Questions:
1. Choose the correct answer and explain why the other ones are incorrect.
Effect of Substrate Concentration
on the Rate of Enzyme Action
Rate of Reaction
0 0.1 0.2 0.3 0.4 0.5
Substrate Concentration (%)
The graph below shows the effect of substrate concentration on the action of enzyme X. This
enzyme is functioning at its optimal temperature, 36°C, and at its optimal pH, 5.5.
When the substrate concentration increases from 0.4% to 0.5%, the rate of the reaction
A. decreases
B. increases
C. remains the same
D. increases, then decreases
of the enzymatic action shown below. (A-E)

The optimal temperature this enzyme functions is at 35 degrees C, as the optimal pH this enzyme functions is at 6. You can easily tell this due to the highest point on the graph (highest rate of reaction).

the answer to your question is b

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."