Cell Structure and Function

What allows lateral movement of proteins in the membrane?

• Permeability
• Diffusion
• Osmosis
• Fluidity

What maintains the selective permeability of the cell membrane?

• Nucleus
• Ribosomes
• Mitochondria
• Phospholipid bilayer and proteins

What is an example of bulk transport?

• Osmosis
• Simple diffusion
• Facilitated diffusion
• Endocytosis

What term describes the movement of substances against their concentration gradient?

• Passive transport
• Simple diffusion
• Facilitated diffusion
• Active transport

What process allows large molecules to enter the cell via vesicle formation?

• Exocytosis
• Diffusion
• Osmosis
• Endocytosis