Enzymes reduce the activation energy needed for chemical reaction to occur. Enzymes are involved in all metabolic reaction that sustain life. Examples of these reaction are, digestion, synthesis, respiration,and photosynthesis. Review the power point presentation to see how enzymes work.
autotrophic organisms carry out the process of photosynthesis. Plants (leaves) and algae have adaptations (have chlorophyll),that absorb the sun energy. The products of photosynthesis are glucose and oxygen.
The processes that help all living things obtain the energy they need are photosynthesis and respiration. photosynthesis capture the sun light and use it to combine the inorganic raw materials (carbon dioxide and water) to form ( the organic compound) glucose and oxygen.the energy that is stored in the chemical bonds of glucose is released by the process of cellular respiration.The energy is released and again stored in special molecules called ATP, the form of energy used by all organisms.
A link to Wikipedia is provided for more information. Review the image that show the connection between photosynthesis and cellular respiration.
Don’t forget to review the power point presentation below for more info