Question

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1. The are an exception to cell theory.
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2. The term protoplasm was coined by .
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3. Ultra structure of cell organelles can be studied by .

Answer 1

1. Viruses are the exception to cell theory. They are borderline between living and non-living organisms. They are acellular organisms which are living inside the host.

2. Term protoplasm was coined by J.E. Purkinje.

3. The ultra structure of cell organelles can be studied by electron microscope.