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Flip to reveal answersIn terms of energy, what does photosynthesis do?
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All 12 Flashcards — Photosynthesis as energy conversion
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Question
In terms of energy, what does photosynthesis do?
Answer
It **converts light energy into chemical energy** stored in glucose.
Question
Define photosynthesis.
Answer
The process that **converts light energy into chemical energy** (stored in glucose), using carbon dioxide and water as raw materials.
Question
What are the raw materials of photosynthesis?
Answer
**Carbon dioxide** and **water**.
Question
What are the products of photosynthesis?
Answer
**Glucose** and **oxygen**.
Question
Write the word equation for photosynthesis.
Answer
**carbon dioxide + water →(light, chlorophyll)→ glucose + oxygen**.
Question
What is the role of chlorophyll?
Answer
It is the **green pigment** that **absorbs the light energy** used to drive photosynthesis.
Question
Where is the chemical energy from photosynthesis stored?
Answer
In the **bonds of glucose**.
Question
Is light a raw material of photosynthesis?
Answer
**No** — light is the **energy input**. It is absorbed and converted, but not built into the glucose.
Question
Where does the oxygen released in photosynthesis come from?
Answer
From the **water** that is split during the process.
Question
Why does a water plant bubble in the light but not the dark?
Answer
Photosynthesis needs **light energy**, so it only occurs in the light, releasing **oxygen** as bubbles.
Question
Define chemical energy.
Answer
Energy **stored in the bonds of a molecule** (such as glucose); it can be released later by respiration.
Question
Which gas is released as a waste product of photosynthesis?
Answer
**Oxygen (O₂)**.
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Topic 3.3 hub
Photosynthesis
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