Plasma membrane functions

Main role of the plasma membrane

• Produce proteins for cell function

• Production of energy

• Isolate the cell contents from the outside medium

• Give the appearance to the cell

What is this component of the cell membrane

• Cholesterol

• Fat

• Phospholipid

• Membrane protein

This component of the membrane provides stability:

• Cholesterol

• Water

• Phospholipid

• Carbohydrates

The cell membrane is a phospholipid bilayer. What does BILAYER stands for?

• Two components: proteins and fats

• Two layers of phospholipids

• A pink layer and a blue layer

• Hidrophobic and hydrophilic

There are passive transport does not require ( ):

(a)  

Of the folowing processes, which ones are active:

1. diffusion

2. osmosis

3. facilitated diffusion

• 1 and 2 only

• 1 and 3 only

• 2 only

• none

A particle is transported by a cell in the direction shown. Is that passive or active?

• Active

• Passive

What is occuring at this situation (one word)

(a)  

What is the only process that can transport chlorine outwards?

• Diffusion

• Facilitated diffusion

• Osmosis

• Active transport

What will happen to the cell in the image?

• It will swell (hincharse)

• It will shrink (encogerse)

• It will remain the same size

• It will gain water