Body Fluids and Circulation Chapter-Wise Test 7

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which blood component is responsible for carrying oxygen?

Plasma
Platelets
Erythrocytes
Leukocytes
3

Erythrocytes (RBCs) contain hemoglobin, which binds with oxygen and facilitates its transport.

Which of the following statements about plasma proteins is correct?

Albumin helps maintain blood osmotic pressure.
Globulins are not involved in immunity.
Fibrinogen plays no role in blood clotting.
Plasma proteins are mainly produced in the spleen.
1

Albumin maintains osmotic pressure, ensuring proper fluid balance between blood and tissues.

Which of the following blood cells play a role in immunity?

Erythrocytes
Leukocytes
Platelets
Thrombocytes
2

Leukocytes (WBCs) are responsible for the immune response and protecting the body from infections.

Which of the following structures prevents the mixing of oxygenated and deoxygenated blood in the heart?

Interatrial septum
Atrio-ventricular septum
Interventricular septum
Purkinje fibers
3

The interventricular septum separates the left and right ventricles, preventing mixing of oxygenated and deoxygenated blood.

Which disorder occurs due to an increase in blood pressure above normal levels?

Hypotension
Hypertension
Bradycardia
Anemia
2

Hypertension (high blood pressure) occurs when blood pressure consistently exceeds normal levels (120/80 mmHg).

Which of the following is correct about the circulatory system?

The human circulatory system is an open circulatory system.
Veins always carry oxygenated blood.
The systemic circulation carries oxygenated blood to body tissues.
Pulmonary veins carry deoxygenated blood.
3

Systemic circulation distributes oxygenated blood from the left ventricle to body tissues and returns deoxygenated blood to the right atrium.

Which of the following is incorrect about the function of platelets?

They help in blood clotting.
They are derived from megakaryocytes.
They transport oxygen to tissues.
They release clotting factors upon activation.
3

Platelets are primarily involved in blood clotting, not oxygen transport, which is the function of RBCs.

Which blood vessel carries oxygenated blood from the lungs to the heart?

Pulmonary artery
Aorta
Vena cava
Pulmonary vein
4

The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.

Which of the following statements about hypertension is correct?

It is characterized by low blood pressure.
It can lead to heart diseases and kidney damage.
It occurs when blood pressure is below 90/60 mmHg.
It is not affected by lifestyle factors.
2

Hypertension (high blood pressure) increases the risk of heart diseases, stroke, and kidney damage.

What is the function of lymph in the body?

Oxygen transport
Fat absorption
Carbon dioxide removal
Protein synthesis
2

Lymph helps in the absorption of fats from the small intestine through lacteals.

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