Food Production
Overview
Feeding a growing global population means producing more food from the same amount of land. Biologists and farmers work together to push crop yields higher using controlled environments like glasshouses, while microorganisms such as yeast turn simple ingredients into bread, beer, and other staples.
In this lesson you will explore how glasshouses and polythene tunnels boost crop growth by controlling temperature and carbon dioxide, and discover how yeast's anaerobic respiration is harnessed to make bread. You will also learn how to investigate yeast activity under different conditions.
Objectives
- Describe how glasshouses and polythene tunnels can be used to increase the yield of certain crops
- Understand the effects on crop yield of increased carbon dioxide and increased temperature in glasshouses
- Understand the role of yeast in the production of food including bread
- Investigate the role of anaerobic respiration by yeast in different conditions
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Food Production. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which gas is added to glasshouses to increase crop yield? A) Oxygen B) Nitrogen C) Carbon dioxide D) Methane Answer: C
- In bread making, the dough rises because yeast produces: A) Oxygen B) Ethanol C) Lactic acid D) Carbon dioxide Answer: D
- What happens to yeast enzymes above their optimum temperature? A) They work faster B) They denature C) They are not affected D) They produce more ethanol Answer: B
- Anaerobic respiration in yeast produces: A) Glucose and oxygen B) Ethanol and carbon dioxide C) Lactic acid and water D) Ethanol and oxygen Answer: B
- Increasing temperature in a glasshouse beyond the optimum causes crop yield to: A) Continue increasing B) Stay the same C) Decrease D) Double Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Practice Mock Questions
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