<span>phospholipid bilayer, which is two layers of phospholipids back-to-back</span>
Capillaries.
<span>Exchange of oxygen and carbon dioxide in the lungs occurs between the capillaries and the alveoli.</span>
Because they contain less "built-in" water.
Explanation:
When two glucose molecules 'decide' to bond, they lose a molecule of water:
<span>2<span>C6</span><span>H12</span><span>O6</span>→<span>C12</span><span>H22</span><span>O11</span>+<span>H2</span>O</span>
And this happens at every connection between glucose molecules, so in a long chain a lot of water is lost. The water does not contribute anything to the energy content of the compound.
The atoms in a chemical reaction are responsible for the <span>energy. The atoms are the smallest particle which composed of electrons, protons, and neutrons that is why this is responsible for energy since they are needed in the chemical reaction.</span>
