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9th Class Biology Chapter 9 Transport English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Stomata close when the guard cells:
Choose an answer
Lose water
Gain chloride ions
Become turgid
Gain potassium ions
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Question # 2
Plasma constitute about ............. %.
Choose an answer
50%
55%
40%
45%
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Question # 3
Which of the following is a type of leukocyte?
Choose an answer
Macrophage
Eosinophil
Monocyte
All of the above
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Question # 4
Find the correct path of blood circulation.
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Left atrium, left ventricle, lungs, right atrium, right ventricle, body
Right atrium, right ventricle, lungs, left atrium, left ventricle ,body
Left atrium, left ventricle, right atrium, right ventricle, lungs body
Right atrium, lungs, right ventricle, left atrium, body , left ventricle
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Question # 5
One complete cardiac cycle takes ......... second .
Choose an answer
0.2 sec
0.5 sec
0.8 sec
0.9 sec
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Question # 6
Which of these are responsible for blood clotting?
Choose an answer
Platelets
Erythrocytes
Neutrophils
Baseophils
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Question # 7
Stomata close when guard cells:
Choose an answer
Loss water
Gain chloride ions
Become turgid
Grain potassium ions
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Question # 8
There is separation of oxygenated and deoxygenated blood in birds and mammals because:
Choose an answer
The ventricles are completely divided
The ventral aorta is divided into aortic and pulmonary trunk.
The aortic arch is divided into two systemic arches.
None of the above
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Question # 9
Pus is formed from which of the following dead white blood cells?
Choose an answer
Lymphocytes
Eosinophils
Monocytes
Basophils
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Question # 10
Heart consists of ............ chambers.
Choose an answer
Two
Three
Four
Five
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Question # 11
The grater the no. of stomata on leaf , the ............. would be transpiration.
Choose an answer
Higher
Lower
Remain constant
None
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Question # 12
................ is the first organ which comes out of seed.
Choose an answer
Stem
Root
Leaf
All
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Question # 13
Platelets life span in about ........... days.
Choose an answer
6-7
7-8
5-6
8-9
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