NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following elements are NOT considered a main component of living things?
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Hydrogen
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Helium
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Carbon
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Sulfur
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Explanation:
Detailed explanation-1: -Zinc is not an element common to all living organisms.
Detailed explanation-2: -A lot of chemical elements are necessary for the healthy life of any living organism. The elements that are present in the highest quantities in living organisms are oxygen, carbon, hydrogen, nitrogen, sulfur, and phosphorus. These elements make up about 99% of their living mass.
Detailed explanation-3: -Helium has no known biological role. It is non-toxic. After hydrogen, helium is the second most abundant element in the universe. It is present in all stars.
There is 1 question to complete.