ESAT (Engineering and Science Admissions Test) · Biology

Movement across membranes

7 practice questions, each with the answer and an explanation.

Practise Movement across membranes now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 7 questions

A potato cylinder has mass $5.0 g$ . After soaking in a sucrose solution its mass is $4.2 g$ . What is the percentage change in mass?
The rate of diffusion across an exchange surface is proportional to $\frac{A Δ c}{d}$ . Surface area $A$ is doubled and the thickness $d$ is halved, with $Δ c$ unchanged. By what factor doe…
An onion epidermis cell is placed in a concentrated sucrose solution and its cell membrane pulls away from the cell wall. What is this called?
A plant cell has solute potential $- 800 kPa$ and pressure potential $+ 500 kPa$ . It is placed in a solution of water potential $- 400 kPa$ . What happens?
A plant cell has a water potential of $- 600 kPa$ and is placed in a solution of water potential $- 300 kPa$ . What happens?
Which process moves a substance across a membrane against its concentration gradient?
Which statement about facilitated diffusion is correct?

Keep practising

More ESAT (Engineering and Science Admissions Test) topics

All ESAT (Engineering and Science Admissions Test) practice →

Ready for the full ESAT (Engineering and Science Admissions Test) test?

Take a mock test ESAT (Engineering and Science Admissions Test) hub