Answer:
metabolic pathway
Explanation:
A metabolic pathway is a chain of biochemical reactions in a cell that yield intermediate products (known as metabolites) before the final product is achieved. Usually the product of one enzyme in the chain is the substrate of the next enzyme. Examples of metabolic pathways are Glycolysis and Krebs cycles. The illustration below (attached) shows the enzymes involved in Glycolysis metabolic pathway.
It would validate the law of conversation of energy, because energy was not created nor destroyed but transferred from the fish to the shark.
Answer:
Radiolabeled carbon atom in CO2
Explanation:
Photosynthesis is the process by which green plants fix the atmospheric CO2 into glucose. The process includes carbon fixation during which RuBisCo enzyme catalyzes the reaction of CO2 and a five-carbon compound called RuBP to form 3-phosphoglycerate (3-PGA). The 3-PGA enters the reduction phase of the Calvin cycle wherein it is reduced into glyceraldehyde 3-phosphate. Two molecules of glyceraldehyde 3-phosphate make one molecule of glucose.
To test the hypothesis that glyceraldehyde 3-phosphate from photosynthesis is used by plants to synthesize lipids, radiolabeled CO2 must be used. The radiolabeled carbon atom in the CO2 would be fixed in the form of glyceraldehyde 3-phosphate. If the plant uses glyceraldehyde 3-phosphate as a precursor for lipid synthesis, the synthesized lipid molecules would carry the radiolabeled carbon atom.
