Question

use your understanding of body systems to answer the questions.
cellular respiration which of the following statements are true about cellular respiration and body systems? select three.
a. cellular respiration breaks apart carbon dioxide for its energy.
b. cellular respiration requires oxygen and produces carbon dioxide.
c. the respiratory and circulatory systems provide oxygen for cellular respiration.
d. the digestive system provides glucose for cellular respiration.
e. the respiratory and digestive systems remove the oxygen produced by cellular respiration.
f. the digestive system breaks down glucose for cellular respiration.

Explanation:

• Option A: Cellular respiration is the process that breaks down glucose (not carbon dioxide) to release energy. So, this option is incorrect.
• Option B: Cellular respiration uses oxygen (from the respiratory system) and glucose (from the digestive system) as reactants and produces carbon dioxide and water. It does not require oxygen to produce carbon dioxide in the way described here. The logic of this option is wrong.
• Option C: The respiratory system takes in oxygen and the circulatory system transports this oxygen to cells for cellular respiration. This is a correct relationship.
• Option D: The digestive system breaks down food into nutrients like glucose, which is used in cellular respiration. But it does not “provide glucose for cellular respiration” in the way the option implies. The wording is off - cellular respiration uses glucose, not that the digestive system “provides” it in a one - step, direct sense as if it's just handing it over.
• Option E: The respiratory system takes in oxygen and releases carbon dioxide (a product of cellular respiration), and the excretory system (not the digestive system) is more involved in removing the carbon dioxide - related waste. The combination of systems in this option is incorrect.
• Option F: The digestive system breaks down food into smaller molecules, including glucose, which can then be used in cellular respiration. This is a correct statement.

Answer:

C. The respiratory and circulatory systems provide oxygen for cellular respiration.
F. The digestive system breaks down glucose for cellular respiration.