Microbiology Lecture Notes Ppt: Medical

Specific viral surface proteins bind to complementary receptor sites on the host cell membrane.

[ Bacterial Cell Wall Structures ] Gram-Positive Gram-Negative ┌───────────────────────┐ ┌───────────────────────┐ │ Thick Peptidoglycan │ │ Outer Membrane │ │ Layer (20-80 nm) │ │ (Lipopolysaccharide)│ ├───────────────────────┤ ├───────────────────────┤ │ │ │ Thin Peptidoglycan │ │ Plasma Membrane │ ├───────────────────────┤ │ │ │ Plasma Membrane │ └───────────────────────┘ └───────────────────────┘ Bacterial Cell Wall Architecture medical microbiology lecture notes ppt

Prokaryotic cells, cell wall (Gram-positive vs. Gram-negative), capsule, flagella, pili. cell wall (Gram-positive vs. Gram-negative)

Pili/Fimbriae : Mediate adherence to host cells; sex pili handle conjugation. medical microbiology lecture notes ppt

: Institutions like MIT or Johns Hopkins often share lecture materials.

Nucleic acid (DNA/RNA) + capsid (envelope optional).

Viruses are acellular pathogens requiring host cellular machinery to replicate.