Active Transport
Active transport moves substances from a more dilute solution to a more concentrated solution, requiring energy from respiration.
Do you know why active transport requires energy?
What is Active Transport?
"Active transport is the process of moving substances against a concentration gradient, requiring energy from respiration."
Which statement accurately describes active transport at a GCSE level?
Active transport moves substances:
The energy needed for active transport comes from:
Why do root hair cells use active transport to take up mineral ions?
Transport Against Gradients
Active transport allows mineral ions to be absorbed from dilute soil solutions into plant root hairs.
It is also used to absorb sugar molecules from the gut into the blood when the blood concentration is already high.
Unlike diffusion and osmosis, active transport moves particles against the concentration gradient.
Want to improve faster?
The fastest way to improve your grade is to practise exam-style questions, identify your gaps, and focus only on what you don't know.
Related GCSE Biology Questions
Verified for 2024/25 Exams
Aligned to current UK Science Specifications
Little & Often Content Team
Science Education Specialists