Capsules are made of ______ and _____.

Name two functions of capsules.

Name two pathogens that have capsules.

Because capsules have a high water content and cannot be stained, this technique will stain the background instead, a method called ___ staining. This technique also deletes the step of ___ fixing after air-drying because it could distort the shape of the capsules.

The first dye in this technique is _____ which is ___ (acidic/basic), and it stains the background to be ____.

The second dye in this technique is _____ which is ___ , and it will change the background to be _____.

The final appearance of the slide will be a _________ background, bacteria stained to be _____, and the capsules are ___.