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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?
- Nitrogen (N)
- Carbon (C)
- Hydrogen (H)
- Oxygen (O) (correct)
How many elements are needed to build living organisms?
How many elements are needed to build living organisms?
- 92
- 96
- 4
- 25 (correct)
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?
- Main elements (CHON)
- Organic compounds
- Inorganic compounds
- Trace-elements (correct)
Which type of compounds do not contain carbon?
Which type of compounds do not contain carbon?
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Which type of compounds usually consist of macromolecules and are found in and originate from living organisms?
Which type of compounds usually consist of macromolecules and are found in and originate from living organisms?
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