EXAM SCRIPT 2026 COMPLETE QUESTIONS
AND SOLUTIONS GRADED A+
◉ Amino Acids.
Answer: Monomer for protein
◉ Monosaccharides.
Answer: Monomer for carbohydrates
◉ Fatty acid, glycerol, cholesterol.
Answer: Monomers for Lipids
◉ Deoxyribose.
Answer: Sugar with No -OH on Carbon 2
◉ Ribose.
Answer: Sugar with -OH on Carbon 2
◉ DNA.
Answer: Most important biomolecule
,◉ Cn(H20)n.
Answer: Formula for Carbohydrates
◉ Glucose.
Answer: Aldose, -OH left on Carbon 3
◉ Aldose.
Answer: Double bond O on Carbon 1
◉ Ketose.
Answer: Double bond O on any Carbon except Carbon 1
◉ Galactose.
Answer: Aldose, -OH left on Carbon 3 and 4
◉ Fructose.
Answer: Ketose on Carbon 2, -OH left on Carbon 3
◉ 20.
Answer: How many amino acids?
,◉ R group.
Answer: What differentiates amino acids?
◉ Carboxyl group (carboxylic acid).
Answer: -COOH
◉ Carbonyl.
Answer: C=O
◉ Hydroxyl (alcohol) group.
Answer: -OH
◉ Amine group.
Answer: -NH2
◉ Glycerol does not have a carbonyl group.
Answer: What makes glycerol different from a carbohydrate?
◉ Glycerol.
Answer: No carbonyl, 3 carbons, 3 -OH groups
◉ Fatty Acid.
, Answer: Carboxyl group, long hydrocarbon tail
◉ Saturated.
Answer: Fatty acid with as many Hydrogens as possible
◉ Unsaturated.
Answer: Fatty acid containing at least one double bond
◉ Hydrogens.
Answer: What are the energy force in biomolecules?
◉ Lipids.
Answer: Which biomolecule has the most energy?
◉ Cholesterol.
Answer: 4 ring structure, -OH group at Carbon 3
◉ 4 ring structure cannot be broken down.
Answer: Why can cholesterol become a problem in the body?
◉ The base.
Answer: What differentiates nucleic acids?