Question

question 15
the negative stain is used to
a determine gram reaction.
b determine flagella arrangement.
c visualize around the speciman.
d visualize endospores.
e determine cell size.

Explanation:

Negative staining involves applying a stain that does not penetrate the specimen but colors the background. This allows for visualization of the specimen's outline and features around it, like capsule - like structures. Gram - staining is for determining Gram reaction, flagella staining for flagella arrangement, and special stains for endospores. Cell size can be estimated by other means rather than negative staining.

Answer:

C. visualize around the specimen.