Biology - Mock Test 107

Question 1061

During ventricular systole ?

A) Oxygenated blood is pumped into the pulmonary artery and deoxygenated blood is pumped into the artery. B) Oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary artery C) Oxygenated blood is pumped into the pulmonary vein and deoxygenated blood is pumped into the pulmonary artery. D) Oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary vein

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Question 1062

Maximum amount of oxygen is exchanged from the blood in the ?

A) capillaries surrounding tissue cells B) capillaries surrounding the alveoli C) left auricle of the heart D) arteries of the body

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Question 1063

Coronary heart disease is due to ?

A) Streptococci bacteria B) Inflammation of pericardium C) Weakening of the heart valves D) Insufficient blood supply to the heart muscles

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Question 1064

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

A) Blood group A B) Blood group B C) Blood group O D) Blood group AB

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Question 1065

he thread like tendons of papillary muscles inserted upon the flaps of tricuspid and bicuspid valves are ?

A) reticulate fibres B) yellow elastin fibres C) collagen fibres D) chordae tendinae

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Question 1066

Among the following stem cells, which are found in the umbilical cord?

A) Cord blood stem cells B) Adult stem cells C) Embryonic stem cells D) All of the above

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Question 1067

The vein that does not directly open into the heart is?

A) Pulmonary vein B) Postcaval vein C) Precaval vein D) Posterior mesenteric vein

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Question 1068

If one litre of water is introduced in human blood, then ?

A) BMR decreases B) BMR increases C) RBC collapses and urine production increases D) RBC collapses and urine production decreases

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Question 1069

Which chamber of the human heart has the thickest muscular wall?

A) Right ventricle B) Left auricle C) Left ventricle D) Right auricle

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Question 1070

When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release ?

A) Fibrinogen B) Thrombin C) Prothrombin D) Thromboplastin

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