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- D Herelle
- Charles Chamberland
- Ivanowski
- Twort
Biology MCQs
All of the following are involved in nitrification except _____.
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- Rhizohium
- Nitrobacter
- Nitrosomonas
- None of these
Final acceptor of electrons in respiratory chain is_____.
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- NADH
- Oxygen
- Cytochrome a3
- Water
In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon_____.
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- Their physical properties like size & weight
- Physical properties of the medium like its density
- Both a and b
- Their electrical properties like their charges
Simple tissues and complex tissues are two groups of_____issues.
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- Meristematic
- Epidermal
- Supporting
- Permanent
Maize is an example of_____.
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- Monocot
- Dicot
- Gymnosperms
- All of these
A species inhabiting different geographical areas is known as_____.
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- Hetropatric Specie
- Homopatric Specie
- Astroparic specie
- Allopatric Specie
Which of the following are insulin dependent Glut receptors?
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- Glut 1&3
- Glut 4
- Glut 2
- Glut 1
Which of the following allows precise muscular movements_____.
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- Cerebrum
- Thalamus
- Hypothalamus
- Cerebellum
Stoma, found in the epidermis of leaves closes when guard cells _____.
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- Gain Water
- Lose Water
- Exchange gas
- All of these