The amount of oxygen unloaded from hemoglobin at the tissue level increases when
a. PCO2 in the tissue increases.
b. the concentration of DPG in the red blood cells increases.
c. the concentration of DPG in the red blood cells decreases.
d. both (a) and (b) above.
e. both (a) and (c) above.
D
You might also like to view...
If someone spills very hot coffee (200 0F) on their skin, they will likely perceive much pain. Which of the following receptor types is causing this sensation?
A) nociceptors B) chemoreceptors C) mechanoreceptors D) thermoreceptors
Actin
a. does not perform a power stroke during muscle contraction b. contains a globular head that forms a cross bridge between the thick and thin filaments c. is not found within A bands d. is inhibited by Ca2+ e. does not attach to the Z lines
Which among the following statements is true regarding sexual health?
A. It is a purely social movement. B. It includes only sexual physical health. C. It involves positive sexual relationships. D. Its prime focus is sexual disease.
Which of the following characterizes Duchenne muscular dystrophy?
A. Muscles atrophy due to a loss of fat and scar tissue. B. There is a defective gene for the protein called dystrophin. C. There is a defective gene for the protein called duchennase. D. Muscles atrophy due to lack of response to acetylcholine. E. More females are affected than males.