Plasma membrane and transport

Functions of the plasma membrane:

Select ALL THAT APPLY

• Communication between cells

• Response to external stimuli

• Cell rigidity

• Production of ATP

• Selective permeability

Components found in the cell membrane or plasma membrane

Select ALL that APPLY

• carbohydrates

• lipids

• proteins

• DNA

• Water

According to the fluid mosaic model, the plasma membrane is a mosaic of components—primarily, phospholipids, cholesterol, and proteins—that do not move freely, phospholipids and proteins are STATIC and FIXED in a single position

• TRUE

• FALSE

Name of the property of the plasma membrane when it shares both a HYDROPHOBIC and a HYDROPHILIC region

Molecule responsible for mainly provide stability and fluidity to the plasma membrane

• PHOSPHOLIPIDS

• GLYCOPROTEINS

• GLYCOLIPIDS

• INTEGRAL PROTEINS

• CHOLESTEROL

if we had phospholipids floating in an aqueous solution , they will spontaneously arrange .........

• with the heads of the phospholipids facing the water and the tails hidden

• with the tails of the phospholipids facing the water and the heads hidden

At high temperatures, high amounts of cholesterol decrease the fluidity of the cell membrane.

• TRUE

• FALSE

This is an example of :

• INTEGRAL PROTEINS

• PERIPHERAL PROTEINS

• PROTEIN CHANNEL

LIPIDS LINKED TOGETHER TO A CARBOHYDRATE ARE CALLED GLYCOPROTEIN

• TRUE

• FALSE

DIFUSSION IS AN EXAMPLE OF

• ACTIVE TRANSPORT

• PASSIVE TRANSPORT