Biology - Study Mode

[#841] Amount of blood found in the body of man is
Correct Answer

(C) 7% total body weight

Explanation

Solution: Amount of blood found in the body of man is 7% total body weight.

[#842] The site of RBC formation in human body is
Correct Answer

(D) Bone marrow

Explanation

Solution: Red blood cells are formed in the red bone marrow of bones. Stem cells in the red bone marrow called hemocytoblasts give rise to all of the formed elements in blood.

[#843] Important component that helps in clotting of the blood is called ________ .
Correct Answer

(B) Platelets

Explanation

Solution: The main job of platelets, or thrombocytes, is blood clotting. Platelets are much smaller in size than the other blood cells. They group together to form clumps, or a plug, in the hole of a vessel to stop bleeding.

[#844] The valve present between left auricle and left ventricle is
Correct Answer

(A) Mitral

Explanation

Solution: The valve present between left auricle and left ventricle is mitral valve.

[#845] Function of heart in human body is
Correct Answer

(A) Work like pumping machines

Explanation

Solution: Function of heart in human body is work like pumping machines.