1. Do you think erythropoietin levels in athletes at low altitude are lower, higher, or the same after training at a high altitude for 2 months? 2. Calculate the average ml of oxygen molecules in 100 ml blood in the athletes at low altitude and then in athletes in high altitude while training at high altitude. Use the following information: 1.39 ml of Oxygen per gram of hemoglobin.
3. Do athletes training at high altitudes have more or less oxygen molecules per ml of blood then athletes training at low altitudes? Explain why this difference gives athletes who train at high altitudes an advantage over athletes who train only at low altitudes.
Results
Table: Effect of Altitude on Hct and Hb
Low Altitude
Hb Length of Whole Length of
Blood Column Packed RBC Hematocrit Hb
(nm)(g/100 Column (mm) % (g/100 blood)
Subject 1 52 21 40 14.5
Subject 2 49 20 41 14.4
Subject 3 48 21 44 14.6
Average 4 50 21 42 14.5
High Altitude
Hb Length of Whole Length of
Blood Column Packed RBC Hematocrit Hb
(nm)(g/100 Column (mm) % (g/100 blood)
Subject 1 49 22 45 17.4
Subject 2 50 22 44 17.3
Subject 3 50 22 44 17.3
Subject 4 50 22 44 17.3

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.