Answer:
Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA. Molecular similarities show that organisms are related. In other words, they are descendants of a common ancestor in the past.
Explanation:
Answer:
D. Phosphorylation by ATP, which turns the complex off, and dephosphorylation, which turns the complex on.
Explanation:
The pyruvate dehydrogenase complex (PDH) is responsible for the conversion of pyruvate to acetylCoA, the fuel for the citric acid cycle.
The regulation of the activity of PDH is allosterically by the products of the reaction which it catalyses. These products are ATP, acetylCoA and NADH. When their is sufficient fuel available for the needs of the cells in the form of ATP, the complex is turned off by phosphorylation of one of the two subunits of E1 (pyruvate dehydrogenase). This phosphorylation inactivates E1. When the concentration of ATP declines, a specific phosphatase removes the phosphoryl group from E1, thereby activating the complex again.
Answer:
<u>Part -A:</u>
Sulfur released is .
<u>Part-B:</u>
released of per EPA norms is .
Explanation:
From the given,
The output = 1100 Mw
Efficiency = η = 0.4
Substitute the values in the following
Input = Output / η
Let's converts between joules to BTU.
1 BTU = 1056 J
<u>Part-A;</u>
But it has 2% sulfur
The mass of sulfur released
Therefore, released sulfur is .
<u>Part -B;</u>
One pound of sulfur produce two pounds of sulfur dioxide
Initial amount of produced sulfur =
Assuming we added a 80% efficiency then,
Released sulfur dioxide =
Energy produced in an hour =
Therefore, released of per EPA norms is .