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9th Class Biology Chapter 9 Transport English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
According to pressure flow mechanism which is the actual force behind the movement of food in phloem?
Choose an answer
Drop in the pressure at the sink end
Gain of water at the sink end
Osmotic pressure
All of these
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Question # 2
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 # 3
A patient with blood group A can be given the blood of donor who has:
Choose an answer
Blood group A or AB
Blood group A or O
Blood Group A only
Blood group O only
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Question # 4
Which of the following contains deoxygenated blood in an adult human?
Choose an answer
Left atrium
Pulmonary artery
Pulmonary vein
All of the above
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Question # 5
ABO blood group system was discovered by:
Choose an answer
T.H Morgan
Hans krebs
Winhelm kuhne
Karl landsteiner
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Question # 6
Which of the following is a type of leukocyte?
Choose an answer
Macrophage
Eosinophil
Monocyte
All of the above
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Question # 7
Blood is composed of ................. parts.
Choose an answer
One
Two
Three
fOUR
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Question # 8
Which of these statements is correct about the circulatory system?
Choose an answer
It transports hormones
Capillaries have thicker walls than veins
Systemic circulation carries blood to and from the lunges
All of the above are true
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Question # 9
Which of the following tissue layer is found in all blood vessels?
Choose an answer
Smooth muscle
Endothelium
Skeletal muscle
Connective tissue
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Question # 10
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 # 11
When do the atria contract?
Choose an answer
Before diastole
After systole
During diastole
During systole
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Question # 12
A cubic millimeter of blood contain about ............. million RBCs.
Choose an answer
5
10
15
20
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Question # 13
Arteries can be divided into ........... types.
Choose an answer
Two
Three
Four
Five
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Question # 14
Capillaries are ............ micrometer in diameter.
Choose an answer
7-8 micrometer
8-10 micrometer
8-14 micrometer
7-10 micrometer
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