cell culture
The principal fluid within a cell is called the cytoplasm, and it contains ions and other building blocks for cell processes.
cell membrance
The Nucleus is like a school principal because it controls what goes on inside of the cell. The nucleus is the brain, and the cell is the body, in a sense or The Nucleus is the school Principal because its the brain of the cell and controls every thing that goes on in the cell
keratinocytes
Glucose and Glutamine .
waste, nutrient, water
Cell Culture
Passive transport is not an example of essential nutrients for the cell.
to allow nutrient to enter for sustaining the cell; or to prevent bugs to enter
- Plasma/Cell Membrane - Cytoplasm/cytosol - Nucleus and Cell Organelles - Cell inclusions (vacuoles, etc.)
Not if they are not on college property ! Outside the college the principal has no jurisdiction !