Home > Degree Level Essays > Biological Sciences > Microbiology

Microbiology

Question: How reliable is DNA fingerprinting?

Answer: DNA profiling is an example of how advances in medical research have...

Read more of the answer →

Subject: Biological Sciences
Course: Microbiology
Level: Degree
Year: 1st
Mark: 63%
Words: 1566

Date submitted: March 13, 2009
Date written: November, 2003
References: Yes
Document type: Essay*
Essay ID: 984

Question: Compare and contrast vertebrate and invertebrate vision.

Answer: Although vertebrates and invertebrates originally evolved from a common ancestral root, both...

Read more of the answer →

Subject: Biological Sciences
Course: Microbiology
Level: Degree
Year: 1st
Mark: 61%
Words: 2288

Date submitted: March 17, 2009
Date written: December, 2003
References: Yes
Document type: Essay*
Essay ID: 1023

Question: Experiment 1
Title: Subculturing and Isolation of Pure Culture

Objective:
1. To study the technique of aseptic in order to transfer microorganisms to a subculture
2. To study the technique of isolation of pure culture and perform a streak plate method

Answer: Method: (a) Subculturing 1. The tubes to be inoculated were labelled with...

Read more of the answer →

Subject: Biological Sciences
Course: Microbiology
Level: Degree
Year: 1st
Mark: Not available
Words: 649

Date submitted: August 02, 2013
Date written: May, 2013
References: No
Document type: Essay*
Essay ID: 4965

Question: Experiment 1
Title: Preparation of Bacterial Smear and Staining

Objective:
1. To learn the theory of staining bacterial cells.
2. To prepare a bacterial sample for staining.
3. To differentiate the microbes after staining.
4. To recognize the bacterial shapes and arrangements.
5. To learn the simple stain technique.
6. To learn the gram stain technique.
7. To learn how to identify the results of the organisms stained.
8. To recognize gram positive from gram negative bacteria.
9. To differences in cell wall and plasma membrane structures between the gram positive and gram negative bacteria.
10. To understand the role of the gram staining as an important differential stain.
11. To learn the usefulness of a simple stain vs. a differential stain.

Answer: Method: (a) Preparation of bacterial smear 1. A small amount of the...

Read more of the answer →

Subject: Biological Sciences
Course: Microbiology
Level: Degree
Year: 1st
Mark: Not available
Words: 984

Date submitted: August 02, 2013
Date written: June, 2013
References: No
Document type: Essay*
Essay ID: 4959

Question: Experiment 3
Title: Preparation of Bacterial Staining 2

Objectives:
1. To perform a negative staining procedure.
2. To perform the spore stain procedures for differentiate between bacterial shape and vegetative cell forms.
3. To perform the capsule stain procedures to distinguish capsular material from the bacterial cell.
4. To recognize the bacterial shapes and arrangements.
5. To learn how to identify the results of the organisms stained.

Materials:
1. Petri plates containing Staphylococcus aureus, bacillus subtilis and klebsiella pneumonia
2. Inoculating loop
3. Glass slide
4. Boiling tube
5. Beaker
6. Distilled water
7. India ink
8. Malachite green
9. Safranin
10. Carbolfuchsin
11. Crystal violet
12. Acid alcohol
13. Methylene blue