Standard Science Primary 6 Energy

Which of the following is the correct word equation for photosynthesis?

A Sugar + Oxygen → Carbon Dioxide + Water
B Carbon Dioxide + Water → Sugar + Oxygen
C Sugar + Water → Carbon Dioxide + Oxygen
D Oxygen + Water → Sugar + Carbon Dioxide
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Worked Solution

Step 1: Recall that plants need carbon dioxide and water as raw materials. Step [2-9]: Photosynthesis requires light energy and chlorophyll to produce glucose (sugar). Step [2-9]: Oxygen is released as a by-product.

Correct answer: Carbon Dioxide + Water → Sugar + Oxygen

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