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Online Tests
Biology 9th Class English Medium Online Test MCQs With Answers
Question # 1
What would be the best experimental design for testing a hypothesis that bean plants require sodium?
Choose an answer
Measure the amount of sodium in a few bean plants
Grow bean plants with and without sodium
Look for sodium in leaf tissues
Analyze root contents for sodium
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Question # 2
Viruses can be _____________
Choose an answer
Seen
Crystallized
Store
None
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Question # 3
Stomata close when the guard cells:
Choose an answer
Lose water
Gain chloride ions
Become turgid
Gain potassium ions
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Question # 4
Phyla are grouped into ____________
Choose an answer
Classes
Family
Kingdom
Order
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Question # 5
The rate of transpiration is increased when:
Choose an answer
Low light
Temperature decrease
Humidity increased
None of these
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Question # 6
Which ions are involved in opening and closing of stomata?
Choose an answer
Potassium ions
Chloride ions
Sodium ions
Iodide ions
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Question # 7
The amount of plasma in blood is:
Choose an answer
35%
45%
55%
65%
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Question # 8
Organelles assemble ot form
Choose an answer
Tissues
Systems
Organ
Cells
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Question # 9
Fungi and ___________ bacteria get the prepared food.
Choose an answer
Motile
Non-motile
Phtosynthetic
Non-photosynthetic
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Question # 10
Down's syndrome is case of .................. .
Choose an answer
Autosomy
Monosomy
Trisomy
Tetrasomy
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Question # 11
Which of the following characters is not true about enzymes?
Choose an answer
Globular in shape
Non-specific
Protein in nature
Highly reactive
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Question # 12
.............. have no membrane bounded nucleus.
Choose an answer
Prokaryotic cells
Eukaryotic celss
Both
NOne
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Question # 13
................... support Mathias Schleiden.
Choose an answer
Mathias Schleiden
Theodor Sachwann
Robert Brown
Robert Hooke
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