Chemistry
NULL
Medium
Question
According to Journal of Biological Chemistry 158, human brain and heart are composed of ________water?
A
0.75
B
0.81
C
0.73
✓ Official correct answer
D
0.89
Community credibility
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A
0.75
No member explanations yet for this option.
B
0.81
No member explanations yet for this option.
C
0.73
No member explanations yet for this option.
D
0.89
No member explanations yet for this option.
Explanation
According to classic body-composition data (Mitchell et al., J. Biol. Chem. 158, 1945), both the human brain and heart are approximately 73% water by weight.
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