Plz me 20 points
photosynthesis and cellular respiration are often described in two ways: (1) they ae chemically opposite; and (2) they have a relationship to each other. explain what these two statments mean. be sure to include the specific substance used and released by each process.

In Photosynthesis carbon dioxide and energy is consumed to give sugar and Oxygen.  while in Respiration oxygen and sugar is consumed to give energy and carbon dioxide is produced.  Hence the two are opposite of each other.

Now, since you need oxygen to respire there must be a constant supply of oxygen and plants are the source of oxygen since they produce oxygen due to photosynthesis, similarly plants need oxygen to do photosynthesis which is produced by respiration.  Hence they both are dependent on each other.

Explanation:

They are chemically opposite in that the reactants of one are the products of the other. One could not exist without the other to supply the materials.