Active Transport

Multiple Choice

Why is the cell membrane important for maintaining homeostasis in a cell?

• It controls the movement of substances in and out of the cell.

• It produces energy for the cell.

• It stores genetic information.

• It breaks down waste products.

Multiple Select

Which of the following statements about the sodium-potassium ATPase pump are correct?

• It moves sodium ions out of the cell.

• It moves potassium ions into the cell.

• It requires ATP to function.

• It moves ions with their concentration gradient.

Open Ended

Explain why energy is required for active transport but not for passive transport.

Fill in the Blanks

Active transport moves molecules

their concentration gradient.

Fill in the Blanks

The small membrane-bound structure that carries solutes during endocytosis is called a

.

Multiple Choice

Which process allows cells to engulf large molecules from the outside environment?

• Endocytosis

• Exocytosis

• Osmosis

• Diffusion

Multiple Choice

What is the main difference between endocytosis and exocytosis?

• Endocytosis moves materials into the cell, while exocytosis moves materials out of the cell.

• Endocytosis moves materials out of the cell, while exocytosis moves materials into the cell.

• Both endocytosis and exocytosis move materials into the cell.

• Both endocytosis and exocytosis move materials out of the cell.

Multiple Choice

Movement of particles from high to low concentration. 

• Passive Transport
• Active Transport

Multiple Choice

Moves substances Against the concentration gradient
low to high uses energy/ATP

• facilitated diffusion
• osmosis
• active transport
• diffusion

Multiple Choice

Which of the following statements correctly describes phagocytosis and pinocytosis?

• Phagocytosis involves ingestion of solid particles, while pinocytosis involves ingestion of liquids and small molecules.

• Phagocytosis involves ingestion of liquids, while pinocytosis involves ingestion of solid particles.

• Both phagocytosis and pinocytosis involve ingestion of only solid particles.

• Both phagocytosis and pinocytosis involve ingestion of only liquids.

Open Ended

Compare and contrast passive and active transport in terms of energy requirement and direction of molecule movement.

DOL

Multiple Choice

Susan sprayed perfume in one corner of the room.  John, who sits across the room and is allergic to perfume, soon begins to sneeze.  Perfume travels across the room by - 

• active transport.

• osmosis.

• endocytosis. 

• diffusion.

Fill in the Blanks

Endocytosis is the process by which materials are transported

the cell.

Multiple Select

Select all that are true about exocytosis.

• It moves materials out of the cell.

• It requires energy.

• It moves materials into the cell.

• It involves vesicles fusing with the plasma membrane.

Multiple Choice

Which of the following best describes the process of exocytosis?

• Moving molecules into the cell using vesicles

• Moving molecules out of the cell using vesicles that fuse with the plasma membrane

• Moving water across the cell membrane by osmosis

• Transporting ions through protein channels without energy

Multiple Select

Which of the following are types of passive transport?

• Simple diffusion

• Osmosis

• Facilitated diffusion

• Endocytosis

Fill in the Blanks

Active transport requires the use of

to move substances across the cell membrane.