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Multiple Choice
Which of the following best describes evapotranspiration in the context of plant biology?
A
The combined process of water evaporation from soil and transpiration from plant leaves
B
The breakdown of glucose to release energy in plant cells
C
The uptake of carbon dioxide by plant roots
D
The conversion of light energy into chemical energy during photosynthesis
Verified step by step guidance
1
Understand the term 'evapotranspiration' by breaking it into its components: 'evaporation' refers to the process where water changes from liquid to vapor, and 'transpiration' refers to the release of water vapor from plant leaves through stomata.
Recognize that evapotranspiration is a combined process involving both the evaporation of water from the soil and the transpiration of water from plants.
Eliminate the incorrect options by analyzing their definitions: (1) 'The breakdown of glucose to release energy in plant cells' refers to cellular respiration, not evapotranspiration. (2) 'The uptake of carbon dioxide by plant roots' is not a process plants perform; carbon dioxide is absorbed by leaves during photosynthesis. (3) 'The conversion of light energy into chemical energy during photosynthesis' describes photosynthesis, not evapotranspiration.
Focus on the correct option: 'The combined process of water evaporation from soil and transpiration from plant leaves' aligns with the definition of evapotranspiration.
Conclude that evapotranspiration is a key concept in plant biology, as it plays a significant role in the water cycle and helps regulate water movement in ecosystems.