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).
The teeth break food into small pieces. The lips. and tongue position food so that you can chew. When food is in your. mouth, salivary glands in your mouth release saliva, which softens the. food and begins chemical digestion. The tongue pushes the food to. the back of the mouth and down the throat while swallowing.