Basic microbiology concepts including microbial classification, infection basics, and sterilization tested on the HESI A2 science section.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What type of cell do bacteria have?
- Prokaryotic cells (no true nucleus)
- What are the three domains of life?
- Bacteria, Archaea, and Eukarya
- What does the Gram stain test classify bacteria by?
- Cell wall composition
- Why do Gram-positive bacteria stain purple?
- A thick peptidoglycan layer retains the crystal violet dye
- Why do Gram-negative bacteria stain pink?
- A thin peptidoglycan layer and outer membrane cause them to take up the pink counterstain instead
- What is a round-shaped bacterium called?
- Coccus
- What is a rod-shaped bacterium called?
- Bacillus
- What is a spiral-shaped bacterium called?
- Spirillum
- What is the term for bacteria arranged in pairs?
- Diplococci
- What is the term for bacteria arranged in chains?
- Streptococci
- What is the term for bacteria arranged in grape-like clusters?
- Staphylococci
- Why are viruses called obligate intracellular parasites?
- They can only replicate inside a living host cell
- Viruses are considered ____ because they are not made up of cells.
- acellular
- What compound makes up fungal cell walls?
- Chitin
- What are protozoa?
- Single-celled eukaryotic organisms