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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.

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Question No : 29
Which of the following statements about bacteria is not true ?

Some bacteria are parasitic
Food poisoning is caused by products of putrefying bacteria
Bacteria reproduce by cell division, as often as once every twenty minutes
Bacteria manufacture food by help of chloroplasts

Question No : 30
Chlorophyll 'a' occurs in

all plants except fungi
all green plants except prokaryotes
all green plants except bacteria
all green plants except cyanobacteria

Question No : 31
Bacterial activity is minimum at

high temperature
moderately high temperature
moderate temperate
low temperature

Question No : 32
Sexual reproduction in E. coli is known as

sexduction
transduction
conjugation
transformation

Question No : 33
Which one of the following fixes CO2 into carbohydrates ?

Rhizobiunt
Azotobacter
Clostridium
Rhodospirilium

Question No : 34
The Streptococcus lactis is responsible for

tanning of leather
flavouring of tea leaves
curdling of milk
none of these

Question No : 35
An example of chemoautotrophic bacterium is

mitochondria
mesosomes
ribosomes
cell membrane

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