Quiz on Cellular Transport

What is the primary function of the plasma membrane?

• To provide energy to the cell

• To store genetic information

• To regulate the cell's transport processes

• To synthesize proteins

Which type of transport does not require energy?

• Facilitated diffusion

• Exocytosis

• Active transport

• Endocytosis

What is osmosis?

• Endocytosis of large particles

• Active transport of ions

• Diffusion of water across a selectively permeable membrane

• Movement of solutes across a membrane

What happens to a cell in a hypertonic solution?

• It shrinks as water leaves the cell

• It absorbs more solute

• It remains unchanged

• It swells and may burst

Which of the following describes facilitated diffusion?

• Involves transport proteins

• Requires energy to move substances

• Is the same as osmosis

• Moves substances against their concentration gradient

What is the role of transport proteins in passive transport?

• To provide energy for transport

• To assist large molecules across the membrane

• To create vesicles for transport

• To synthesize proteins

What is a characteristic of isotonic solutions?

• Higher solute concentration outside the cell

• Equal solute concentration inside and outside the cell

• Lower solute concentration outside the cell

• Causes cells to burst

Which process involves the engulfing of large particles by the cell?

• Facilitated diffusion

• Receptor-mediated endocytosis

• Phagocytosis

• Pinocytosis

What is the function of exocytosis?

• To import substances into the cell

• To export materials from the cell

• To create energy for the cell

• To synthesize proteins

What does the term 'selectively permeable' refer to?

• Allows only certain substances to pass through

• Only allows gases to pass through

• Allows all substances to pass through

• Prevents any substances from passing through