Which type of protein structure describes the overall 3D shape of a protein.
a) Primary structure
b) Secondary structure
c) Tertiary structure
d) Quaternary structure
Answer: c) Tertiary structure
What is the function of RNA polymerase in transcription.
a) To synthesize new RNA strands
b) To unwind the DNA double helix
c) To proofread newly synthesized RNA strands
d) To repair DNA damage
Answer: a) To synthesize new RNA strands
Which type of lipid is a major component of cell membranes.
a) Phospholipid
b) Triglyceride
c) Cholesterol
d) Steroid hormone
Answer: a) Phospholipid
Which type of bond holds together the two strands of DNA.
a) Peptide bond
b) Ionic bond
c) Hydrogen bond
d) Covalent bond
Answer: c) Hydrogen bond
What is the function of the mitochondria in the cell.
a) To synthesize proteins
b) To store genetic information
c) To produce energy in the form of ATP
d) To digest cellular waste products
Answer: c) To produce energy in the form of ATP
Which type of RNA is responsible for carrying amino acids to the ribosome during protein synthesis.
a) Messenger RNA
b) Transfer RNA
c) Ribosomal RNA
d) MicroRNA
Answer: b) Transfer RNA
What is the function of DNA polymerase in DNA replication.
a) To unwind the DNA double helix
b) To synthesize new DNA strands
c) To proofread newly synthesized DNA strands
d) To repair DNA damage
Answer: b) To synthesize new DNA strands
Which type of carbohydrate is known as a “complex carbohydrate”.
a) Monosaccharide
b) Disaccharide
c) Oligosaccharide
d) Polysaccharide
Answer: d) Polysaccharide
Which type of fatty acid has no double bonds.
a) Saturated fatty acid
b) Monounsaturated fatty acid
c) Polyunsaturated fatty acid
d) Trans fatty acid
Answer: a) Saturated fatty acid
Which molecule carries oxygen in the blood.
a) Hemoglobin
b) Myoglobin
c) Collagen
d) Elastin
Answer: a) Hemoglobin
