Fill in the correct missing words in the following paragraph by choosing the appropriate words from the provided words: Cellular respiration, in, out, photosynthesis and gaseous exchange. During (1) …, green plants use energy from the sun and inorganic molecules to manufacture starch. Consumers obtain the starch from producers and convert it to glucose. Glucose is then absorbed by cells of the body and gradually broken down during (2) … to release energy. During (3) ..., (4) ... occurs at the lungs whereby oxygen is breathed (5) ... and carbon dioxide is breathed (6) ....