Exploring Diffusion, Osmosis, and Transport Mechanisms

What is the primary characteristic of passive transport?

• It involves the use of carrier proteins.

• It moves materials from high to low concentration.

• It moves materials from low to high concentration.

• It requires energy.

Which of the following is an example of passive transport?

• Diffusion of oxygen

• Endocytosis

• Exocytosis

• Sodium-potassium pump

What is required for active transport to occur?

• A concentration gradient

• Carrier proteins

• ATP energy

• Osmosis

In the context of active transport, what does ATP stand for?

• Adenosine tetraphosphate

• Adenosine monophosphate

• Adenosine triphosphate

• Adenosine diphosphate

What is facilitated diffusion?

• Movement of water through a membrane

• Movement of molecules from low to high concentration

• Diffusion assisted by carrier proteins

• Active transport of ions

Which molecule requires a carrier protein for facilitated diffusion?

• Water

• Glucose

• Carbon dioxide

• Oxygen

What is osmosis?

• Movement of solutes from high to low concentration

• Facilitated diffusion of glucose

• Movement of water from high to low concentration

• Active transport of ions

In the U-tube example, why does water move to the right side?

• Because the water concentration is higher on the left

• Because the water concentration is higher on the right

• Because the solute concentration is higher on the right

• Because the solute concentration is higher on the left

Tags

NGSS.MS-ESS2-4

What is the main difference between diffusion and osmosis?

• Diffusion involves water, osmosis involves solutes

• Diffusion involves solutes, osmosis involves water

• Both involve active transport

• Both require energy

Which of the following is NOT an example of passive transport?

• Simple diffusion

• Facilitated diffusion

• Osmosis

• Sodium-potassium pump