For the following 4 questions, choose the color that is associated with each stage in the Gram stain provided. A choice can be used once, more than once, or not at all.

When antibiotics that are inhibitory to gram-negative bacteria are added to blood agar, it’s which of the following?

In this pathway, lactic acid is produced.

Which of the following ingredients is characteristic of a complex medium?

Which of the following are uncouplers of oxidative phosphorylation?

An RBC is placed into a hypertonic solution.

Carbon dioxide is, or can be, a by-product of which of the following?

Obligate halophiles require ________.

For the following ten questions, choose the answer that best matches the description provided. Use each choice once.

Gram-positive cells immediately following the counterstain