The spear is 4620 years old.
N=N0e^-kt
N0 = initial amount of C-14 (at time t = 0)
N = amount of C-14 at time t
t = time, in years
k = 0.0001
N/N0 = e^-kt
we know N/N0 is 0.63
so we have:
0.63 = e^-kt
we can take the ln of both sides, leaving us with:
ln0.63 = -kt
t = ln0.63 / -(0.0001)
t = 4620 years
hope this helps with your thing!
-keynerd23
Answer:
Glucose levels within the cell would decrease
Explanation:
Sodium glucose simulators are proteins that participate in secondary active transport within epithelial cells. This type of protein can be located in the cell membrane and has the function of transporting glucose and sodium into cells simultaneously. These proteins are directly dependent on Na+/K+ pumps, as they use the free energy released by them to efficiently transport sodium and glucose. For this reason, we can conclude that if a plant's chemicals inhibit the Na+/K+ pump, glucose and sodium concentrations will decrease because the proteins responsible for their transport into the cell will be weakened by a lack of energy.
Answer:
What disaster? I can explain it if there is a pic or something
Answer:
reduce NAD+ and FAD.
Explanation:
In the Krebs cycle the carbons donated by the acetyl group are oxidized to CO2 and the electrons pass to the electron transporters. As in glycolysis, a specific enzyme is involved in each step. Coenzyme A is the link between the oxidation of pyruvic acid and the Krebs cycle. In the course of these steps, some of the energy released by the oxidation of the CH and CC bonds is used to convert ADP to ATP (one molecule per cycle), and part is <u>used to produce NADH and H + from NAD</u> (three molecules per cycle). In addition, <u>a fraction of the energy is used to reduce a second electron transporter, the FAD</u>. For each turn of the cycle, a molecule of FADH2 is formed from FAD. O2 is not required for the Krebs cycle: <u>electrons and protons removed in carbon oxidation are accepted by NAD + and FAD</u>. It takes two turns of the cycle to complete the oxidation of a glucose molecule. Thus, the total energy efficiency of the <u>Krebs cycle for one glucose molecule is two molecules of ATP, six molecules of NADH and two molecules of FADH2.
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