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9th Class Biology Chapter 9 Transport English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Stomata close when guard cells:
Choose an answer
Loss water
Gain chloride ions
Become turgid
Grain potassium ions
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Question # 2
The death of the heart tissue is called:
Choose an answer
Arterioclerosis
Atherosclerosis
Myocardial infarction
Thalassemia
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Question # 3
Which of the followings in not true about the opening and Closing of Stomata?
Choose an answer
Light helps in the opening and closing of stomata
K
+
ions are responsible for the opening and closing of stomata
The osmosis of water is responsible for the opening and closing of stomata
None for these
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Question # 4
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 # 5
Which of the following blood vessels have oxygenated blood?
Choose an answer
Pulmonary artery
Pulmonary vein
Superior vena cave
Inferior vena cave
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Question # 6
Heart consists of ............ chambers.
Choose an answer
Two
Three
Four
Five
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Question # 7
Blood is composed of ................. parts.
Choose an answer
One
Two
Three
fOUR
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Question # 8
A cubic millimeter of blood contain about ............. million RBCs.
Choose an answer
5
10
15
20
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Question # 9
Exchange of materials between blood and surrounding tissues occurs in:
Choose an answer
Arteries
Veins
Capillaries
All of these
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Question # 10
Which of the following is a function of human blood?
Choose an answer
It regulates body temperature
It transports wastes
It provides defence
All of the above
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Question # 11
Normal rate of heart beat in a healthy human being is ......... beats per minute.
Choose an answer
72
73
70
75
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Question # 12
What is correct about human red blood cells?
Choose an answer
Have limited life span
Are capable of phagocytosis
Produce antibodies
Are multinucleate
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Question # 13
Plasma is made up of water and _____________
Choose an answer
Metabolities and wastes
Salts and ions
Proteins
All of the above
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