Exploring Membrane Transport in IB Biology

What is the main difference between passive and active transport?

• Active transport moves particles from high to low concentration, while passive transport moves them from low to high concentration.

• Passive transport requires energy, while active transport does not.

• Active transport only occurs in animal cells, while passive transport occurs in all cells.

• Passive transport moves particles from high to low concentration without energy, while active transport moves them from low to high concentration with energy.

Which of the following is NOT a type of passive transport?

• Osmosis

• Simple diffusion

• Protein pumps

• Facilitated diffusion

What is required for facilitated diffusion to occur?

• ATP

• A semi-permeable membrane

• Both ATP and carrier proteins

• Carrier proteins

Which process involves the movement of water across a semi-permeable membrane?

• Simple diffusion

• Facilitated diffusion

• Osmosis

• Active transport

In a hypotonic solution, what happens to a cell?

• It shrinks

• It swells

• It bursts

• It remains the same

What is the role of the sodium-potassium pump in active transport?

• It moves sodium ions into the cell and potassium ions out of the cell.

• It moves sodium ions out of the cell and potassium ions into the cell.

• It moves both sodium and potassium ions into the cell.

• It moves both sodium and potassium ions out of the cell.

Which molecule provides the energy required for active transport?

• Carbon dioxide

• Glucose

• ATP

• Oxygen

What is endocytosis?

• The process of moving substances into the cell

• The process of moving substances out of the cell

• The process of moving ions against the concentration gradient

• The process of moving water across a membrane

Which type of endocytosis involves the intake of large particles?

• Pinocytosis

• Phagocytosis

• Osmosis

• Exocytosis

What is the function of the Golgi apparatus in exocytosis?

• To break down waste materials

• To produce ATP

• To wrap materials in vesicles for transport out of the cell

• To synthesize proteins