Acomatose infant is brought to the er. in the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. urine orotic acid and uracil were both greater than normal. a defect of which of the following enzymes is the most likely diagnosisa. arginaseb. argininosuccinate lyasec. carbamoyl phosphate synthetase 1 (ammonia substrate)d. carbamoyl phosphate synthetase 2 (glutamine substrate)e. ornithine transcarbamoylase

oxidation

explanation:

answer

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

answer///multiple alleles;