Osmosis

What is the primary driving force behind osmosis?

• Temperature difference

• Concentration gradient of water

• Movement of solutes

• Pressure difference

What does osmotic pressure prevent?

• Movement of solutes

• Equalization of solute concentrations

• Inward flow of water

• Outward flow of water

Which protein is primarily responsible for oncotic pressure in the blood?

• Keratin

• Albumin

• Hemoglobin

• Collagen

What is the effect of an isotonic solution on a cell?

• Cell bursts

• Cell shrinks

• No net movement of water

• Cell swells

In a hypotonic solution, what happens to a cell?

• It becomes isotonic

• It remains unchanged

• It swells

• It shrinks

What occurs to a cell in a hypertonic solution?

• It shrinks

• It remains unchanged

• It bursts

• It swells

Which of the following best describes tonicity?

• Movement of water across a membrane

• Relative solute concentrations across a membrane

• Equalization of solute concentrations

• Pressure exerted by solutes