Total Questions : 20
Total time :20 min
Total Marks : 20 x 3 = 60 Marks
Each Correct Question carries : 3 Marks
Each incorrect Question Carries : -1 Marks
Each Unattempted Question carry : 0 Marks
Be careful On Negative Markings
Why are protozoans regarded as primitive animals?
Thermus aquaticus is a species of bacteria found living in the hot springs in Yellowstone National Park. Hot springs typically are areas characterized by low oxygen levels, low light levels and high concentrations of sulfur and calcium carbonate.
An algal culture is grown and two different species of protozoans A and C are inoculated into the culture which feeds on algae. For the time period during which algae is not acting as a limiting factor, protozoan A reproduces asexually once every hour and protozoan C reproduces one every 1.5 hours.
Lichen do not grow in cities because of the
Match the following lists.
The structure(s) found in chlamydomonas but not in amoeba is/are:
The absence of cell wall but the presence of Golgi body and ribosomes in a unicellular organism indicates that it belongs to
It is difficult to make anti-viral drugs because
Select the true statements out of the following.
Which class of protozoa is totally parasitic?
Lichens are important in the studies on atmospheric pollution because they
Highly resistant thick walled spores produced by bacterial cells during unfavourable conditions are called as
CJD caused by
A semi-parasite relationship between the algal and fungal components of a lichen is termed as
Read the following statements about four kinds of microorganisms P, Q, R, and S.
Bovine spongiform encephalopathy is a disease caused by prions in
Lichens multiply by
An example of tumour inducing RNA virus is
In order to attack a host cell
Which of the following is unicellular?
Study the following lists.
Methanogens can be found
Bacterial ribosomes are found
Cell of Amoeba is
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