The second most abundant bio element in the human body is:
Correct answer: B. Carbon
- A. Oxygen
- B. Carbon
- C. Hydrogen
- D. Nitrogen
Explanation
Carbon is the second most abundant element in the human body, accounting for 18% of body weight. Oxygen is the most abundant, constituting about 61- 65% of the mass of the human body.
This question appeared on the NUMS 2020 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Classification of Biological Molecules questions
Carbon is involved in the synthesis of various complicated cellular structures because of its ability to make
The one which is present in all living things
Which one is a micromolecule__________?
A mammalian cell contains 1.1 percentage:
Hydrolysis is the breakdown of Polymer into its monomers by the addition of:
All of the following structures are proteinous in nature except: