(Part 1) 1.10 Cellular appendages Flashcards
Structure use for motility
Flagella
Types of flagella that has flagellum on one pole
Monotrichous
Types of flagella that has flagella on both sides
Lophotrichous
Types of flagella that has single flagellum on both sides
Amphitrichous
Types of flagella that has flagella all over the organism
Peritrichous
Example of bacteria with peritrichous?
Enterobacteriaceae
A minute filamentous appendages that serve as bacterial attachment
Pili and Fimbriae
Used in bacterial conjugation
Sex pilus
What is the protein for bacteria that has sex pilus?
F factor
Protein component for flagella?
Flagellin
Protein component for Fimbriae and pili?
Pilin
2 types of glycocalyx?
Capsule and Slime layer
- tightly bounded to cell
- Thicker and well organized
- Composed of polysaccharides
Capsule
- Loosely bound to cell wall
- Thinner and unorganized
- Polysaccharides/Polypeptides
Slime layer
Acts as an adherence and serves as protection from dehydration and nutrient loss
Slime layer
How capsule became a virulence factor?
Evades phagocytosis
Nucleoid contain single chromosome
T or F
T
Nucleoid is attach to ______, a saclike structure in the cell membrane
mesosome
Site of protein synthesis
Ribosome
Subunit of Ribosomes?
50s and 30s (70s)
Ribosome is free in cytoplasmic membrane and attaches to cytoplasm
T or F
F
What are the 2 cytoplasmic inclusions?
Metachromatic granules
Bipolar bodies
Bacteria that has metachromatic granules
Corynebacterium diptheriae
Other name for metachromatic granules?
Volutin granules
Babes-Ernst Granules
What bacteria demostrates bipolar bodies
Yersinia pestis
Bipolar bodies describes as?
Safty pin appearance
Dormant or resting stage of a bacterial cell which describes as a highly resistant desiccation, heat, and chemical agent
Endospores
Composition of endospore?
Dipicolinic acid
Acts as a survival structure for bacteria preventing bacterial death due to unfavorable environments or nutrient deficiency.
Endospore
Endospore are stained in gram stain
T or F
f
2 bacteria with endospore?
Bacillus
Clostridium
Bacillus sporulates spore anaerobically while Clostridium sporulates spores aerobically
T or F
F
Baligtad
Endospores are produce during Exponential phase
T or F
F
Stationary phase where the environment is unfavorable and nutrients are limited
