Which statement describes the net movement of particles by diffusion?
from a lower concentration to a higher concentration, using energy from respiration
from a higher concentration to a lower concentration, using energy from respiration
from a higher concentration to a lower concentration, without energy from respiration
from a lower concentration to a higher concentration, without energy from respiration
41 exam-style questions on Edexcel GCSE Biology 1.4 Transport across cell membranes, covering 1.4.1 Transport into and out of cells and 1.4.2 Percentage gain and loss in osmosis. Each one has a worked solution and a mark scheme showing where the marks go.