Q. What is the monomer of nucleic acids? (2023)
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A.
Amino acid
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B.
Nucleotide
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C.
Monosaccharide
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D.
Fatty acid
Solution
Nucleotides are the monomers that make up nucleic acids.
Correct Answer: B — Nucleotide
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Q. What is the primary function of lipids in the body? (2021)
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A.
Energy storage
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B.
Genetic information
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C.
Structural support
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D.
Transport
Solution
Lipids primarily serve as energy storage molecules.
Correct Answer: A — Energy storage
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Q. What is the role of nucleotides in cells? (2019)
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A.
Energy carriers
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B.
Building blocks of proteins
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C.
Genetic information carriers
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D.
Structural components
Solution
Nucleotides are the building blocks of nucleic acids and carry genetic information.
Correct Answer: C — Genetic information carriers
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Q. What is the structure of DNA primarily composed of? (2023)
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A.
Amino acids
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B.
Nucleotides
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C.
Fatty acids
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D.
Monosaccharides
Solution
DNA is composed of nucleotides, which include a sugar, phosphate, and nitrogenous base.
Correct Answer: B — Nucleotides
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Q. What type of bond links amino acids together? (2023)
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A.
Ionic bond
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B.
Hydrogen bond
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C.
Peptide bond
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D.
Disulfide bond
Solution
A peptide bond links amino acids in proteins.
Correct Answer: C — Peptide bond
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Q. What type of macromolecule is cellulose? (2023)
-
A.
Protein
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B.
Lipid
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C.
Carbohydrate
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D.
Nucleic acid
Solution
Cellulose is a carbohydrate and a major component of plant cell walls.
Correct Answer: C — Carbohydrate
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Q. Which biomolecule is involved in catalyzing biochemical reactions? (2022)
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A.
Carbohydrates
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B.
Proteins
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C.
Nucleic acids
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D.
Lipids
Solution
Proteins, specifically enzymes, catalyze biochemical reactions.
Correct Answer: B — Proteins
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Q. Which biomolecule is involved in the formation of cell membranes? (2020)
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A.
Proteins
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B.
Carbohydrates
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C.
Lipids
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D.
Nucleic acids
Solution
Lipids, particularly phospholipids, are essential for cell membrane structure.
Correct Answer: C — Lipids
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Q. Which biomolecule is made up of nucleotides? (2019)
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A.
Proteins
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B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are made of nucleotides.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily involved in energy transfer? (2019)
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A.
Proteins
-
B.
Carbohydrates
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C.
Lipids
-
D.
Nucleic acids
Solution
Carbohydrates are primarily involved in energy transfer.
Correct Answer: B — Carbohydrates
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Q. Which biomolecule is primarily used for energy in living organisms? (2019)
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A.
Proteins
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B.
Carbohydrates
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C.
Nucleic acids
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D.
Lipids
Solution
Carbohydrates are the primary source of energy for living organisms.
Correct Answer: B — Carbohydrates
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Q. Which of the following is NOT a lipid? (2023)
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A.
Triglycerides
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B.
Phospholipids
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C.
Cholesterol
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D.
Glucose
Solution
Glucose is a carbohydrate, not a lipid.
Correct Answer: D — Glucose
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