Year 9 - Science
Anaerobic cellular respiration and fermentation in microorganisms
Breathing and respiration
Study Hub
Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores the human gas exchange system, breathing mechanisms, and adaptations for function. It covers aerobic and anaerobic respiration, including fermentation, and compares their processes and implications. Focus is on accuracy, reliable measurements, and SI units.
Lesson Summary
You will learn to describe the reactants and products of anaerobic cellular respiration in microorganisms, and ways in which the process is useful to us.
Key Notes
- In microorganisms, anaerobic cellular respiration produces carbon dioxide and a type of alcohol called ethanol.
- A word summary of the reactants and products of anaerobic cellular respiration in microorganisms.
- Anaerobic cellular respiration in microorganisms is also called fermentation.
- Humans use fermentation in microorganisms to make useful products such as bread, yogurt and alcoholic drinks.
Vocabulary To Learn
- microorganism: A microorganism is a living organism made up of one or a small number of cells.
- anaerobic cellular respiration: Anaerobic cellular respiration is a form of cellular respiration which occurs without oxygen.
- ethanol: Ethanol is a product of anaerobic cellular respiration in microorganisms.
- alcohol: Alcohols are a group of compounds containing carbon, hydrogen and oxygen.
- fermentation: The process of anaerobic respiration in microorganisms is called fermentation.
Common Mistakes To Avoid
- Students can often confuse the word summaries for the different types of cellular respiration.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
In microorganisms, anaerobic cellular respiration produces carbon dioxide and a type of alcohol called ethanol. A word summary of the reactants and products of anaerobic cellular respiration in microorganisms.
2. Define this scientific word and use it in context. 'microorganism'
A microorganism is a living organism made up of one or a small number of cells. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Students can often confuse the word summaries for the different types of cellular respiration. Correction: This lesson directly compares the different word summaries for anaerobic cellular respiration to help understand the differences between them.
More Lessons In This Unit
- Adaptations of the human lungs for gas exchange Study Guide
- Aerobic cellular respiration Study Guide
- Anaerobic cellular respiration in humans Study Guide
- Breathing, respiration and gas exchange Study Guide
- Cellular respiration Study Guide
- Estimating lung volume Study Guide
- The human gas exchange system and breathing Study Guide
Browse all guides in the Year 9 Science guide library.