Which of the following is the primary purpose of cellular respiration?

• A. To produce ATP for cellular energy
• B. To store genetic information
• C. To synthesize glucose from carbon dioxide and water
• D. To break down proteins into amino acids

Answer: (A)

Verified step by step guidance

1. Understand the concept of cellular respiration: Cellular respiration is a metabolic process that occurs in cells to convert biochemical energy from nutrients into adenosine triphosphate (ATP), which is the primary energy currency of the cell.
2. Eliminate incorrect options: Review each answer choice and determine whether it aligns with the purpose of cellular respiration. For example, storing genetic information is related to DNA, not cellular respiration.
3. Clarify the synthesis of glucose: The synthesis of glucose from carbon dioxide and water is part of photosynthesis, not cellular respiration. Cellular respiration is the opposite process, breaking down glucose to release energy.
4. Consider the breakdown of proteins: Cellular respiration primarily focuses on breaking down glucose and other carbohydrates for energy, not proteins into amino acids. Protein breakdown is part of digestion and other metabolic pathways.
5. Identify the correct purpose: The primary purpose of cellular respiration is to produce ATP, which provides energy for various cellular processes such as movement, transport, and synthesis.