A. Most enzymes are proteins.
Answer:
aluminum: bauxite and corundum
Copper: chalcopyrite
Tin: Cassiterite
Explanation:
Most enzymes' optimum pH is neutral or close to neutral, like amylase found in saliva, which has an optimal pH = 6.8. Some enzymes prefer a more drastic pH, like pepsin, which can have an optimum pH of 1.7 to 2. Sometimes enzyme pH optima depends on where the enzyme is found.
Hey In addition to providing fresh food, growing vegetables in space has other benefits, both atmospheric and psychological. Plants remove harmful carbon dioxide from the air and replace it with needed oxygen.
