Erwinia amylovora causes fire blight disease in  apple and p…

Erwinia amylovora causes fire blight disease in  apple and pear trees. You analyze the cell wall of Erwinia amylovora and determine that peptidoglycans are present. You then stain it with gram stain, and discover that it does not take the stain well, turning only a light pink. Based upon this, you determine that it is a:

In a test tube – you add water, starch (a polymer of glucose…

In a test tube – you add water, starch (a polymer of glucose), and a digestive enzyme that will break the starch down into its individual glucose monomers.  As the enzyme digests the starch, the number of water molecules in the test tube __________________.

Bacteria in the genus Rhodobacter are purple bacteria that u…

Bacteria in the genus Rhodobacter are purple bacteria that usually get their energy from sunlight and carbon from organic molecules. If there is no sunlight, the bacterium can get energy from organic molecules.  Recently, bioengineers have begun to use some species of Rhodobacter to reduce the offensive smell from hog farms by encouraging the bacterium to grow in the manure ponds.  As the bacteria grow, they consume the organic molecules that are responsible for the offensive odor. Which of the following terms can accurately be used to describe this bacterium and its use? Select all that apply.