9. The production of the enzymes that catalyze the reactions of the urea cycle can increase or decrease according to the metabolic needs of the organism. High levels of these enzymes are associated with high-protein diets as well as starvation. Explain this paradox.

The paradox that is carried out with the consumption of high protein diets. it is said that the individuals that consume high protein diet uses amino acid as a metabolic fuel source.

The amino acid groups are disposed as urea, which increases the flux through the urea cycle. In case of starvation when the carbohydrates of the body is completely consumed only protein is left in the body.

The high protein diet will increase the demand for the enzyme as the it will result ending up in the urea cycle.

So, more enzymes will be required for the urea cycle to take place.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.