URL: www.cellsalive.com Objective: You will look at computer models of cells, learn the functions and the descriptions of the cells and their components. Navigating the site: Cells.alive has a navigation bar at the left. After accessing the page, click on CELL BIOLOGY on the leftside navigation bar. From here, you will access the links: "How Big is a..", the animal cell model, the plant cell model, and the bacterial cell model.
Part A. "HOW BIG IS A...." Here you will look at objects found on the head of a pin. Your job is to rank them in order of size on the chart below and estimate the length of each (in nanometers, micrometers, or millimeters). The line in the bottom right corner of the screen is used to help you estimate. Sketch each of the objects. Object Human hair
Dust Mite
Red Blood Cells E. coli
Staphylococcus
Ebola virus
Rhinovirus
Sketch
Size in nanometers, micrometers or millilmeters
Part B: Bacterial Cell Model - (you will need to return to the "Cell Biology" link to access this page, or hit your back button)
Part C; Animal Cell Model - (you will need to return to the "Cell Biology" link to access this page, or hit your back button) For this model, you will need to click on the various parts of the cell to go to a screen that tells you about the parts. Answers to the following questions are found there. 1. What do mitochondria do?
Sketch each of the following. Mitochondria
2. How big are mitochondria?
3. What does the Golgi Apparatus do? Lysosome 4. What is the difference between smooth and rough ER?
5. Where is the nucleolus found?
Golgi Apparatus 6. What does the nucleolus do?
7. What does the cytoskeleton do?
8. Cytosol goes by what other name?
Rough ER
9. What is the function of the cytosol?
10. What is the function of the lysosome?
Part D: Plant Cell Model - (you will need to return to the "Cell Biology" link to access this page, or hit your back button) 1. What other type of cell has a cell wall?
Sketch the following Chloroplast
2. What makes the plant cells green?
3. In plant cells, what does the vacuole do? Vacuole
Part E: Overview For the chart below, place a check in the box if the cell has that component. Plant Chloroplast Vacuole Ribosome Mitochondria DNA Endoplasmic Reticulum Cell Wall Golgi Apparatus
Cells Alive- Internet Lesson Part A. "HOW BIG IS A...."
Objective: You will look at computer models of cells, learn the functions and the descriptions of the cells and their components. Navigating the site: Cells.alive ...
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