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Which of the plants is likely to have broad leaves and thin cuticle?

Biology
JAMB 1987

Which of the plants is likely to have broad leaves and thin cuticle?

  • A. R
  • B. S
  • C. T
  • D. U
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Correct Answer: Option A
Explanation

The rate of nutrient concentration in plants, when plotted against time of day, typically follows a curve with a peak during the day, as photosynthesis and nutrient uptake are highest during daylight hours, and then declines at night.

During the day, plants use sunlight to produce sugars through photosynthesis, which are then used as energy and building blocks for growth. The energy produced during photosynthesis fuels the uptake of nutrients from the soil. As a result of these processes, nutrient concentrations in plant tissues tend to be higher during the day when photosynthesis and nutrient uptake are most active. 

Plant R has the highest peak during the day showing that the nutrient concentration in plant tissues are higher thereby, making the leaves broader and the cuticle thinner.


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