Question

Which among the following statements are true:

• A. The colour of blood through the veins is darker than that in the capillaries
• B. The colour of blood through the arteries is darker than that in the capillaries
• C. The colour of blood through the capillaries is darker than that in the arteries and veins.
• D. The colour of blood in the arteries, veins and capillaries are bright red due to the presence of haemoglobin.

Answer 1

The correct option is A

The colour of blood through the veins is darker than that in the capillaries

The conventional colour used to depict blood flowing through the veins is blue and for the blood flowing through the arteries is red. But this is not true. The blood flowing through the arteries and capilaries are rich in oxygen and are hence brightly coloured (Red). The deoxygenated blood that flows through the veins appear darker(red) in colour.