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← Cells & Organisms

Combined Science · Hard lesson

Transport & Enzymes (GCSE)

GCSE-style stretch. Expect multi-step reasoning and exam vocabulary.

5

Questions

~4

Minutes

3

Hints/Q

Confidence tracking, 3-tier hints and instant feedback.

What you'll learn

  • 1Osmosis: water moves from dilute to concentrated across a partially permeable membrane.
  • 2Active transport moves against the gradient - needs energy.
  • 3Enzymes are biological catalysts; each has an optimum pH and temperature.
  • 4Denaturation changes the active site so substrate no longer fits.

Question mix

  • True / False×1
  • Fill the gap×2
  • Multiple choice×2

How it works

Score ≥ 80% to unlock the next level
  • 1

    Rate your confidence

    Tell us how sure you feel before answering. It powers your weak-topic map.

  • 2

    Use hints if stuck

    Reveal up to 3 progressive hints per question. Using fewer earns more points.

  • 3

    See what went wrong

    Instant feedback solves the exact question you just answered, so nothing stays fuzzy.

Ready when you are. This takes about 4 minutes.