Nucleic acids are formed of units called:
Correct answer: B. Nucleotides
- A. Amino acids
- B. Nucleotides
- C. Citric acids
- D. Isoprenoid units
Explanation
b) Nucleotides:This is the correct answer. Nucleic acids, such as DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), are made up of repeating units called nucleotides. A nucleotide consists of three components: a nitrogenous base (adenine, thymine, cytosine, guanine, or uracil), a sugar molecule (ribose in RNA or deoxyribose in DNA), and a phosphate group. These nucleotides are linked together to form a long chain, which is the structure of nucleic acids.
This question appeared on the HEC Phase II 2017 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
The number of water-soluble vitamins is:
When an electron pair is shared between two atoms:
All of the following structures are proteinous in nature except:
Due to the insolubility of large organic molecules, what function do they mainly perform?
Definition of hydrolysis:
Which one of the following is an organic compound?