1. which of the following would differ if you compared the same reaction taking place with and without an enzyme? (1 point)
a) the chemical energy of the reactants
b) the chemical energy of the products
c) the energy required to start the reaction
d) the overall energy of the reaction

2. which of the following would occur if cells did not have enzymes? (1 point)
a) cells would not have any chemical reactions taking place.
b) cells would have some chemical reactions, but not enough to support life processes.
c) reactions in cells would be too slow to sustain life.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

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