Question

multiple choice question
capsules are typically composed of ______.

nucleic acids
sugars
lipids
proteins

Explanation:

Capsules (in the context of biology, like bacterial capsules) are typically composed of polysaccharides (sugars) or sometimes polypeptides, but among the given options, sugars (polysaccharides are complex sugars) are a common component. Nucleic acids are for genetic info, lipids for membranes, proteins have other roles; capsules often use sugar - based structures.

Answer:

B. sugars (Note: Assuming the options are labeled with letters, if original labels were different, adjust. But based on content, the correct option is the one with "sugars" as bacterial capsules are often polysaccharide - based (sugars), though some can be protein - based, but among the given, sugars is the most typical from standard biology knowledge for capsule composition in many cases like bacterial capsules.)