LAUNCH · Edexcel GCSE Biology 1BI0 Foundation · Paper 1 · Topic 1 · Week 6
| Key word | What it means |
|---|---|
| active transport | Movement of substances against the concentration gradient, using energy. |
| against the gradient | From lower concentration to higher concentration. |
| carrier protein | A protein in the membrane that moves the substance across. |
| respiration | The reaction that releases the energy active transport needs. |
| mitochondria | Where respiration happens; cells doing lots of active transport have many. |
Session plan: 40-minute session: Arrival 3; overview 1; I Do 1 4; We Do 1 4; I Do 2 3; We Do 2 4; independent work 15; feedback and next step 3; exit 3. Title orientation is untimed. The optional two-minute evidence check sits inside independent time. Keep extra practice available; use the core question, a contrasting example and a recheck before extending.
Name: ____________________ Tier ringed by adult: ◆ Supported ▲ Standard ★ Stretch Date:
I can explain active transport and distinguish it from diffusion and osmosis.
Complete from the word bank: active transport moves substances ____ the concentration gradient and needs ____.
Write one difference between diffusion and active transport.
Write two differences between diffusion and active transport.
Active transport needs energy → ______________________________
Diffusion needs energy → ______________________________
Active transport moves substances up the gradient → ______________________________
Active transport is just faster diffusion → ______________________________
Cells doing active transport have many mitochondria → ______________________________
Osmosis moves any particle → ______________________________
Root hair cells absorb mineral ions by active transport because the concentration of ions is already higher inside the cell than in the soil. Moving them against the concentration gradient requires energy released by respiration, which is why root hair cells contain many mitochondria.
You give the answer shape for the classic question: 'Mineral ions move into the root hair cell by active transport because their concentration is HIGHER inside the cell than in the soil water. Moving against the gradient requires energy, released by respiration in the mitochondria.' Direction, then why energy is needed, then source.
active transport, against the gradient, carrier protein, respiration, mitochondria
You give the answer shape for the classic question: 'Mineral ions move into the root hair cell by active transport because their concentration is HIGHER inside the cell than in the soil water. Moving against the gradient requires energy, released by respiration in the mitochondria.' Direction, then why energy is needed, then source.
active transport, against the gradient, carrier protein, respiration, mitochondria
You give the answer shape for the classic question: 'Mineral ions move into the root hair cell by active transport because their concentration is HIGHER inside the cell than in the soil water. Moving against the gradient requires energy, released by respiration in the mitochondria.' Direction, then why energy is needed, then source.
active transport, against the gradient, carrier protein, respiration, mitochondria
Task: Complete the three-column comparison table from the word bank, then label the root hair cell.
Task: Complete the comparison table unaided, label the root hair cell, and answer two application questions.
Task: Complete the table, answer the application questions, and explain what would happen to mineral uptake if a plant's roots were waterlogged and short of oxygen.
Why does active transport need energy?
Pearson Edexcel GCSE (9–1) Biology 1BI0 (Foundation, grades 1–5); GCSE Combined Science 1SC0 F where appropriate; AQA UAS science units
Records what was observed, and at which level of independence.
| Pupil | ____________________ |
| Lesson | Discover: Active Transport — LAUNCH Science · Week 6 |
| Date | ____________________ |
Observed in this lesson
☐ Stated that active transport works against the concentration gradient.
☐ Linked the energy requirement to respiration.
☐ Compared diffusion, osmosis and active transport correctly.
Assessor comment
Ring the tier the pupil actually worked at
| ◆ Supported | ▲ Standard | ★ Stretch |
Assessor name ______________ Role ____________ Signature ______________ Date ________
Space: Three processes at once is a genuine memory load. The comparison table stays visible all lesson — that is deliberate.
Voice: If you can defend a different answer on the sorting task, defend it. Some of these are genuinely close.
Audience: Your comparison table goes into the Topic 1 folder and is the core revision tool at W7.
Influence: The class decides which of the three processes gets extra practice next lesson.
Closing the loop: this one ends on paper — your own hand, or your words scribed by an adult. Saying it aloud starts the loop; writing it is what closes it. Pass is always allowed.
What I said, and what it changed:
Keep with your portfolio.
| Pupil name: | Date: |
| WWW (What Went Well): | |
| EBI (Even Better If): | |
| Level worked at: Supported / Standard / Stretch | Evidence filed: Yes / Not yet |
| Pupil response — my next step: | |