Clusters of RER and free ribosomes in neurons are called
A) neurofilaments.
B) neurofibrils.
C) perikaryon.
D) Nissl bodies.
E) microglia.
Answer: D
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Adding one gram of NaCl to one liter of water will lower the water concentration twice as much as adding one gram of glucose.
Answer the following statement true (T) or false (F)
Which of the following statements concerning the medullary vertical osmotic gradient is incorrect?
a. the loops of Henle of juxtamedullary nephrons establish a medullary vertical osmotic gradient by means of countercurrent multiplication. b. the vasa recta enable the medulla to be supplied with blood while conserving the medullary vertical osmotic gradient by means of countercurrent exchange. c. the countercurrent system establishes and maintains a medullary vertical osmotic gradient ranging from 300 to 1,200 mosm/liter. d. the collecting tubules of the juxtamedullary nephrons but not the cortical nephrons descend through the medullary vertical osmotic gradient before emptying into the renal pelvis. e. the medullary vertical osmotic gradient permits excretion of urine of differing concentrations by means of vasopressin-controlled, variable H2O reabsorption from the final tubular segments.
The glomerular filtrate is almost identical in composition to the plasma
Indicate whether the statement is true or false
The indirect method of ATP production involves coenzymes such as FAD and is referred to as ________ phosphorylation.
Fill in the blank(s) with the appropriate word(s).