Posted: November 28th, 2022

Bio Lab 4 1

I need help with a Bio Lab 4 1. Which size is noted as “close to the limits of human vision?” (2 pts) 2. Name the organism shown in the picture, and describe some of the roles this type of organism fills biologically. (6 pts) 3. We, humans, are eukaryotic. This means that our cells have a membrane-bound nucleus and organelles. Based on the activity, what is the size for most eukaryotic cells? (2 pts) 4. When looking at the eukaryotic cell photo, there are 2 types of immune cells. Answer the following for the GRAY cell (8 pts) 4a. Name the cell 4b. Provide the size rage of this cell (according to the activity) 4c. Describe the role of this cell in the body (you may have to look this up in your textbook or online) Provide your source of information in your answer 5. The gray cell (discussed in #4) is approaching bacterial cells (Streptococcus sp.). According to the activity, what is the size range for the bacterial cells? (2 pts) 6. A bacterial cell is shown with 3 cellular components labeled. 6a. At what size to you see the TEM (Transmission Electron Micrograph – picture taken using a transmission electron microscope) of the bacterial cell? (2 pts) 6b. Name and describe the 3 components that are labeled on the bacterial cell. (6 pts) 7. Viruses cause many issues for humans (and other species). To successfully combat viruses, we must understand what they are. Find the size that allows you to see the image of a Rhinovirus. Using the information in this portion of the activity, answer the following: 7a. Rhinoviruses are responsible for causing ___________. (2 pts) 7b. Why do I keep getting sick if I have built immunity to the rhinovirus that caused my illness? (2 pts) 7c. What part of the virus is recognizable to the immune system, and how many varieties of this have been recorded in Rhinoviruses? (4 pts) 8. Answer the following regarding molecules: 8a. Molecules can be visualized at what size? (2 pts) 8b. Name the molecule shown, and describe its role in the body. (4 pts) GO TO PAGE 2 of the activity to answer the following (Be certain to INCLUDE UNITS for each answer – i.e. 2mm or 7 angstroms): –8 pts total — 1 pt for each measurement 9. Select “1” and estimate: 9a. Size of the virus head 9b. Size of the virus tail 10. Select “3” and estimate the size of the lysosome molecule 11. Select “4” and estimate the length of the cyclops body 12. Select “6” and estimate 12a. The size of the 80S (red) ribosome (found in mammalian cells) 12b. The size of the 70s (blue) ribosome (found in bacterial cells) 13. Select “8” and estimate 13a. The diameter of A – an erythrocyte (red blood cell) 13b. The diameter of B – lymphocyte (white blood cell)

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