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Cellular Respiration

Tenth graders follow how a cell breaks down glucose to release the energy stored in it, stage by stage, from glycolysis through the Krebs cycle to the electron transport chain.

Grade 10Cellular Respiration40 minutes1 class period5E ModelExplicit teaching4 StandardsNGSS
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Define cellular respiration.
  • ✓Name its three stages.
  • ✓Explain where ATP is made.
  • ✓Order the stages.
Essential Question

Every cell in your body is quietly burning sugar to stay alive. How does a cell release the energy locked inside glucose, step by step?

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Lesson Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Put in Order · Interactive

Order Respiration

Project this and put the stages of cellular respiration in order — tap each stage from glucose to the waste products.

🔁 Put the stages of respiration in orderTry it
Tap the stages in order, starting with glucose.
The Lesson · 5E Instructional Model (Engage · Explore · Explain · Elaborate · Evaluate)

40 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Hook — Where's the Energy?

5 min

You eat a snack and feel energized. How does a cell actually get energy out of food?

👩‍🏫 Teacher Moves

  • Show food to ATP idea.
  • Ask how cells use food.
  • Set the goal.

🎒 Student Actions

  • Think.
  • Guess.
  • Get ready.
2

Use — Order the Stages

12 min

Students order the stages of respiration.

👩‍🏫 Teacher Moves

  • Send students to Order Respiration.
  • Order the stages.
  • Note where ATP forms.

🎒 Student Actions

  • Order.
  • Say.
  • Note it.
3

Modify — Track the Molecules

13 min

Students follow glucose and oxygen.

👩‍🏫 Teacher Moves

  • List the reactants.
  • List the products.
  • Write the word equation.

🎒 Student Actions

  • List.
  • List.
  • Write.
4

Create — Map the Pathway

15 min

Students diagram respiration in a cell.

👩‍🏫 Teacher Moves

  • Draw the cell and mitochondria.
  • Place each stage.
  • Label the ATP made.

🎒 Student Actions

  • Draw.
  • Place.
  • Label.
5

Reflect — Energy Released

5 min

Students reflect on respiration vs photosynthesis.

👩‍🏫 Teacher Moves

  • Which stage makes the most ATP?
  • How does it mirror photosynthesis?
  • Complete the exit ticket.

🎒 Student Actions

  • Say it.
  • Say it.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the Next Generation Science Standards (Grade 10 / High School Science).

NGSS
HS-LS1-7

Use a model to illustrate that cellular respiration is a chemical process whereby the bonds of food and oxygen molecules are broken and new compounds are formed, releasing energy.

NGSS
HS-LS2-3

Construct and revise an explanation for the cycling of matter and flow of energy in aerobic and anaerobic conditions.

NGSS
HS-LS1-5

Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.

CCSS
RST.9-10.7

Translate quantitative or technical information expressed in words into visual form (a flowchart or model).

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Stage + location cards.
  • Sentence frame: “___ happens in the ___ .”
  • Order two stages at a time.

Support & Access

IEP / 504
  • Start with glycolysis and ATP.
  • Use a labeled mitochondrion diagram.
  • Add one stage at a time.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Compare aerobic and anaerobic paths.
  • Count ATP produced per stage.
  • Contrast respiration with photosynthesis.
Materials

What to gather

  • 📽️Projector / board
  • 🔬Mitochondrion diagrams
  • 💻Order Respiration
  • 🧪Molecule model kit
  • ✏️Pencils
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

cellular respirationthe process cells use to release energy from glucoseglucosethe sugar that cells break down for energyATPthe molecule that stores and delivers energy in cellsglycolysisthe first stage, splitting glucose in the cytoplasmKrebs cyclethe stage in the mitochondria that breaks down the pieces furtherelectron transport chainthe stage that uses oxygen to make most of the ATPmitochondriathe cell structures where most respiration happensaerobica process that requires oxygen
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
What are the three stages of cellular respiration, in order?
Glycolysis, the Krebs cycle, and the electron transport chain.
QUESTION 2
Which stage produces the most ATP, and what does it need?
The electron transport chain, which needs oxygen.
QUESTION 3
How is cellular respiration related to photosynthesis?
Respiration releases energy from glucose and gives off CO2 and water; photosynthesis uses CO2 and water to store energy in glucose. They are opposites.

Create: map the pathway.

Have students draw a cell with its mitochondria, place each stage of respiration, and label where ATP is made. A printable cellular-respiration worksheet is in the Science library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 Cellular RespirationFlip
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Term
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Meaning
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Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 Cellular RespirationQuiz
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Question 1
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Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ Cellular RespirationPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: aerobic, ATP, cellular respiration, electron transport chain, glucose, glycolysis, Krebs cycle, mitochondria
  1. the first stage, splitting glucose in the cytoplasm
  2. the stage in the mitochondria that breaks down the pieces further
  3. the cell structures where most respiration happens
  4. a process that requires oxygen
  5. the molecule that stores and delivers energy in cells
  6. the stage that uses oxygen to make most of the ATP
  7. the process cells use to release energy from glucose
  8. the sugar that cells break down for energy

Part B · Show what you learned

  1. What are the three stages of cellular respiration, in order?
  2. Which stage produces the most ATP, and what does it need?
  3. How is cellular respiration related to photosynthesis?
Answer key — Part A: 1) glycolysis · 2) Krebs cycle · 3) mitochondria · 4) aerobic · 5) ATP · 6) electron transport chain · 7) cellular respiration · 8) glucose
Part B: 1) Glycolysis, the Krebs cycle, and the electron transport chain. 2) The electron transport chain, which needs oxygen. 3) Respiration releases energy from glucose and gives off CO2 and water; photosynthesis uses CO2 and water to store energy in glucose. They are opposites.