Unlike chemical synapses, electrical synapses ________.
A. provide adjacent cells with the ability to act in a coordinated fashion
B. allow communication between cells with larger distances between the membranes
C. are the method of connection between adjacent neurons
D. are not dependent on the movement of ions across a plasma membrane
Answer: A
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Intermediate filaments
a. comprised mitotic spindles. b. are important in cell regions subject to mechanical stress. c. comprise cilia. d. comprise flagella. e. form the basal bodies.
Which of the choices below is not a method by which the cells of the renal tubules can raise blood pH?
A) by secreting hydrogen ions into the filtrate B) by reabsorbing filtered bicarbonate ions C) by producing new bicarbonate ions D) by secreting sodium ions
The absorptive state is regulated mainly by insulin, whereas the postabsorptive state is regulated by multiple hormones
Indicate whether the statement is true or false
Which is NOT a function of the Golgi apparatus?
A. sorting of proteins destined for various locations in the cell B. modifying proteins destined for secretion C. packaging enzymes destined for lysosomes D. addition of carbohydrate groups to proteins E. transcribing a signal sequence onto proteins destined for secretion