ScienceQuestion 76 of 120
Which gas do humans primarily exhale as a waste product of cellular respiration?
a.Carbon dioxide
b.Oxygen
c.Nitrogen
d.Hydrogen
Explanation
Cellular respiration produces carbon dioxide as a waste product, which humans exhale. Oxygen is inhaled and used to help release energy from glucose.
Practice all 120 questions free — no signup required.
Related questions on this topic
- Which system includes the bones and provides support and protection for the body?
- What is the main function of red blood cells?
- In a controlled experiment, the variable that is deliberately changed by the researcher is called the:
- Which of the following best describes the role of enzymes in the body?
- The kidneys are the primary organs of which body system?
- An atom that has gained or lost electrons and therefore carries a charge is called a(n):
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against ATI TEAS 7 (Test of Essential Academic Skills — nursing school entrance) · How we review