Even in the absence of sperm, metabolic activity in an egg can be artificially activated by injection of calcium ions into the cytosol.
What is Cytosol?
- When H. A. Lardy first used the term "cytosol" in 1965.
- It originally referred to the liquid that was created by rupturing cells into smaller pieces and pelting all of the insoluble parts using ultracentrifugation.
- Typically referred to as a cytoplasmic fraction, such a soluble cell extract differs from the soluble portion of the cytoplasm of the cell.
- Nowadays, the term "cytosol" is used to describe the liquid portion of the cytoplasm in a whole cell.
- The term "aqueous cytoplasm" has been used to characterize the liquid components of living cells' cytoplasm due to the potential for confusion between the terms "cytosol" and "soluble part of the cytoplasm" in whole cells and cell extracts.
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