Final Lab Report for Microbiology
Activity #4
Section: U01
Lab Title: Biochemical Testing of Isolated Bacterial Cultures.
Date: 02-22-2022
Student Name: Thalia Ramos Gigato
Student ID: 611550
Table 1: Isolation of chosen colony #1
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Sample |
Picture |
Description |
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Chosen nutrient agar plate with isolated streak |
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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.
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|
Gram stain |
40x objective
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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. |
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|
100x objective
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1