In addition to the supercharged HEMI V-8 in the Challenger SRT Hellcat, the new 2015 Dodge Challenger SRT model also gets a power boost with upgrades to the 392 HEMI V-8. Horsepower climbs to 485 from 470, while peak torque jumps to 475 lb.-ft. from 470 lb.-ft.
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates. (An enzyme is a protein that can catalyze certain biochemical reactions).hemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates. (An enzyme is a protein that can catalyze certain biochemical reactions).
You have three pairs of saliva glands in your mouth, and they each produce a different kind of saliva. The body always knows how much saliva to produce, and what kind. Thatâs why your saliva glands will produce much more saliva when you eat a dry cracker than when you eat a juicy piece of fruit!The largest saliva glands in the mouth produce more than 25,000 quarts of saliva in an average lifetime!aliva also contains an enzyme called ptyalin, which digests food the same way that the digestive juices in your stomach do. This enzyme changes some of the starch in food into sugar, giving the stomach a âhead startâ in digesting the food.