Cells

Question 1

Edema

Answer 1

Extra fluid outside cell

Question 2

Plasma membrane

Answer 2

Polar out, nonpolar in (phospholipids)

Question 3

What creates doors in the plasma membrane and what are they for?

Answer 3

Proteins; for macromolecules

Question 4

Ion channels

Answer 4

Na in, K out

Question 5

Glycocalyx

Answer 5

Extracellular matrices touch each other

Question 6

Extracellular matrix

Answer 6

Creates rigidity; anchors, shapes, positions cell movement; connected to cytoskeleton on inside of cell

Question 7

Tight Junctions

Answer 7

Lock cells together to prevent things from getting in between them (ziploc bag)

Question 8

Desmosomes

Answer 8

Add strength; tough thickened skin

Question 9

Gap Junctions

Answer 9

Channels between cells (hole in door)

Question 10

Cell Junctions

Answer 10

Passive transport moves toward equilibrium, active moves away

Question 11

Passive transport

Answer 11

Simple diffusion, facilitated diffusion, osmosis

Question 12

Simple diffusion

Answer 12

Material goes from high to low concentration

Question 13

Facilitated diffusion

Answer 13

Need ion channels (door), carrier or transport molecule

Question 14

Diffusion is influenced by…

Answer 14

Concentration, molecular size, temperature

Question 15

Tonicity

Answer 15

Difference between water in and out of a cell

Question 16

Isotonic

Answer 16

Nothing changes

Question 17

Hypertonic

Answer 17

Too much salt (lose water)

Question 18

Hypotonic

Answer 18

Cells take in water

Question 19

Active transport

Answer 19

Sodium-potassium pump; essential for muscle and nerve tissues to have ATP

Question 20

Secondary Active Transport

Answer 20

Move glucose into cell by hitching onto Na