Pernicious anemia is caused by the bone marrow failing to produce enough RBCs, even though all ingredients needed for erythropoiesis are available
a. True
b. False
Indicate whether the statement is true or false
False
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Which receptors adapt most slowly?
A) smell receptors B) pressure receptors C) nociceptors D) touch receptors
Which of the following causes the ribosome to attach to the rough endoplasmic reticulum?
A)An ER signal sequence is present in the protein being synthesized. B)Sugar groups on the newly forming protein interact with pores on the ER surface. C)Most ribosomes remain bound to the ER, they do not attach and detach from its surface. D)Once enclosed in a transport vesicle, a ribosome complex enters a cistern of the ER.
Define compliance and resistance
A) Compliance is the ease with which the lungs expand and recoil. Resistance is an indication of how much force is required to inflate or deflate the lungs. B) Compliance is the ease with which the breathing muscles and rib cage expand and recoil. Resistance is the limitation of expansion placed on the lungs by the size of the rib cage. C) Compliance is an indication of how much force is required to inflate or deflate the lungs.Resistance is the ease with which the lungs expand and recoil. D) Compliance is the limitation of expansion placed on the lungs by the size of the rib cage.Resistance is the ease with which the breathing muscles and rib cage expand and recoil. E) Compliance is the ability of the lungs to expand. Resistance is the ability of the lungs to recoil.
Why does the near point of accommodation decrease as a person ages?
A) The lens becomes clouded with age, and light doesn't pass through as well. B) The lens becomes less elastic with age and doesn't change shape as easily. C) The lens shape changes with age causing the focal point to shift. D) The lens becomes more brittle with age causing light to refract erratically.