Skip to content

Course home

Question bank·2.1 Supplying the cell
Sign up

2.1 Supplying the cell

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394
Question 4

Cells grown in a laboratory take in substance X from the solution around them.

The concentration of substance X is lower in the solution than inside the cells. When oxygen is removed from the cells, the uptake of substance X slows and then stops.

Which statement explains this result?

[1]
A

Diffusion stops because removing oxygen reverses the concentration gradient of substance X

B

The particles of substance X stop moving randomly because oxygen provides their kinetic energy

C

Active transport stops because respiration no longer provides energy to move substance X into the cells

D

Osmosis stops because water needs oxygen to move through the cell membrane

Markscheme

2.1 Supplying the cell Questions

  1. GCSE
  2. /Biology
  3. /2.1 Supplying the cell

194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.

More questions