NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the smallest unit of a macromolecule?
A
micromolecule
B
glucose
C
monomer
D
polymer
Explanation: 

Detailed explanation-1: -A monomer is a small molecule that reacts with a similar molecule to form a larger molecule. It is the smallest unit in a polymer, which is often a macromolecule with high molecular weight. Monomers are the building blocks for biological macromolecules such as DNA, RNA, proteins and carbohydrates.

Detailed explanation-2: -Most macromolecules are polymers, which are long chains of subunits called monomers. These subunits are often very similar to each other, and for all the diversity of polymers (and living things in general) there are only about 40-50 common monomers.

Detailed explanation-3: -Monomers are the building blocks of the four basic macromolecules of life-monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.

Detailed explanation-4: -Monomers are atoms or small molecules that bond together to form more complex structures such as polymers. There are four main types of monomer, including sugars, amino acids, fatty acids, and nucleotides.

Detailed explanation-5: -A macromolecule is a very large molecule important to biophysical processes, such as a protein or nucleic acid. It is composed of thousands of covalently bonded atoms. Many macromolecules are polymers of smaller molecules called monomers.

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