The osmolarity of 50 mM calcium chloride (CaCl_2), assuming complete dissociatio

Question

The osmolarity of 50 mM calcium chloride (CaCl_2), assuming complete dissociation is 50 mOsm 100 mOsm 150 mOsm 200 mOsm 300 mOsm The resting metabolic rate is the amount of heat energy: that will raise the temperature of 1g of water 1 deg that will raise the 1ka of water 1 deg C that the body must produce just to stay alive none of the above Which of the following would make the oxygen-hemoglobin curve shift to the right? increased H+ concentration increased pH decreased temperature decreased CO_2 None of the answers are correct. A molecule that blocks the activity of carbonic anhydrase would interfere with oxygen binding to hemoglobin. cause an decrease in blood pH. decrease the amount of bicarbonate formed in the blood. decrease the amount of carbon dioxide dissolved in the plasma. All of the answers are correct. Compared to oxygenated blood, fully deoxygenated blood has a higher affinity for CO_2. a lower affinity for CO_2 a higher affinity for bicarbonate. no difference. a lower affinity for CO_2. The P50 is the partial pressure of O_2 at which hemoglobin is 50% saturated with O_2. Is the P50 for hemoglobin having a greater affinity for oxygen higher or lower? Higher Lower The Same

Explanation / Answer

(33)C.150 mM

Since CaCl2 ionizes into 3 ions in solution its osmolarity factor is 3. Therefore the osmolarity of CaCl2 is 50mM x 3 = 150mM

(34)d. None of the above

(35)a. Increased H+ ion concentration

Decreased pH causes rightward shift

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