The answer is b hope it’s right
Answer: Tyrosinase, an oxidase that is the rate-limiting enzyme for controlling the production of melanins is mainly involved in two distinct reactions of melanin synthesis: (1) the hydroxylation of a monophenol, and (2) the conversion of an o-diphenol to the corresponding o-quinone. o-quinone undergoes several reactions to... Tyrosinase. An enzyme involved with melanin synthesis, which gives the skin its color and also involved with browning of fruits, tubers, and fungi that have been damaged.
Tyrosinase is responsible for the first step in melanin production. It converts a protein building block (amino acid) called tyrosine to another compound called dopaquinone.
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Un-paraphrased (WILL BE DETECTED BY PLAGIRISM CHECKERS):
By the late 17th and early 18th centuries, the digestion of meat by stomach secretions and the conversion of starch to sugars by plant extracts and saliva were known but the mechanisms by which these occurred had not been identified. French chemist Anselme Payen was the first to discover an enzyme, diastase, in 1833.
Paraphrased (YOU ARE GOOD TO USE THIS, YOU WONT BE PLAGIRISED)
The digestion of meat by stomach secretions and the conversion of starch to sugars by plant extracts and saliva were known by the late 17th and early 18th centuries, but the mechanisms by which these occurred had not been identified. Anselme Payen, a French chemist, was the first to discover an enzyme, diastase, in 1833.
Explanation:
a barometer is one of the most common instrument used for weather forecasting and measuring tornadoes.