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Questions and Answers
Which element is the most frequently found in cells, forming about 96% of the human body mass?
Which element is the most frequently found in cells, forming about 96% of the human body mass?
- Hydrogen (H)
- Nitrogen (N)
- Carbon (C)
- Oxygen (O) (correct)
How many elements are needed to build living organisms from the 92 elements occurring naturally in nature?
How many elements are needed to build living organisms from the 92 elements occurring naturally in nature?
- 10
- 50
- 92
- 25 (correct)
Which group of compounds in the cell do not contain carbon?
Which group of compounds in the cell do not contain carbon?
- Organic compounds
- Inorganic compounds (correct)
- Macromolecules
- Trace-elements
Which elements are found in small quantities in cells but are important in biological processes?
Which elements are found in small quantities in cells but are important in biological processes?
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Which elements are usually found in and originate from living organisms?
Which elements are usually found in and originate from living organisms?
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