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)

What field of science did harry hess study?

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism