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Discussion Post
Question I. For this discussion I would like for you to explain the difference between an enzyme, an active site, and a substrate. Choose a specific enzyme such as lactase and the mode of action of the enzyme. There are several to choose from so please do not choose lactase. In addition, provide details describing what happens when this enzyme is faulty or is not working properly.
Question II. Briefly describe the relationship between photosynthesis and respiration in terms of the reactants and products of each chemical reaction. Hypothesize why virtually every theory of mass extinctions on the planet such as the asteroid impact theory involve decreased sunlight as the source. In your explanation, briefly explain the asteroid impact theory. Give some thought to your study in chapter 1 of the levels of organization and how the elimination of plants would affect virtually every ecosystem on the planet, our biosphere.
Northern Virginia Community College - Did you see a shift in the percentage of light and dark moths in the dark background? If so, which was more abundant?
Identify the six toxicological principles that are applied in evaluating a poisoned individual. Give an example of two of these principles.
If a woman's dad was colorblind and her husband has normal vision, what is the chance of their having a colorblind daughter?
When we think of large animals, elephants come to mind. Considerably larger, however, are the whales. The orca, for example, weighs some 8 tons
What is the probability that an individual haploid resulting from the meiotic division will have a complete parental set of centromeres (that is, a set all from one parent or all from the other parent)?
What is the 'carrier' which picks up the hydrogen stripped from the pyruvates in the Krebs cycle? What is the original source of these H's? What is their ultimate destination? Give two other names for the Krebs Cycle.
What are the health problems or issues currently impacting your community? How do you plan to assist in prevention and intervention programs of your community.
Write 5 page paper on topic in microbiology such as ecoli or some kind of bacteria
1. Describe the three classes of carcinogens and their sub classes; describe the role each plays in the cancer process and give chemical examples.
Can you help me derive the equations necessary to compute Km and Vmax with a given observed velocity at two substrate concentrations. What is Vmax and Km if you know Substrate1 and Substrate2 and the matching Vobs1 and Vobs2.
List the short-term effects of the STD. List the long-term effects. What is the mode of transmission of the STD? Are there multiple modes of transmission?
In the cell, the conversion of citrate to isocitrate will definitely proceedspontaneously under the appropriate conditions. Provide a brief description of the reaction conditions that allow for this possibility.
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