Question

1. Haemoglobin of blood transports: [ ] A) CO, only B) O, only D) Both Co, and o C) Nitrogen only​

Answer 1

Answer:

both b and c

Explanation:

For purposes of discussing oxygen transport by the blood, we will consider blood to be composed of two phases: plasma and red blood cells (RBCs). Oxygen is carried in the blood in two forms: (1) dissolved in plasma and RBC water (about 2% of the total) and (2) reversibly bound to hemoglobin (about 98% of the total). At physiological PO2, only a small amount of oxygen is dissolved in plasma since oxygen has such a low solubility. At elevated PO2 (breathing 100 % oxygen or during hyperbaric oxygenation), however, the physically dissolved form of oxygen can become significant. Henry's law states that the amount of oxygen dissolved in plasma is directly proportional to PO2: [O2] = α PO2, where α = 0.003 ml O2 (100 ml plasma)−1 mm Hg−1. Thus, at a PO2 of 100 mm Hg (a typical value for arterial blood), 100 ml of plasma contains 0.3 ml O2 (or 0.3 vol%).

Some of the carbon dioxide is transported dissolved in the plasma. Some carbon dioxide is transported as carbaminohemoglobin. However, most carbon dioxide is transported as bicarbonate. As blood flows through the tissues, carbon dioxide diffuses into red blood cells, where it is converted into bicarbonate.

Answer 2

Answer:

C) Both CO and O.

Explanation:

This is the required answer