BODY FLUIDS AND CIRCULATION

Question 1

Which type of circulatory system is found in arthropods and molluscs?

A. Closed circulatory system
B. Open circulatory system
C. Double circulatory system
D. Single circulatory system

Answer 1

B. Open circulatory system

Question 2

Which type of circulatory system is present in annelids and chordates?

A. Open circulatory system
B. Closed circulatory system
C. Incomplete circulatory system
D. Double circulatory system

Answer 2

B. Closed circulatory system

Question 3

Which of the following is NOT a function of lymph?

A. Carrier for nutrients and hormones
B. Exchange of gases between blood and tissues
C. Transport of fats
D. Immune responses

Answer 3

B. Exchange of gases between blood and tissues

Question 4

When is there a possibility of the maternal blood being exposed to the Rh+ve blood from the fetus?

A. During the first trimester
B. During the second trimester
C. During the delivery of the first child
D. During the second pregnanc

Answer 4

C. During the delivery of the first child

Question 5

What protects the human heart?

A. The rib cage
B. The pericardium
C. The diaphragm
D. The sternum

Answer 5

B. The pericardium

Question 6

What type of tissue makes up the interatrial and interventricular septa?

A. Epithelial tissue
B. Muscle tissue
C. Connective tissue
D. Nervous tissue

Answer 6

C. Connective tissue

Question 7

Which structure emerges on top of the interventricular septum and divides into right and left bundles?

A. Sino-atrial node (SAN)
B. Atrioventricular node (AVN)
C.Atrioventricular bundle (AV bundle)
D. Purkinje fibres

Answer 7

Atrioventricular bundle (AV bundle)