ISA Certified Arborist Practice Exam

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Study for the ISA Certified Arborist Exam. Prepare with flashcards, multiple choice questions, and comprehensive hints and explanations. Get ready to ace your exam!

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

Photosynthesis
Transpiration
Respiration
Deciduous

The correct answer is: 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.