1. Which of the following is/are not a gram-positive bacteria?
A.Streptococci
B.Pseudomonas
C.Mycobacteria
D.None of these

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2. Gram-positive bacteria, responsible for food poisoning, is/are
A.Mycoplasmas
B.Pseudomonas
C.Clostridia
D.all of these

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3. The gram-positive bacteria lack __________ structure/component?
A.outer membrane
B.murein
C.teichoic acid
D.plasma membrane

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4. Which of the following gram-positive bacteria causes pharyngitis (sore throat)?
A.Neisseria
B.Streptococcus
C.Staphylococcus
D.Mycobacterium

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5. Which of the following gram-negative bacteria is/are not aerobic?
A.Pseudomonas
B.Neisseria
C.Escherichia
D.None of these

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6. The enzyme, which hydrolyses the murein is
A.perxoidase
B.tannase
C.lysozyme
D.none of these

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7. Bacterial spoilage is identified by which of the following morphological characteristics?
A.Encapsulation
B.Endospores
C.Cell aggregation
D.All of these

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