MBK – Lab Report Name: ___Melissa Callon _________________
Section: ___________________
Observing Bacteria and Blood
Questions:
@. A. List the following parts of the microscope and describe the function of each 1. Eyepiece: x10 or x15 lenses used to look through to view objects within the viewing field 2. Eyepiece Tube: holds the eyepiece 3. Main Tube: moves vertically for focusing 4. Coarse Adjustment: Used for the initial focusing of the viewing field 5. Fine Adjustment knob: Used for the final focusing of the viewing field 6. Stage: holds the specimen or slide 7. Diaphragm: controls the volume of light reaching the specimen or slide 8. Inclination joint: tilts the microscope
Section: ___________________
Observing Bacteria and Blood
Questions:
@. A. List the following parts of the microscope and describe the function of each 1. Eyepiece: x10 or x15 lenses used to look through to view objects within the viewing field 2. Eyepiece Tube: holds the eyepiece 3. Main Tube: moves vertically for focusing 4. Coarse Adjustment: Used for the initial focusing of the viewing field 5. Fine Adjustment knob: Used for the final focusing of the viewing field 6. Stage: holds the specimen or slide 7. Diaphragm: controls the volume of light reaching the specimen or slide 8. Inclination joint: tilts the microscope
The Yogurt Lab Introduction: In order to understand this lab, it is important to understand yogurt. Yogurt is the product of a certain bacteria that changes the properties of milk into a more viscous form. Bacteria in itself is a single-celled organism that reproduces by binary fission. This means that it splits apart to copy itself and can do. PROCEDURES: Using the microscope, an oil immersion lens and observing Bacteria Cultures in Yogurt. Preparing a Blood Slide and observing Blood: After reviewing the section of the manual.
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`. D. Were there observable differences between your fresh yogurt slide and the prepared yogurt slide? If so, describe them.
The main difference between the fresh yogurt and prepared yogurt was the amount of various bacteria that appeared on the prepared yogurt slide over the fresh yogurt slide. There were more bunches of bacteria in the prepared slide compared to the fresh slide.
`. E. Describe the four main bacterial shapes
The four main bacterial shapes are cocci, bacillus, spirillium, and vibros. Cocci are spherical shaped while bacillus is rod shaped. Spirillium is spiral shaped while vibros is shaped like a comma.
`. F. What are the common arrangements bacteria are found in.
Bacteria can occur in pairs (diplo), strands (strepto), or clusters (staphlo).
`. G. Were you able to identify specific bacterial morphologies on either yogurt slide? If so, which types?
In the prepared yogurt slide, it looked to me like there were streptobacillus bunches of bacteria, although it was difficult to tell. In the fresh yogurt slide there were both cocci and bacillus bacteria.
`. H. Describe the cells you were able to see in the blood smear.
Within the blood smear, I was able to identify monocyte, lymphocite, neutrophil, eosinophil, and basophil cells within the blood smears provided by the module. On the microscope slides, I was able to see erythrocytes or red blood cells.
`. I. Are the cells you observed
The main difference between the fresh yogurt and prepared yogurt was the amount of various bacteria that appeared on the prepared yogurt slide over the fresh yogurt slide. There were more bunches of bacteria in the prepared slide compared to the fresh slide.
`. E. Describe the four main bacterial shapes
The four main bacterial shapes are cocci, bacillus, spirillium, and vibros. Cocci are spherical shaped while bacillus is rod shaped. Spirillium is spiral shaped while vibros is shaped like a comma.
`. F. What are the common arrangements bacteria are found in.
Bacteria can occur in pairs (diplo), strands (strepto), or clusters (staphlo).
`. G. Were you able to identify specific bacterial morphologies on either yogurt slide? If so, which types?
In the prepared yogurt slide, it looked to me like there were streptobacillus bunches of bacteria, although it was difficult to tell. In the fresh yogurt slide there were both cocci and bacillus bacteria.
`. H. Describe the cells you were able to see in the blood smear.
Within the blood smear, I was able to identify monocyte, lymphocite, neutrophil, eosinophil, and basophil cells within the blood smears provided by the module. On the microscope slides, I was able to see erythrocytes or red blood cells.
`. I. Are the cells you observed