After contraction has occurred, the Ca2+ are
A. returned to the sarcolemma.
B. secreted by the Golgi apparatus to the outside of the cell.
C. destroyed by cholinesterase.
D. chemically bound to the cross bridges.
E. released from troponin.
Answer: E
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Peroxisomes
A) both generate and break down hydrogen peroxide. B) pull the chromosomes toward the poles of a dividing cell. C) manufacture proteins. D) manufacture most of a cell's ATP. E) contain the genetic information of a cell.
What muscles are the most important in typing?
What will be an ideal response?
The gastrocnemius muscle is innervated by the __________.
A. plantar nerve B. ulnar nerve C. fibular nerve D. tibial nerve
Cells that secrete the organic components of the bone matrix are called
A) osteocytes. B) osteoprogenitor cells. C) osteoblasts. D) osteoclasts. E) chondrocytes.