L1 - General Bacteriology Review Flashcards
Which of the following is a prokaryote?
A. Bacteria B. Fungus C. Protozoa D. Helminths
A. Bacteria
A prokaryote is an organism with;
A. No chromosome B. No nucleus C. No proteins D. No nucleic acid
B. No nucleus
Note: “Pro-“ means before; Chromosomes are present in almost all living organisms
Which of the following image is bacteria ?
B
Mycology is the study of;
A. Mycobacterium B. Mycoplasma C. Fungus D. Protozoa E. Virus
C. Fungus
Which of the following is widely used for phylogenetic analysis?
A. Mitochondria genes B. Lysosomal genes C. Chromosomes D. DNA coding for ribosomes
D. DNA coding for ribosomes
Which one of the following is a cell wall component unique to bacteria ?
A. Proteoglycan B. Peptidoglycan C. Lipoplysaccharide D. Mycolic acid
B. Peptidoglycan
________ is used to classify bacteria inteo genes or species based on the sequences or macromolecules such as DNA, RNA and proteins.
Phylogeny
The majority of bacteria generally contain a single circular chromosome
True or False?
True
Which of the following bacteri has two circular chromosones ?
A. Mollicutes (Mycoplasma)
B. Leptospira
C. Borrelia burgdorferi
B. Leptospira
Gram + stain..
A. violet/blue (retains crystal violet)
B. Pink (picks up safranin)
Measurement of bacterial growth is by:
A. Counting colonies
B. Turbidimetry
C. Flow cytometry
D. All the above
D. All the above
Endoflagella or axial filaments are appendages present
in the periplasmic space is used for ..
A. Adherence
B. Locomotion
C. Antigenicity
B. Locomotion
Name the 5 bacterial structures that make them virulent
- Flagella
- Endoflagella
- Pili or Fimbriae
- Capsule
- Spores
Capsule; is made of _________ outer coating of the bacteria.
Which helps organisms to evade phagocytosis
Polysaccharide
This is produced when bacteria are
exposed to adverse conditions and
when essential nutrients are
depleted.
Endospores
