I am pretty sure the answer is a
Carolus Linnaeus also known as Carl von Linné
Answer:
In an open system matter and energy can be transferred ·
In a closed system only energy can be exchanged ·
In an isolated system neither matter nor energy can be exchanged · The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system ·
As an open system the cell allows nutrients to enter the cell and waste products to exit the cell ·
The cell does this through the use of a semi-permeable membrane
Explanation:
Enzymes serve to speed up reactions by lowering the energy of activation, the amount of energy needed to begin a reaction.
