Cell Transport

Question 1

surrounds the cell
provides a boundary
also known at plasma membrane

Answer 1

cell membrane

Question 2

what molecules move in and out of the cell?

Answer 2

Water
Sugar
Carbon dioxide
Oxygen
Amino acids
wastes

Question 3

process of maintaining the cell’s environment

Answer 3

Homeostasis

Question 4

membrane allows some molecules to pass into/out of the cell but blocks others

Answer 4

Selectively permeable

Question 5

parts of plasma membrane

Answer 5

phospholipids
cholesterol
carbohydrates
transport proteins

Question 6

most of the plasma membrane is made of ______

Answer 6

phospholipids

Question 7

2 layers of phospholipida

Answer 7

Phospholipid bilayer

Question 8

polar part of phospholipid

Answer 8

head

Question 9

non polar part of phospholipid

Answer 9

tail

Question 10

water fearing

Answer 10

hydrophobic

Question 11

water loving

Answer 11

hydrophilic

Question 12

molecules have a difficult time moving through the membrane

Answer 12

nonpolar

Question 13

FLUID mosaic model

Answer 13

the membrane is flexible
proteins move between the phospholipids

Question 14

Fluid MOSAIC model

Answer 14

made of many parts
the membrane is made of many parts

Question 15

the more spread apart the phospholipids the easier it is for molecules the move inside and outside the cell
keeps the phospholipids from sticking together

Answer 15

Cholesterol

Question 16

sugar on the outside of the cell membrane
allows the cell to be identified

Answer 16

carbohydrates

Question 17

channels that move molecules into and out of the cell

Answer 17

transport proteins

Question 18

a molecule binds to the protein
a message is sent through the protein to the cell

Answer 18

receptor proteins