Year 10 - Science
Models of photosynthesis
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 use simple models to explain what happens during photosynthesis, including a model of the two main stages.
Key Notes
- Models are used in science to explain things that can be difficult to see or understand.
- The word summary and symbol equation for photosynthesis are simple models of the process.
- Photosynthesis can also be summarised using a model of the two main stages.
- In the first stage, energy from light is required to split water molecules into hydrogen and waste oxygen.
- In the second stage, the hydrogen is combined with carbon dioxide to make glucose.
Vocabulary To Learn
- model: a simpler representation of a complex thing or idea
- photosynthesis: the process used by producers to make their own food via a series of chemical reactions
- chloroplast: subcellular structure in which photosynthesis takes place
- prediction: a scientific prediction is a testable statement about a possible outcome, which could be tested in an experiment
- chlorophyll: green pigment in chloroplasts, to which energy is transferred by light
Common Mistakes To Avoid
- A common misconception is that photosynthesis is just one simple reaction, as depicted by the word equation and balanced symbol equation.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Models are used in science to explain things that can be difficult to see or understand. The word summary and symbol equation for photosynthesis are simple models of the process.
2. Define this scientific word and use it in context. 'model'
a simpler representation of a complex thing or idea. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: A common misconception is that photosynthesis is just one simple reaction, as depicted by the word equation and balanced symbol equation. Correction: This explores the idea that the word equation and balanced symbol equation are useful but very simple models of photosynthesis, and also explores a slightly more detailed two-stage model of the process.
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