Mycoplasma and Bacteria MCQ Question with Answer

Mycoplasma and Bacteria MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 15
Which of the following statement is correct ?

All bacteria are autotrophic

All bacteria are heterotrophic

All bacteria are photosynthetic

Most of the bacteria are heterotrophic but some are autotrophic

Question No : 16
A free living bacterium capable of fixing atmospheric nitrogen is

Staphylococcus

Streptococcus

Azotobacter

None of these

Question No : 17
Bacteria reproduce asexually by means of

fission

endospores

cyst

all of these

Question No : 18
The bacteria which do not bear flagella are termed as

atrichous

lophotrichous

amphitrichous

peritrichous

Question No : 19
Bactcrial cell-wall is composed of

chitin

mucopeptidc

lignin

suberin

Question No : 20
Citrus canker is a common disease of lemon and oranges. It is caused by

Bacillus subtilis

Rhizobiunt

E. coli

None of these

Question No : 21
Bacteria was first discovered by

Robert Koch

Louis Pasteur

A.V. Leeuwenhoeck

Robert Hooke