Enzymes are proteins produced by the body to do a particular job. The pancreas produces amylase to break down the carbohydrates in food into simple sugars. The pancreas makes lipase to digest fats into fatty acids. Sugars and fatty acids can then be absorbed by the small intestine.
It is a gas. Answer: Helium can be in any state (solid,liquid or gas) depending on its pressure and temperature. At 2.5 MPa:
In general, the lighter a compound is (in terms of molecular weight), the more quickly it will evaporate. If you were to obtain liquid helium and then quickly remove it from its container, you would see it vanish quite quickly.