Q61. Function of teichoic acids?
Hint: They help in adherence and immune response.
Q62. Which cell wall lacks LPS?
Hint: Gram-positives lack LPS.
Q63. Mycoplasma has no:
Hint: It’s bounded only by membrane.
Q64. Mycoplasma membrane contains:
Hint: Uniquely among prokaryotes, they have sterols.
Q65. Site of oxidative phosphorylation in bacteria:
Hint: Membrane houses the transport chain.
Q66. Mesosome function:
Hint: Helps in cell division and DNA anchoring.
Q67. Ribosome size in bacteria:
Hint: Made of 30S and 50S subunits.
Q68. Antibiotics target bacterial ribosomes because:
Hint: They are structurally distinct from eukaryotic ones.
Q69. Corynebacterium diphtheriae has:
Hint: Metachromatic granules are diagnostic.
Q70. Plasmids are:
Hint: Extra-chromosomal replicating elements.
✅ Answer Key
Q61: B) Attachment & shock induction Q62: B) Gram positive Q63: A) Cell wall Q64: B) Sterols Q65: D) Cytoplasmic membrane Q66: B) Cell division & DNA anchoring Q67: D) 70S Q68: C) Structurally distinct (smaller) Q69: A) Volutin (metachromatic) granules Q70: C) Extrachromosomal circular DNA