Question

a.what is the function of red blood cells b.why are red blood cells red in colour​

Answer 1

Answer:

Red blood cells contain hemoglobin and are covered with a membrane composed of proteins and lipids. Hemoglobin—an iron-rich protein that gives blood its red color—enables red blood cells to transport oxygen and carbon dioxide. Red blood cells do not have nuclei, allowing for more room for hemoglobin.

Answer 2

Answer:

i) FUNCTIONS: Red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.

ii) The blood's red color is due to the spectral properties of the hemic iron ions in hemoglobin. Each hemoglobin molecule carries four heme groups; hemoglobin constitutes about a third of the total cell volume.