Which of the following correctly describes the role of the mouth in the digestive system? The mouth acts like a muscular bag by churning the food and producing enzymes that aid in chemical digestion.

The mouth produces all of the enzymes needed for digestion and these enzymes are swallowed, which moves them through the digestive tract.

The mouth begins the process of digestion by mechanically breaking food into smaller pieces.

The mouth performs the peristalsis that pushes food through the rest of the digestive system.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

What is the polyatamic ion of thiosulfate