1.Small lipid molecules are in high concentration outside a cell. They slowly cross the membrance into the cell.
2. Ions are in low concentration outside a cell they move rapidly into the cell via protein molecules.
Stored energy
Solar energy.
The term reflex or phrase reflex action describes a quick spontaneous automatic response to a stimulus that does not involve thinking about it. It is controlled through the brain, but does not require thought.
nonrenewable energy
Energy
hypertonic
nonrenewable energy
nonrenewable energy
Activation energy describes the energy that is required to get chemical reactions started.
Activation energy describes the energy that is required to get chemical reactions started.
Action potential
Activation energy describes the energy that is required to get chemical reactions started.