A+P Ch 3: Cell Part 2

Front 1

outer lining of the cell is called? and what is its function?

Back 1

plasma membrane, selective barrier, communication, sercretion

Front 2

What 2 things can pass through the membrane?

Back 2

glucose and H2O...glucose needs help tho

Front 3

Plasma membrane can be smooth or rough, why does it have folds?

Back 3

increases surface area of mem. abosrbs more molecules

Front 4

What other components are in the bilayer?

Back 4

glycolipids and cholesterol

Front 5

what does cholesterol do? what happens if you have too much cholesterol?

Back 5

makes membranes more rigid, less fluid! athrosclerois-too much cholesterol between phospholipids causing cell to become more rigid not able to move so bv cant stretch, blood is being pumped and pressure builds up and bursts becoming an anerysm

Front 6

what type of protein forms channels and has carriers?

Back 6

integral

Front 7

fingerlike extensions, increase surface area for absorption

Back 7

microvilli

Front 8

3 types of cell junctions?

Back 8

tight, desmosomes, gap junctions

Front 9

this junction fuses membrance together, protects from leakage ex: stomach

Back 9

tight junction

Front 10

this junction anchors, distribute tension and prevents tearing...found in skin, heart, muscle

Back 10

desmosomes

Front 11

this junction hollow center allows ions and molecules to pass thru, connects 2 cells

Back 11

gap junctions