It's the nucleus since it contains all the information of the cell. The ER only "packages" and send the protein to the Golgi Body.
The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction. An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules.
Water<span> boils when the molecules are able to overcome the vapor </span>pressure<span> of the surrounding air to move from the liquid phase to the gas phase.</span>
The nervous system<span> is like a highway along which </span>your <span>brain sends and receives information about what is happening in the body and around it. This highway is made up of billions of nerve cells, or neurons (say new-rons) which join together to make </span>nerves<span>. A nerve is a fibre that sends impulses through the body.</span>
