Krebs Cycle and the ETC – Aerobic Cellular Respiration Biology Lesson

Aerobic cellular respiration from pyruvate oxidation through the Krebs cycle and electron transport chain, taught with teacher and fill-in-the-blank student slide decks plus a Citric Acid Cycle worksheet.
Pages
24
File type
Multiple File Types
Editable
Yes

Updated Sep 18, 2026

Subject
Biology, Life Sciences, Science
Topic
Senior Biology, Biology Lesson
Resource types
Lesson Plans
Editable
Yes

From the author

About this resource

Krebs Cycle and the ETC - Aerobic Cellular Respiration - Sixth Form Biology lesson

Your lesson covers everything from the Krebs cycle to the ETC. In order, the lesson teaches a review of Glycolysis and pyruvate oxidation, the Krebs/Citric Acid Cycle, the Electron Transport Chain, the role of O2, proton gradient and chemiosmosis, ATP Synthase, and uncoupling the ETC.

Your lesson includes the teacher and student version of the presentation, four embedded videos, an auto-marked exit ticket, and a student lesson handout so the students can record the notes on a more condensed medium.

This lesson is designed to be your go-to resource, whether you're in a traditional classroom or a virtual one. With both a teacher version and a student version, it seamlessly fits into your lesson plans, making learning engaging and adaptable.

Assessment made easy

We've included an auto-marked Exit Ticket and a quiz with an answer key because I know you don't have an excess of time. I know you don't, because I don't and I know I'll do whatever I can to reduce my marking time.

Whether you use PowerPoint or Google Slides, prefer Word or Google Docs, this lesson has you covered. This lesson comes in both Office and Google formats for your convenience.

The student version of the presentation has strategically placed blanks for them to fill in as you're teaching. It keeps them active and engaged, encourages discussion, and leaves more time for those "aha" moments.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Describe the steps and products of pyruvate oxidation and the Krebs cycle

  • Explain how the proton gradient drives ATP synthase in chemiosmosis

  • Explain the role of oxygen in the electron transport chain

Teaching tips

  • Students fill in the blanks on the student deck as the teacher version is presented, so both versions should be ready together.

Skills covered

  • Note-taking — completing blanks in the student slide deck during the lesson

  • Explaining biochemical pathways — answering worksheet questions on the Citric Acid Cycle

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