The figure below shows how single-celled eukaryotes called Dictyostelium sense a chemical in their environment (they use the receptor at the top of the figure) and modify their cellular structure to be able to crawl towards that chemical (aka, chemotaxis). Using the right side of the figure, what type of actin structure is formed after Rac1 has been activated? How do you know?

Which abnormal variant of hemoglobin has 1 of the 146 amino acids in the beta chain altered?  

What is the equation used to calculate the difference in oxygen content between arterial and mixed venous blood (C(a-v)02)? What is the normal value for C(a-v)02?

In some clinical situations, oxygen consumption is constant over short periods; thus making cardiac output and the C(a-v)02 inversely proportional.

What is the equation used to calculate the volume of oxygen in the dissolved state in the blood?

What is the equation for calculating total oxygen transport?

C(a-v)02 divided by ___________ is called oxygen extraction ratio or the oxygen utilization coefficient.

Calculate the oxygen content of mixed venous blood given the following: Pv02= 45 mm Hg Hb= 15 g% Sv02= 73%

Calculate the average amount of desaturated hemoglobin given the following data: Hb= 20g% Sa02= 80% Sv02= 60%

What is the equation used to calculate the oxygen content of mixed venous blood?