Certified Arborist Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Phloem is the vascular tissue responsible for the transport of carbohydrates and other organic compounds throughout the plant. It functions primarily in distributing the sugars produced during photosynthesis from the leaves (where they are synthesized) to other parts of the plant, including roots, stems, and fruits, where they can be utilized for growth, energy storage, or other metabolic processes.

The other options provided do not accurately describe tissues that conduct carbohydrates. Photosynthesis is a process that takes place in the chloroplasts of plant cells, primarily in the leaves, where light energy is converted into chemical energy, resulting in the production of carbohydrates. Transpiration refers to the process of water vapor leaving the plant through small openings in leaves called stomata, which is related to water movement, not carbohydrate transport. Stomata are the structures that facilitate gas exchange but do not have a role in carbohydrate conduction. Thus, phloem is specifically designated for the movement of carbohydrates, making it the correct answer.