Question

Strongest type chemical bond among biomolecules is:

• A. Hydrogen bond
• B. Ionic bond
• C. Covalent bond
• D. Vander waals interaction

Hint:

Covalent bonds are the strongest bonds in biomolecules because they involve sharing of electrons between atoms.

Answer 1

The Correct Option is C

Concept:
Biomolecules are held together by different types of chemical interactions. These include covalent bonds, ionic bonds, hydrogen bonds, and van der Waals interactions.

Step 1: Understand covalent bond.
A covalent bond is formed by sharing of electrons between atoms. It is a strong chemical bond and forms the backbone of biomolecules such as proteins, nucleic acids, carbohydrates, and lipids.

Step 2: Understand hydrogen bond.
Hydrogen bonds are weaker than covalent bonds. They are important in DNA base pairing and protein secondary structure.

Step 3: Understand ionic bond.
Ionic bonds are electrostatic attractions between oppositely charged ions. They are strong in dry conditions but weaker in aqueous biological systems.

Step 4: Understand van der Waals interaction.
Van der Waals interactions are weak attractions between molecules. They are important collectively but individually weak.

Step 5: Compare the strength.
The general order of bond strength is: \[ \text{Covalent bond} > \text{Ionic bond} > \text{Hydrogen bond} > \text{Van der Waals interaction} \] Therefore, the strongest bond among the given options is covalent bond. \[ \therefore \text{Correct Answer is (C)} \]