Biology - Study Mode

[#591] A person with 'AB' blood group is sometimes called a universal recipient because of the
Correct Answer

(B) Lack of antibodies in his blood

Explanation

Solution: A person with blood group AB is considered as the universal recipient as it contains both antigens such as A and B but no antibodies in plasma and thus, can accept all the blood type.

[#592] Karl Landsteiner discovered
Correct Answer

(B) Blood groups

Explanation

Solution: Karl Landsteiner discovered blood groups.

[#593] Systolic and diastolic pressure in a healthy man is
Correct Answer

(A) 120 mm and 80 mm

Explanation

Solution: For a normal reading, your blood pressure needs to show a top number (systolic pressure) that's between 90 and less than 120 and a bottom number (diastolic pressure) that's between 60 and less than 80.

[#594] Red blood corpuscles is produced into
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.

[#595] Oxygenated blood flows through which vessel?
Correct Answer

(A) Pulmonary Veins

Explanation

Solution: The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.