Once the organism dies the amount of carbon-14 decreases exponentially.
The exponential, radioactive decay of carbon 14 is used to estimate the death dates of organic material.
Living organisms have approximately the same ratio of C12 to C14 in their tissues. Once the organism dies C14 decays into nitrogen 14. Decay of C14 to nitrogen 14 changes the ratio of C12 to C14. The ratio of C12 to C14 in dead material can be compared to the ratio when the organism was alive to estimate the date of its death. Radiocarbon dating can be used on different samples such as bone, cloth, wood and plant fibers.
Answer:
-During citric acid cycle or Krebs cycle, radioactive carbon will be first appear in citric acid
Explanation:
During cellular respiration, glucose is first converted into pyruvate molecules by the process of glycolysis. These pyruvate molecules go for oxidative decarboxylation, during which acetyl co-enzyme A (acetyl CoA) is formed along with removal of carbon dioxide.
The acetyl co-enzyme enters to the next step in cellular respiration or citric acid cycle or Krebs cycle. The first step of citric acid cycle is formation of citric acid by joining of acetyl CoA and oxaloacetate.
As citric acid is first molecule formed during citric acid cycle, radioactive carbon would be first appear in citric acid.
Greater light intensity would mean a faster rate of photosynthesis in plants. photosynthesis takes in carbon dioxide and water to produce glucose and oxygen. therefore, a greater light intensity would mean faster oxygen production
<span>Fifty percent of the gases that make up the atmosphere are found below 5.6 kilometers in the atmosphere. As height increases the density of gasses is lowered until you finally exit the atmosphere and enter a vacuumous space.</span>
