The outer boundary of a human cell is the __________.
A)plasma membrane
B)cell wall
C)Cytoskeleton
D)nuclear membrane
A)plasma membrane
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_____ is an autoimmune joint disorder. Select one:
a. OA b. GA c. RA d. SLE
Actin
a. does not perform a power stroke during muscle contraction b. contains a globular head that forms a cross bridge between the thick and thin filaments c. is not found within A bands d. is inhibited by Ca2+ e. does not attach to the Z lines
Treatment of a hormone's target cell with a phosphodiesterase inhibitor will result in ________.
A. immediate cessation of cell response to the hormone B. prolonged activity of the cell C. inability of the hormone to bind to its receptor D. irreversible binding of the hormone to its receptor
Which tarsal bone articulates with the anterior surface of the talus?
A. Calcaneus B. Medial cuneiform C. Metatarsal I D. Cuboid E. Navicular