pumps out water

Question 48

what type of solution is the paramecium pumping

Answer 48

hypotonic

Question 49

what doe sthe contractile vacuole do

Answer 49

pump water os it does not lyse