Prepare for NEET Biology Biomolecules with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert explanations of carbohydrates, proteins, and more.
Which of the following is NOT a characteristic of globular proteins?
Generally soluble in water
Spherical or globe-like shape
Perform dynamic functions like catalysis
Generally insoluble in water
The peptide bond formation between two amino acids involves the reaction between:
Two carboxyl groups
Two amino groups
Carboxyl group of one and amino group of the other
Side chains of both amino acids
Which level of protein structure is characterized by the sequence of amino acids?
Primary
Secondary
Tertiary
Quaternary
Which protein plays a crucial role in blood clotting?
Collagen
Keratin
Fibrinogen
Myosin
What type of bonds primarily stabilize the secondary structure of a protein?
Peptide bonds
Disulfide bonds
Hydrogen bonds
Hydrophobic interactions
Denaturation of a protein involves disruption of which structural levels?
Only primary
Only secondary
Secondary, tertiary, and quaternary
Only quaternary
Which two functional groups are primarily found in sugar molecules?
carboxyl and amino
hydroxyl and carbonyl
phosphate and sulfhydryl
methyl and ethyl
Glucose, a simple sugar, contains which characteristic functional groups?
ketone and carboxyl
aldehyde and hydroxyl
phosphate and amino
sulfhydryl and methyl
Which of the following pairs of functional groups is responsible for the characteristic properties of sugars like sweetness and reactivity?
Carboxyl and amino
Carbonyl and hydroxyl
Phosphate and sulfhydryl
Methyl and ethyl
A molecule is found to contain multiple hydroxyl groups and a ketone functional group. To which class of biomolecules does it most likely belong?
Lipids
Proteins
Nucleic Acids
Carbohydrates
