CHAPTER 3 MOVEMENT OF SUBSTANCES ACROSS PLASMA MEMBRANE

Name this structure

• cell wall

• phospholipid bilayer

• lipid layer

• mosaic

Main components of phospholipid bilayer

• pore protein and carrier protein

• glycoprotein and carrier protein

• phospholipid and proteins

• glycogen and proteins

• carrier protein

• pore protein

Which of the following is the characteristic of plasma membrane?

• Not permeable

• Fully permeable

• Semi permeable

• Less permeable

Movement of substances from the higher concentration region to the lower concentration region

• active transport

• passive transport

Which substances can easily diffuse through the phospholipid bilayer without using the pore and carrier protein?

• glucose

• amino acids

• vitamin A

• oxygen

• water

Which part repels water?

• hydrophilic head

• hydrophobic tail

What is the function of cholesterol in the plasma membrane?

• To facilitated diffusion of mineral ions

• To provide energy

• To stabilize the fluidity

• To protect phospholipid bilayer

Type of transport

• active transport

• simple diffusion

• facilitated diffusion

• osmosis

A process of water molecules diffuse from a region of low solute concentration to a region of high solute concentration through plasma membrane

• active transport

• simple diffusion

• facilitated diffusion

• osmosis