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Online Tests
Biology 9th Class English Medium Online Test MCQs With Answers
Question # 1
How many percent of the light falling on the leaf surface is absorbed:
Choose an answer
5%
6%
7%
1%
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Question # 2
Fluid mosaic model explains the structure of:
Choose an answer
Cell membrane
Cytoplasm
Cell wall
Milochondria
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Question # 3
A hypothesis must be testable to be scientifically valid. Being testable means that:
Choose an answer
Some observations could prove that hypothesis is incorect
Only a controlled experiment can indicate whether the hypothesis is correct or incorrect
The hypothesis is proven wrong
The opposite of hypothesis is tested and proven worng
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Question # 4
Which solution has equal concentrations of solutes?
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Hypotonic
Hypertonic
Isotonic
Toxic
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Question # 5
.......... is the most abundant .
Choose an answer
Chlorophyll a
Chlorophyll b
Chlorophyll c
Chlorophyll d
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Question # 6
If gram of carbohydrates is fully oxidized it produce about .............. kilojoules of energy.
Choose an answer
16 Kilojoules
17 Kilojoules
18 Kilojoules
19 Kilojoules
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Question # 7
ATP molecule was discovered by:
Choose an answer
Fritz Lipmann
Calvin
Karl Lohmann
Hans krebs
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Question # 8
What may be the reason that children need more calcium and iron?
Choose an answer
Both calcium and iron for bones
Both calcium and iron for blood
Calcium for blood and iron for bones
Calcium for bones and iron for blood
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Question # 9
When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction what would you predict?
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All active sites have been occupied by substrate molecules
The enzyme molecules have denatured
More substrate acted as inhibitor
More substrate has disturbed the pH of the medium
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Question # 10
The division of nucleus is:
Choose an answer
Mitosis
Karyokinesis
Cytokinesis
Meiosis
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Question # 11
Which of the following does not occur in the oral cavity?
Choose an answer
Lubrication of the food
Beginning of protein digestion
Breaking the food into small fragments
All of the above do occur in the oral cavity
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Question # 12
No of steps of biological method are
Choose an answer
Six
Seven
Two
Eight
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Question # 13
The cells which can divide in plants are:
Choose an answer
Sclerenchyma cells
Collenchyma cells
Parenchyma cells
Meristematic cells
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