The total number of 02 molecules that can be carried by one red blood cell is about a: O One hundred (100) 02 molecules One thousand (1000) 02 molecules One million (1000,000) 02 molecules One billion (1000,000,000) 02 molecules

a) Hemoglobin accounts for 95% of the protein in red blood cells.  If you Google the number of hemoglobin molecules in a RBC, most sources state 250-270 million hemoglobin molecules.  If hemoglobin has a molecular weight of 67,000 Da, what is the concentration of hemoglobin in RBCs?  Show your work and show your units. Use dimensional analysis to have your final answer in moles per liter. B) The hemoglobin molecule is nearly spherical with a diameter of 55 Angstroms. You can look at the 3D structure of human hemoglobin on the RCSB PDB website.  Calculate the volume of a hemoglobin molecule, and can the number of hemoglobin molecules quoted in Question a actually fit into one red blood cell?

All of the following are true of white blood cells except O They are the component of blood that defends the body against disease. O There are many types of white blood cells that, together, account for 1 percent of circulating blood. Their numbers increase during infection or inflammation. Their numbers decrease during infection or inflammation.

Red Blood Cell Count (no./L) (with calculation) Average Red Blood Cell Count (no./L) (with calculation) Sample Length of blood cell layer (mm) Length of blood cell layer and plasma layer (mm) Hct % (with calculation) Average Hct % (with calculation) Sample x Duplicate I 5.28(10¹²/L) Duplicate I 20 51 5.325(10¹2/L) 39.22% Sample x Duplicate II 5.37(10¹2/L) X Duplicate II 25 49 51.02% (39.22% + 51.02%)/2 = 45.12% Sample Y Duplicate I 3.87(10¹2/L) Duplicate I 10 45 22.22% 3.835(10¹2/L) Sample Y Duplicate II 3.8(10¹2/L) Y Duplicate II 14 45 31.11% (22.22% + 31.11%)/2 = 26.665% Calculate the Mean cell volume (MCV) of sample x and y MCV (femtoliters, fl) = Hematocrit (volume fraction)/ Red blood cell count (10¹2/L) x 1000 Normal Range: 80-98 femtoliters, fl