Final Lab Report for Microbiology

Sample

Picture

Description

Chosen nutrient agar plate with isolated streak

Colony Morphology:

Size: small

Shape: punctiform

Color: creamy white

Margins: even

Elevation: flat

Surface: smooth

Opacity: opaque

Does this match the previous colony chosen from previous isolation streak? Why or why not?

The plate has the same characteristics as the previous ones, the only difference was that this one has more bacteria on the tail region than the previous.

Is it pure? Why or why not?

Yes, it is pure because the bacteria look the same throughout the plate.

Gram stain

40x objective

Cellular Morphology:

Size: small

Shape: rods

Arrangement: clustered

Color: pink

Staining characteristics: Gram negative, thin peptidoglycan

Potential errors? N/A

Do the 40x and 100x pictures match? Why or why not?

Yes, they match because the bacteria have the same cellular morphology.

Does this Gram stain result match the previous colony (obtained from isolation streak last week)? Why or why not?

Yes, the Gram stain match the previous colony because the bacteria is pink meaning Gram negative with a thin peptidoglycan.

Is it pure? Why?

Yes, it is pure because the have the same color, arrangement, and shape.

100x objective