Place the labels to describe the role of the lungs and blood in transporting oxygen and carbon dioxide in the body

The correct labeling is shown in the picture below.

Oxygen from outside the body reaches the alveolar site in the lungs through inhaling.

At alveolar site, oxygen diffuses into the hemoglobin of the red blood cells (RBC).

RBC then carry the oxygen in the dissolved form to all cells and tissues of the body where it is used for cellular respiration.

Cellular respiration produces carbon dioxide as the byproduct which is also carried in the dissolved form with the help of RBC.

The RBCs take carbon dioxide to the alveolar site where it is exchanged and is excreted out as a part of exhaled air.

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.