Quiz 3: Bacterial Ultrastructure

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Unit 1: Morphology and Ultrastructure of Bacteria

Bhawana Kapoor

India

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Quiz 3: Bacterial Ultrastructure


Froggy Jumps Quiz 3: Bacterial UltrastructureVersion en ligne Unit 1: Morphology and Ultrastructure of Bacteria par Bhawana Kapoor 1 Which cell envelope feature distinguishes Gram-positive bacteria from Gram-negative bacteria? a Thick peptidoglycan layer with teichoic acids b Outer membrane with LPS c Thin peptidoglycan layer 2 What is the outer membrane of Gram-negative bacteria rich in? a Mycolic acids b Lipopolysaccharide (LPS) c Teichoic acids 3 Which bacterial structure stores genetic material outside the chromosome? a Ribosome b Nucleoid c Plasmid 4 Which structure is primarily responsible for motility in many bacteria? a Flagellum b Pili c Capsule 5 Which arrangement describes bacteria with flagella all around the cell surface? a Peritrichous b Lophotrichous c Monotrichous 6 What term describes a thick, gelatinous layer protecting some bacteria? a Capsule (glycocalyx) b Endospore c S-layer 7 Which feature is unique to acid-fast bacteria like Mycobacterium? a Teichoic acids b Mycolic acid in the cell wall c Thin peptidoglycan 8 Which cellular structure is the site of ribosomes in bacteria? a Capsule b Cytoplasm (ribosomes are 70S) c Cell wall 9 Which specialized body helps bacteria survive harsh conditions? a Pili b Glycocalyx c Endospore 10 What is the typical shape class of cocci and bacilli in bacterial morphology? a Spirilla and vibrios b Archaea shapes c Cocci and bacilli