Multiple Choice
Which of the following molecules is most abundant in the cells of the human body?
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2. Cell Chemistry & Cell Components
Atoms- Smallest Unit of Matter
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Which molecule is the most abundant in the human body?
A
Carbon dioxide (CO2)
B
Water (H2O)
C
Oxygen (O2)
D
Glucose (C6H12O6)
Verified step by step guidance1
Identify the molecules listed in the problem: Carbon dioxide (CO2), Water (H2O), Oxygen (O2), and Glucose (C6H12O6).
Understand the composition of the human body, which is primarily made up of water, accounting for about 60% of the body's weight.
Recognize that water (H2O) is a crucial component of cells, tissues, and organs, and is involved in numerous physiological processes.
Consider the roles of the other molecules: Carbon dioxide (CO2) is a waste product of respiration, Oxygen (O2) is essential for cellular respiration, and Glucose (C6H12O6) is a primary energy source.
Conclude that due to its abundance and essential role in maintaining life, water (H2O) is the most abundant molecule in the human body.
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