Which of the following cells are arranged in layers, or strata, in the epidermis?
A) keratinocyte B) Merkel cell
C) melanocyte D) dendritic (Langerhans) cell
Answer: A
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Vasopressin quickly increases the reabsorption of water by the collecting duct. This happens because
A) The cell transcribes and translates more aquaporins to be inserted in the membrane. B) Preformed aquaporins are translocated to the membrane. C) Phosphorylation of existing aquaporins increase their permeability. D) All of the above are possible.
At of age of 6 months, Caleb was diagnosed with Tay-Sachs disease. As his primary care physician, what would you tell his parents about this disease?
What will be an ideal response
Briefly describe the difference between tonic and phasic receptors, and illustrate this difference by sketching graphs showing any type of stimulus (as a rectangular wave), the receptor potentials generated by each type of receptor, and the resulting action potentials in the neurons that respond to each type of receptor. You do not need to put numbers on your axes; rather you are to demonstrate
you understand the relative differences in the responses. What will be an ideal response?
The primary energy source for the body during the post-absorptive state is glucose
Indicate whether the statement is true or false