MEDIUM
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Assertion: Bacteria are prokaryotic.

Reason: Bacteria do not possess true nucleus and membrane bound cell organelles. 

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Important Questions on General Introduction and Classification of Microorganisms

HARD

Observe this figure and answer the questions given below:

Question Image

  1. Name the part labelled as ‘1’.
  2. Name the heredity material of this virus.
  3. The person infected by this virus is attacked by various diseases.’ Explain.
EASY
Understand the relationship and complete the following.
Example: Children: milk teeth:: Adult: Permanent teeth.
Bacteria: typhoid :: _____protozoa/virus: dysentery.
MEDIUM
How do viruses differ from other micro-organisms such as bacteria?
EASY
State the causative microorganisms and modes of transmission of the following human disease:
Hepatitis B
EASY
Name the micro-organism used in bread-making which makes the bread-dough rise. How does it make the dough rise?