Lesson 5: Cellular Respiration: ATP Production & Mitochondrial Power
Compare aerobic and anaerobic respiration and explain how ATP supply affects cellular work.
60-minute plan: retrieval 5 · media 10 · comparison task 25 · portfolio 15 · exit check 5
🎯 Ngā Whāinga Akoranga | Learning Intentions
The biochemistry of cellular respiration: Glycolysis (cytoplasm), Krebs Cycle (mitochondrial matrix), and Electron Transport Chain (cristae membrane).
Compare aerobic and anaerobic pathways by location, oxygen requirement, products and relative ATP yield, then connect ATP supply to cell function.
🎥 Media Anchor & Pedagogical Scaffold
Cellular Respiration (UPDATED)
Video: Amoeba Sisters (full runtime: 8m 47s).
🧠 1. Before Viewing (Activate & Predict)
How do mitochondria extract stored chemical energy from glucose to power cellular work?
👁️ 2. During Viewing (Watch With a Job)
- Watch for: Locate glycolysis in the cytoplasm.
- Watch for: Track how oxygen availability changes the pathway and products.
- Watch for: Compare aerobic and anaerobic ATP production qualitatively.
🗣️ 3. After Viewing & Kaiako Move (Process & Apply)
Kaiako move: Separate “how much ATP per glucose” from “how rapidly ATP can be supplied in a particular context”.
Immediate task: Open Learner Evidence Pack · Sheet 5.
⚡ Whakaoho | Do Now: Cell Recall Challenge (5 mins)
Why breathing can stay elevated after you stop running. Aerobic respiration and rapid glycolysis overlap during a sprint, and recovery still requires ATP after movement stops.
Two minutes: suggest two recovery processes that could keep oxygen demand elevated, such as restoring oxygen stores or phosphocreatine. Explain why lactate should not be treated as one toxic waste product that simply waits for an “oxygen debt” to be repaid.
📖 Activity 1: Core Process Investigation & Diagram Analysis (25 mins)
Map and compare (15 min). Complete the supplied pathway table: cytoplasm/mitochondrion, oxygen requirement, products and relative ATP yield.
Apply (10 min). Use one named cell context to explain why limited oxygen changes ATP supply and therefore changes a cell process such as active transport or contraction.
Supplied inputs
- Learner Evidence Pack · Sheet 5 — qualitative pathway comparison and cell-context prompt
- Kaiako Guide · Lesson 5 — indicative answer and moderation note
📝 Activity 2: Portfolio evidence (15 mins)
Complete Portfolio Section 5. For the 5-minute exit check, explain why this unit uses “substantially more ATP” rather than one fixed aerobic ATP total.
🏫 Kaiako Planning & Pedagogy Notes
Level 2 Biology focus: both aerobic and anaerobic respiration are specified. ATP totals vary with accounting and cell conditions, so moderate the sound qualitative comparison. See Kaiako Guide · Lesson 5.
Paired concept in Mechanism & Exam Synthesis: cellular respiration →