ISA Certified Arborist Practice Exam

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Question: 1 / 400

Which term describes the process of converting food into energy in trees?

Photosynthesis

Transpiration

Respiration

Respiration is the process of converting food into energy in trees. This is done through the breaking down of glucose molecules to release energy for growth and metabolism. This process occurs in the cells of a tree's trunk, branches, leaves, and roots. Photosynthesis (option A) is the process by which trees convert sunlight into energy in order to produce glucose, which is then used in respiration. Transpiration (option B) is the process by which trees release water from their leaves, which helps to cool them and transport nutrients. Deciduous (option D) refers to a type of tree that loses its leaves each year, but has no connection to the conversion of food into energy.

ISA Certified Arborist Practice Exam

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