Question

The pH of blood is-
A) More in veins and less in arteries
B) More in arteries and less in veins
C) Same
D) Not definite

Answer 1

Hint: Blood includes the red blood cells and white blood cells, platelets, blood vessels, buffers and blood are formed inside bone marrow, lymph nodes, spleen and all the proteins involved in bleeding and clotting factors. Hemostasis and thrombosis. Red blood cells live longer than white blood cells in the body. Buffers determine the Ph which alter the reaction’s PH in a fluid. Different types of buffers present in blood are- bicarbonate, phosphate and hemoglobin and protein systems.

Complete answer-
Option A) More in veins and less in arteries- blood running through veins is more acidic and as the blood’s pH is hence, the pH is not more in venous blood than arteries.
Option A is not the correct answer.
Option B) More in arteries and less in veins- pH in the arteries is more than the venous blood as veins consist of dissolved carbon-dioxide and waste materials more than the arteries which makes the blood in veins more acidic.
Option B is the correct answer.
Option C) Same – veins carry impure blood or blood mixed with lactic acid along with waste metabolic materials and arteries carry oxygenated blood.
Option C is not the correct answer.
Option D) Not definite- the encounter between arteries and venous blood is not the same as hydrogen ions present in blood increase the acidity which lowers the pH in blood.
Option D is not the correct answer.

Hence, option B is the correct answer.

Note:
There are also some facts in blood as- blood constitutes ninety percent of water and ten percent of these components. Water helps blood in maintaining its fluidity, otherwise blood can clot in the body due to a high amount of different clotting factors. So, it is essential for water balance in the body in order to keep blood flow balanced.