Into which area does the descending segment of the loop of Henle extend?
a. into the renal pelvis
b. into the renal medulla
c. into the Bowman's capsule
d. into the collecting ducts
Answer: b. into the renal medulla
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Two “magic” solutions are sold by a research supply company. “Magic Solution A” promises to extract all proteins, including integral membrane proteins, from the plasma membrane. “Magic Solution B” promises to simply extract all peripherally associated membrane proteins. What is the likely composition of “Magic Solution A” and “Magic Solution B”?
A. "Solution A" and "Solution B" both contain high salt buffers that disrupt hydrogen bonds and ionic interactions B. "Solution A" and "Solution B" both include membrane solubilizing detergent(s) C. "Solution A" is a membrane solubilizing detergent, "Solution B" is a high salt buffer that disrupts hydrogen bonds and ionic interactions D. "Solution A" is a high salt buffer that disrupts hydrogen bonds and ionic interactions, "Solution B" is a membrane solubilizing detergent
Given this information from one element in the periodic table of elements, the number of neutrons and protons is
A. 7, which is also the atomic mass.
B. unable to be determined with the information provided.
C. 14, which is also the atomic mass.
D. 14, which is also the atomic number.
E. 7, which is also the atomic number.
Which of the following is considered an accessory gland in the digestive system?
A. esophagus B. stomach C. cecum D. pharynx E. pancreas
A single muscle cell is referred to as a _____.
A. myofibril B. muscle fiber C. muscle neurons D. sarcolemma E. sarcomere