Week 6 labster PDF

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labster for week 6...

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BIOS242 OL, Week 6 Name:

Lab 6: Bacterial Cell Structures: An Introduction to the Bacterial Cell Virtual Simulation Lab Learning Outcomes   

Describe the general bacterial cell structure and function, including differentiating between the most common shapes of bacteria and cell arrangements. Describe the general bacterial cytoplasmic content and compare it to eukaryotic cytoplasmic content. Describe special features of bacteria such as plasmids, flagella or inclusion bodies and how they are necessary for bacteria to survive

Introduction: Global warming is causing the ice to melt in Antarctica, leading to the discovery of bacteria that have survived this extreme environment. In this simulation, you will learn about bacterial cell structures and how these are important for bacterial survival. Identify Bacteria in a Sample from Antarctica First you will collect a sample of melted ice from Antarctica that contains various bacteria. Your task is to investigate what is in the sample, and which bacterial cell structures are important for bacterial survival. Study and Assemble Bacterial Cell Structures In order to analyze your bacterial sample and to understand the bacterial cell’s internal and external structures, you will explore the motility features and shapes of bacteria in your sample. You will also compare the outer and inner bacterial cell structures to that of the Eukaryotic cell and assemble the cytoplasmic content of the bacterial and the Eukaryotic cell. Apply Your Knowledge Finally, you will compare your bacterial cell structures to other bacteria and learn which cellular structures are important for the bacteria to survive in extreme environments. Can you help the Arctic researchers decide which survival features they should study? Record your responses to the questions from simulation (these are in addition to the questions below).

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BIOS242 OL, Week 6 Name:

Questions: 1. Describe the difference between dark field and bright field microscopy?

The bright-field microscope is most widely used then the dark field . In bright field mode, the regions with heavier atoms are darker. In dark field mode these regions are brighter.

2. What are the major shapes of bacteria and their arrangements?

Coccus appear spherical , bacillus are rod shaped and spiral are comma shaped

3. Give 5 differences between eukaryote and prokaryotic cells?

Prokaryotic has no nucleus while eukaryote has a nucleus Prokaryotic has is unicellular while eukaryote is multi cellular Prokaryotic has ribosomes which are much smaller when compared to eukaryote Prokaryotic cells do not consist of a Golgi apparatus, but eukaryotes do Transcription occurs in the cytoplasm while transcription occurs in the cell wall of eukaryotes

4. What is the difference between the cell wall and the cell membrane? The cell wall forms protection to one cell, and the cell membrane controls the passage of materials into and out of a cell 2

BIOS242 OL, Week 6 Name:

5. Reflection: Write 5 sentences on what you learned from this simulation; what did you like and what was something that you would not prefer to be on simulation? I liked this labster because I am very fascinated by Antartica and all the secrets that is hidden under the ice. Global warming is detrimental to humans and the planet but with the melting of the ice there are so many discoveries of new organisms and life forms that are presenting themselves which we had no idea about before . It is like an entire different world exist .I learned about the components of the parytoic and eukaryotic cells . Putting the correct components into the cells was a good refresher from A&P.

I liked being a virtual scientist collecting samples of ice in Antarctica. This would be such a cool thing to be able to do in real life. Antarctica is a wonder and everything about it fascinates me . The one thing I disliked is that I would have enjoyed being in the outside environment more in this labster . Collecting samples was very cool .

Grading Rubric:

Activity

Deliverable

Points

Document Submission

Complete lab report and answer questions

15

   

Observation (3 points)

Purpose (1 point) Questions (6 points) Reflection (5 points) 3

BIOS242 OL, Week 6 Name:

Total

Complete all lab

15

4...