Lesson eLearning

A plant has 10 leaves. Each leaf receives 200 lux of light and captures 50% of it for photosynthesis. If one leaf produces 0.8 molecules of O₂ per second, how many molecules of O₂ does the plant produce in one minute?

medium 2 marks Class 6 · Science · Getting to Know Plants
Answer
480 molecules

The correct answer is 480 molecules — Multiply by the number of leaves: 48 × 10 = 480 molecules/min.

Step-by-step solution

  1. Convert the production rate from per second to per minute: 0.8 × 60 = 48 molecules/min per leaf.
  2. Multiply by the number of leaves: 48 × 10 = 480 molecules/min.
Common mistake: Forgetting to convert seconds to minutes or misapplying the percentage

Concept tested: Rate of photosynthetic oxygen production

Published · How this solution was prepared and checked

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