Question # 1

Which of the following chamber has the thickest walls in human heart?

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Right atrium

Left atrium

Left ventricle

Right ventricle

The percentage of inorganic salts and in the plasma is:

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0.6

0.7

0.8

0.9

Which of the following protein takes in part in blood clotting:

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Albumin

Prothrombin

Fibrinogen

Fibrin

Which of the following tissue layer us found in all blood vessels?

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Smooth muscle

Endothelium

Skeletal muscle

Connective tissue

Atherosclerosis is caused due to ............. .

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Hypertension

Smoking

Diabetes

All of above

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

Which ions are involved in opening and closing of stomata?

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Potassium ions

Chloride ions

Sodium ions

Iodide ions

Which of these statements is correct about the circulatory system?

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It transports hormones

Capillaries have thicker walls than veins

Systemic circulation carries blood to and from the lunges

All of the above are true

The rate of transpiration is increased when:

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Low light

Temperature decrease

Humidity increased

None of these

A patient with blood group A can be given the blood of donor who has:

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Blood group A or AB

Blood group A or O

Blood Group A only

Blood group O only

Which of these are responsible for blood clotting?

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Platelets

Erythrocytes

Neutrophils

Baseophils

Platelets life span in about ........... days.

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6-7

7-8

5-6

8-9

What is correct about human red blood cells?

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Have limited life span

Are capable of phagocytosis

Produce antibodies

Are multinucleate

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