Which of the following is produced as a result of cellular respiration?

Cellular respiration is a fundamental biological process that takes place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and it releases waste products. During this process, glucose and oxygen are used to produce energy, and one of the byproducts of this metabolic pathway is carbon dioxide.

In aerobic cellular respiration, glucose is broken down through a series of metabolic pathways, including glycolysis and the citric acid cycle (Krebs cycle), ultimately resulting in the production of carbon dioxide. This carbon dioxide is then expelled from the cell and typically exits the organism, contributing to the overall carbon cycle in nature. The generation of carbon dioxide as a byproduct is a key characteristic of cellular respiration and is indicative of energy production occurring within the cells.

While oxygen is involved as a reactant in the process, amino acids are building blocks for proteins synthesized in the body, and chlorophyll is a pigment used in photosynthesis, which is a separate process occurring primarily in plants. Thus, carbon dioxide is the correct and relevant product of cellular respiration, highlighting its role in energy production and waste management within biological systems.