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Bacteria Questions with complete solution

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  • Microbiology

Bacteria Questions with complete solution Bacteria: Microbiology What are the characteristics of bacteria? - correct answer Nucleoid instead of nucleus Chromosome of typical bacteria (EX. E. coli): Single (haploid), double-stranded, circular molecule of DNA What are the three main shapes ...

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  • August 11, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bacteria
  • bacteria questions with complete solution

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  • Microbiology
  • Microbiology

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Bacteria: Microbiology
What are the characteristics of bacteria? - correct answer ✔Nucleoid instead
of nucleus
Chromosome of typical bacteria (EX. E. coli): Single (haploid), double-
stranded, circular molecule of DNA


What are the three main shapes of bacteria? - correct answer ✔Cocci
(coccus): Circular
Bacilli (bacillus): Rod-shaped
Spirochetes (spirochete): Spiral-shaped


Capsule - correct answer ✔Polysaccharides that allows capsule to bind to
cell surfaces and evade phagocytosis


Flagella - correct answer ✔Thin, rigid filament that allows movement of
bacteria


Fimbrae - correct answer ✔Contributes to bacteria's ability to cause diseases
by binding onto surface of body's cell


Pili - correct answer ✔Thin, hair-like appendage that helps attachment to
mucosal cells and involved in bacterial conjugation


Gram-positive - correct answer ✔Thick peptidoglycan layer + plasma
membrane (one cell membrane)


Lipoteichoic acid in peptidoglycan layer (allows binding to cell walls or being
recognized by macrophages or phagocytes)

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