Chemically the capsule may be polypeptide polysaccharide either (a) or (b) none

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Home ‣ Microbiology ‣ Bacteria Morphology Comments

Question
Chemically the capsule may be
Options
A. polypeptide
B. polysaccharide
C. either (a) or (b)
D. none of these

Correct Answer

either (a) or (b)

Bacteria Morphology problems

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1. The cell walls of Gram positive bacteria contain two modified sugar, viz. N- acetylgucosamine (NAG) and N- acetylmuramic acid (NAM). They are covalently linked by
Options
A. ?- 1,4-glycosidic bond
B. ?-1,6-glycosidic bond
C. ?- 1,6-glycosidic bond
D. ?- 1,4-glycosidic bond

Discuss

Correct Answer: ?- 1,4-glycosidic bond

2. The common word for bacteria which are straight rod in shape is
Options
A. cooci
B. bacilli
C. spirilla
D. pleomorphic

Discuss

Correct Answer: bacilli

3. The other name for peptidoglycan is
Options
A. mucopeptide
B. murein
C. both (a) & (b)
D. none of these

Discuss

Correct Answer: both (a) & (b)

4. Which of the following has Chinese letter arrangement?
Options
A. Bacillus anthracis
B. Mycobacterium tuberculosis
C. Clostridium tetani
D. Corynebacterium diphtheriae

Discuss

Correct Answer: Corynebacterium diphtheriae

5. Cyanobacteria have
Options
A. a gram-positive cell wall
B. a gram-negative cell wall
C. Neither (a) nor (b)
D. No cell wall

Discuss

Correct Answer: a gram-negative cell wall

6. The cell wall of
Options
A. gram-positive bacteria are thicker than gram-negative bacteria
B. gram-negative bacteria are thicker than gram-positive bacteria
C. both have same thickness but composition is different
D. none of these

Discuss

Correct Answer: gram-positive bacteria are thicker than gram-negative bacteria

7. The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as
Options
A. lipase
B. lysozyme
C. pectinase
D. peroxidase

Discuss

Correct Answer: lysozyme

8. A single polar flagella is known as
Options
A. monotrichous
B. lophotrichous
C. amphitrichous
D. none of these

Discuss

Correct Answer: monotrichous

9. The protein from which hook and filaments of flagella are composed of, is
Options
A. keratin
B. flagellin
C. gelatin
D. casein

Discuss

Correct Answer: flagellin

10. Peptidoglycan is also known as
Options
A. N-acetyl muramic acid
B. murein mucopeptide
C. N acetylglucosamine
D. mesodiaminopimetic acid

Discuss

Correct Answer: murein mucopeptide

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