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The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Which of the following can be made into crystal?
  • A
    A bacterium.
  • B
    An Amoeba.
  • ✓
    A virus.
  • D
    A sperm.
✓

Answer

Correct option: C.
A virus.
Viruses are considered as an intermediate between living and non$-$living cells because they cannot metabolise and reproduce on their own. They can reproduce only when enters in a host’s body. They are an exception to cell theory.
A virus crystal is a collection of thousands of viruses. A viral crystal is a pore collection used for chemical studies.

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