1 The diagram shows the apparatus used to demonstrate the action of amylase on starch.
Viking tubing is a material that allows small molecules to pass through it, but not starch.
(a) Circle two of the words in the box that can be used to describe amylase.

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above