Question

There are many far-reaching consequences of global climate change. One possible consequence is the increase in the temperature of water. Some organisms are not able to regulate their internal temperatures. Think about the effect that an increase in stream/lake/ocean temperature would have on enzymatic reactions in organisms that cannot regulate their internal temperatures. Salmon and trout are cold-water fishes that may be very susceptible to the consequences of global climate change. They thrive in cold streams with temperatures that range between 50 and 65 F. In many areas, the fish are already living at the upper end of their thermal range, so even modest warming could render streams uninhabitable.

a. What is the optimal temperature for most enzymes in your body?

b. What are the impacts (in terms of enzymatic reactions) on cold-water fishes from living in a temperature that is a few degrees warmer than it should be?

Answer 1

Enzymes are proteins which controls chemical reactions and acts as catalyst.

A) the optimal temperature for most enzymes in our bodies is 37.5 degree Celsius or 98.6 degree fahrenheit

B) enzymes are held together by hydrogen bonds. When temperature rises for every 10 degree Celsius then enzymatic activity double. So when the temperature rises from the normal living temperature the hydrogen bonds which held together the enzymes will break this result in the protein breakdown, denature and the metabolic function will be reduced.