Plasma Membrane Transport

Which structure of the plasma membrane can serve as a transport protein during facilitated diffusion?

• A

• B

• C

• D

• E

Answer explanation

The structure labelled as D is an integral protein known as an ion channel. It is a channel protein that provides a channel that ions can use as a passageway through a membrane.

Based on the diagram, which side will gain water?

• A

• B

Answer explanation

Side A has a greater water concentration than side B. In osmosis, water molecules move from high water concentration to low water concentration. Hence, water will travel from A to B.

Which form of active transport is being shown?

• Facilitated Diffusion

• Exocytosis

• Endocytosis

• Proton pump

What type of molecules CANNOT easily diffuse through the cell membrane and would need a protein to help them?

• Small Molecules

• Large Molecules

• Charged Molecules

• Nonpolar Molecules

Which is true about passive transport?

• molecules move from low to high

• ATP is required

• molecules move from high to low

• ATP is not required

Which form of passive transport uses protein channels to help molecules enter the cell?

• facilitated diffusion

• osmosis

• diffusion

• sodium potassium pump

Forms vesicles to help with movement across the membrane. Check all that apply

• endocytosis

• exocytosis

• pinocytosis

• phagocytosis

What type of transport would use the structure shown in the picture?

• Facilitated Diffusion

• Diffusion

• Endocytosis

• Protein Pump

What type of transport is this?

• Osmosis

• Endocytosis

• Exocytosis

• Protein Pump

The diagram is depicting which plasma membrane process?

• Osmosis

• Receptor-mediated endocytosis

• Exocytosis

• Cell division