Cell Transport

True or False: Osmosis is an active process and requires extra energy for it to occur.

• True

• False

What is diffusion?

• High to low

• Low to high

• High to equal

• Low to equal

Why do red blood cells in group A look different from a normal, healthy red blood cell?

• They have gained water.

• They have lost water.

• They have been attacked.

• They are symptom of sickle cell anemia.

What does it mean for a membrane to be partially permeable?

• 50% of the molecules can pass through it.

• No molecules can pass through it.

• Tiny holes called pores allow molecules to move through it.

• It allows some molecules to pass through it.

True or False: Active transport moves molecules down their concentration gradients.

• True

• False

What is this process called?

• Endocytosis

• Exocytosis

What is osmosis?

• The diffusion of gas.

• The movement of solutes.

• The diffusion of water.

• The movement of any solvent.

What does the red dashed line between the two solutions represent?

• An impenetrable membrane

• A semipermeable membrane

• A permeable membrane

• A red filter

Which diagrams show active transport. (More than 1 correct answer)

• A

• B

• C

• D

Which solute has the higher concentration of water?

• Solution 1

• Solution 2