Chapter 7 Flashcards
(13 cards)
1
Q
What’s the membrane made of?
A
Lipids and proteins
Phospholipids
2
Q
Embedded in the membrane
Kind of protein
A
Integral
3
Q
Loosely bound to surface of membrane
Type of protein
A
Peripheral
4
Q
Carbohydrates are necessary for:
A
Cell-cell recognition
5
Q
Movement of a molecule DOWN its concentration gradient
A
Diffusion
6
Q
Mvmt of WATER across selectively permeable membrane
A
Osmosi
7
Q
Ability of surrounding solution to cause a cell to gain/lose water
A
Toni city
8
Q
Isotonic
A
Environment same as cell
9
Q
Hypertonic
A
More solute in environment
10
Q
Hypotonic
A
Less solute in environment
11
Q
Provide doorway through membrane
A
Channel protein
12
Q
Change shape to shuttle molecule across membrane
A
Carrier proteins
13
Q
Movement of molecules AGAINST gradient (requiring ENERGY)
A
Active transport
