1. Cell Biology

Membrane Transport — Quiz

Test your understanding of membrane transport with 5 practice questions.

Practice Questions

Question 1

A cell is engineered to have a significantly increased number of aquaporins in its plasma membrane. If this cell is then placed in a hypotonic solution, what would be the most immediate and significant consequence compared to a normal cell in the same solution?

Question 2

Consider a scenario where a specific type of glucose transporter protein in a cell membrane is saturated. If the external glucose concentration is further increased, what would be the effect on the rate of glucose uptake by facilitated diffusion?

Question 3

A cell needs to transport a large, charged molecule against its concentration gradient. Which of the following transport mechanisms would be the most energy-efficient and appropriate for this task, assuming the cell has a pre-existing ion gradient?

Question 4

A plant cell is exposed to a chemical that specifically inhibits the function of proton pumps in its plasma membrane. What immediate effect would this have on the plant cell's ability to absorb essential mineral ions from the soil, which are typically at a lower concentration outside the cell?

Question 5

Which of the following scenarios would lead to the most rapid rate of osmosis into an animal cell?