Question

4. When we exhale we expire CO2 as a byproduct of our cellular respiration. What are the specific enzymes that are responsible for catalyzing the production of CO2 in cellular metabolism (explain clearly for full points) (3pts) 5. What is the osmolarity of a solution containing 40mM NaCl, 82 mM KCL, and 3 mM Ca CL2? Show your calculations (2pts) What would happen to human blood cells put in the solution above? Explain your answer (3pts)

Answer 1

4) The enzyme which is responsible for catalyzing the CO2 production at cellular level is Carbonic Anhydrase.

This enzyme accelerate the decomposition of Carbonic acid into CO2 and H2O in the lungs, and Combination of CO2 and H2O at tissue level.

5) Osmolarity of solution is

= 2*40 + 2*82 + 3*3

=80+164+9

=253 mM/L

If the cells are placed in above solution

There will occur shrinkage of the cell due to loss of water from red cell to hypertonic solution