Cell Membrane and Transport

Question 1

Cell Theory

Answer 1

idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells

Question 2

Cell Membrane

Answer 2

The protective barrier that encloses a cell

Question 3

Cell Membrane contains…

Answer 3

proteins, lipids, and phospholipids (2 layers)

Question 4

Cell Membrane Lipids include

Answer 4

Fats and Cholesterol do not dissolve in water

Question 5

Phospholipids

Answer 5

A lipid that contains phosphorus

Question 6

Lipids are…

Answer 6

Hydrophobic

Question 7

Hydrophilic

Answer 7

Water loving

Question 8

what have a Cell Membrane and a Cell Wall?

Answer 8

Plants, Fungi, Bacteria

Question 9

If the cell just has a Cell Membrane…

Answer 9

Then, it has a Skeletal Structure

Question 10

If the cell has a Cell membrane AND Cell Wall…

Answer 10

Then they need a structure from the Cell Wall.

Question 11

Plants cell wall is made out of…

Answer 11

Cellulose

Question 12

Cellulose

Answer 12

a fiber humans can’t digest in diet

Question 13

Bacteria and Fungi Cell walls…

Answer 13

are not made out of Cellulose

Question 14

Bacteria and Fungi cell walls need

Answer 14

Water and Carbon Dioxide - They are Porous

Question 15

Cell Membrane Function

Answer 15

Separates the components of a cell and its environment; regulates flow of materials into and out of cell; maintains homeostasis.

Question 16

What will happen if the cell does not maintain Homeostasis?

Answer 16

the cell dies

Question 17

passive transport

Answer 17

A process that does not require energy to move molecules from high to low concentration

Question 18

diffusion

Answer 18

The movement of small particles across a selectively permeable membrane like the cell membrane until equilibrium is reached.

Question 19

Where does Diffusion move from?

Answer 19

an area from high concentration to an area of low concentration.

Question 20

Osmosis

Answer 20

Diffusion of water through a selectively permeable membrane

Question 21

Where does Osmosis move from?

Answer 21

diffuses across a membrane from an area of high concentration to low concentration.

Question 22

Extracellular Space

Answer 22

outside/exterior of cell

Question 23

Intracellular Space

Answer 23

Inside/Interior of cell

Question 24

Facilitated Diffusion

Answer 24

movement of larger molecules like glucose through the cell membrane.

Question 25

How does facilitated diffusion work?

Answer 25

Proteins in the membrane form channels for large molecules to pass through.

Question 26

Hypertonic Solutions

Answer 26

Water diffuses out of the cell

Question 27

Hypertonic Solutions have…

Answer 27

high concentrations of solute - outside than inside

Question 28

Hypotonic Solutions

Answer 28

Water diffuses out of the cell. Causing the cell to shrivel and sink

Question 29

Hypotonic Solutions have

Answer 29

high concentrations of solute - inside than outside

Question 30

Isotonic Solutions

Answer 30

water diffuses in and out of cell at same, equal rate.

Question 31

Isotonic Solutions have..

Answer 31

equal concentrations of solute

Question 32

Active Transport

Answer 32

the movement of molecules from low to high concentration energy is required

Question 33

Endocytosis & Exocytosis

Answer 33

the mechanism by which very large molecules (such as foods and wastes) get into and out of the cell. this requires energy so it’s active transport.

Question 34

cyto-

Answer 34

cell

Question 35

-sis

Answer 35

process

Question 36

endo-

Answer 36

into

Question 37

exo-

Answer 37

out

Question 38

Endocytosis

Answer 38

into cell process

Question 39

Exocytosis

Answer 39

output cell process