Which of the following statements is FALSE regarding a leftward shift in the hemoglobin-oxygen dissociation curve?
A) Hemoglobin is more saturated at a given PO2.
B) Affinity for oxygen is increased.
C) Oxygen loading onto the hemoglobin is increased.
D) It can be caused by an increase in PCO2.
E) It can be caused by an increase in blood pH.
Answer: D) It can be caused by an increase in PCO2.
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A. are harmless saprophytes. B. sometimes divide to form characteristic club-shaped cells. C. form helical-shaped cells. D. form elongated rod-shaped cells.
Meiosis may pause at which point in the cycle?
a. after DNA is replicated in S phase but before meiosis I begins b. after meiosis I is complete c. after prophase II d. before telophase II e. after prophase I
Assuming resting conditions at sea level, what is the partial pressure of oxygen in pulmonary veins?
A) 160 mm Hg B) 46 mm Hg C) 80 mm Hg D) 40 mm Hg E) 100 mm Hg
You find a protist that has a single flagellum surrounded by a collar of microvilli. You correctly conclude that this
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