Cellular Transport

Question 1

Do all cells have a membrane?

Answer 1

Yes

Question 2

Cell membranes control what enters and exits the cell to maintain internal balance called _____

Answer 2

homeostasis

Question 3

What provides protection and support for the cell?

Answer 3

Cell Membrane

Question 4

Lipid Bilayer

Answer 4

two layer of lipid molecules are packed with their hydrophobic tails pointing inward and their hydrophilic heads outward (Butts together)

Question 5

Phospholipid

Answer 5

molecule that is the main component of a cell membrane

Question 6

Phosphate head is _________________

Answer 6

polar (water loving)

Question 7

Fatty acid tail is __________________

Answer 7

nonpolar (water fearing)

Question 8

________ are embedded in cell membranes

Answer 8

protiens

Question 9

What is constantly moving in a cell membrane?

Answer 9

fluid

Question 10

______ heads love water and dissolve.

Answer 10

Hydrophilic

Question 11

________ tails hide from water

Answer 11

Hydrophobic

Question 12

What is a lipid bilayer?

Answer 12

Universal component of all cell membranes made up of two layers of fatty acid.

Question 13

Cell membranes have ____ that helps the structure be selective.

Answer 13

pores

Question 14

Selectively permeable means:

Answer 14

Allows some molecules in and keeps other out

Question 15

What is inside of a cell?

Answer 15

cytoplasm

Question 16

Passive Transport doesn’t use cell energy, instead it uses:

Answer 16

diffusion, facilitated diffusion and osmosis

Question 17

Active Transport uses cell energy with:

Answer 17

protein pumps, endocytosis and exocytosis

Question 18

What is endocytosis?

Answer 18

a process by which cells absorb external material by engulfing it with the cell membrane (wrap around the birthday cake)

Question 19

What is exocytosis?

Answer 19

the process by which cells move materials from within the cell into the extracellular fluid (ATP breaks to create energy and move material)

Question 20

What is a protein pump?

Answer 20

transmembrane proteins, which are involved in the active transport of ions across the membrane against the concentration gradient

Question 21

What is Facilitated Diffusion

Answer 21

is a type of diffusion in which the molecules move from the region of higher concentration to the region of lower concentration assisted by a carrier Assisted by a carrier - bicycle downhill

Question 22

What is Osmosis

Answer 22

osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell’s partially permeable membrane. Waterslide downhill

Question 23

Which part of the cell membrane is hydrophobic?

Answer 23

Tail

Question 24

Which part of the cell membrane is hydrophilic?

Answer 24

Head