Cell Membrane Flashcards Preview

Biology 2015-2016 > Cell Membrane > Flashcards

Flashcards in Cell Membrane Deck (14):
1

Parts of the cell membrane

Cell membrane
Proteins
Lipid bilayer
Carbohydrates
Transport protein
Phospholipids

2

The cell membrane regulates

What enters and what leaves the cell

3

What does the cell membrane do for the cell

Regulates what enters and leaves the cell
Provides protection and support for the cell

4

The proteins are embedded in the

Lipid bilayer

5

The lipid bilayer gives the membrane a flexible structure that forms a

Strong barrier between the inside and the outside of the cell

6

Many of the proteins form what to help move materials across the membrane

Channels and pumps

7

The carbohydrates serve as...

Identification makers to help individual cells to identify one another

8

Homeostasis:

A balance that organisms maintain through self-regulating adjustments

9

Cell membrane is also called...

A selectively permeable membrane or a semipermeable membrane

10

What can the cell membrane control

Can decide what can come into the cell
Can decide the speed they are allowed to enter

11

In the concentration gradient in the absence of other forces, materials will tend to...

Move from an area of high concentration to an area of lower concentration

12

When an equal amount of concentration has been achieved it is called

Equilibrium

13

Passive transport definition

No energy is being used to move molecules across the membrane

14

Diffusion in passive transport definition

The spreading out of molecules from a region of high concentration toa region of low concentration