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Grade 99 grade science

give one example of a contractile cell

Profile image of ???????? ??????
11 Years agoGrade 9
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Profile image of Saurabh Kumar
11 Years ago
A contractile cell is a cell that contracts. The best example is a muscle cell. When stimulated, a muscle cells contracts from an elongated shape to a more compact one. In order to do this, a large amount of intracellular calcium is required to be tightly regulated. The organelle that does this is the sarcoplasmic reticulum, a specialized kind of endoplasmic reticulum that stores and releases calcium in response to contractile signals from the muscle cell.
Profile image of A M S ARUN KRISHNA
11 Years ago
A contractile cell is simply any cell that is able to move contract. 
example : muscular cells