logo

Learning objective

Active transport is crucial for the movement of molecules or ions across cell membranes, such as how root hairs absorb ions.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyMovement into and out of cellsSupplement content

Study support

Understand this objective

Quick explanation

Active transport is crucial for the movement of molecules or ions across cell membranes, such as how root hairs absorb ions

  • This point belongs to Active transport, especially Active transport outcomes.
  • You need to be able to active transport is crucial for the movement of molecules or ions across cell membranes, such as how root hairs absorb ions.
  • The key ideas to know are Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Explain

Why it matters

This objective helps connect Active transport outcomes to exam-style questions, flashcards, and revision notes for Active transport.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 4 structured question: Active transport

Paper 4Theory (Extended)3 marks

Description

Ion Absorption by Root Hair Cells

Root hair cells take in mineral ions from the soil even when the concentration of ions is higher inside the cell than outside.

  1. a

    Explain how root hair cells absorb mineral ions from the soil when the concentration is higher inside the cell than outside.

    Aim for approximately 3 distinct marking points.

    [3]
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route