Year 10 - Science
Producers, photosynthesis and consumers
Photosynthesis: requirements and products
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores photosynthesis as the basis for food and biomass, examines cell structure and adaptations in eukaryotic and prokaryotic cells, and covers the photosynthesis process. It focuses on using models and theories to develop hypotheses, interpret data, and present reasoned explanations.
Lesson Summary
You will learn to explain why the survival of consumers depends upon photosynthesis in producers.
Key Notes
- Producers use photosynthesis to make their own food in the form of glucose (a simple carbohydrate).
- Consumers can only get food by eating producers or other consumers; producers are the source of food for food chains.
- Consumers cannot use carbon and nitrogen from the environment to make biomass; they get them by eating producers.
- Producers and consumers use the carbohydrate from photosynthesis to make biomass for growth and as fuel for respiration.
- Consumers also depend upon producers to add oxygen to the atmosphere, which they use for aerobic cellular respiration.
Vocabulary To Learn
- producer: an organism that makes its own food
- photosynthesis: the process used by producers to make their own food via a series of chemical reactions
- biomass: the mass of biological material in one or more organisms
- cellular respiration: a chemical process that transfers energy for life processes, using glucose as a fuel
- consumer: an organism that eats other organisms for food
Common Mistakes To Avoid
- It is a common misconception that consumers (including humans) could survive without producers.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Producers use photosynthesis to make their own food in the form of glucose (a simple carbohydrate). Consumers can only get food by eating producers or other consumers; producers are the source of food for food chains.
2. Define this scientific word and use it in context. 'producer'
an organism that makes its own food. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: It is a common misconception that consumers (including humans) could survive without producers. Correction: The dependence of consumers on photosynthesis in producers in explored in depth.
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