Chapter 7

 

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Chapter 7
Chapter 8

Mr. Martin and I have put together a web site to help you to study the parts of a cell and what they do.  If you would like to visit our site, click on the link below

Crazy Cells

 

 

Chapter 7 A View of the Cell Expectations

 

By the end of the chapter you should have the following completed:

 1.      Be able to define and give an example when appropriate of:

Group A:  cell, Hooke, compound light microscope, Anton van Leeuwenhoek, Cell Theory, Schleiden, Schwann, electron microscope, TEM, SEM, prokaryotes, eukaryotes, organelle, nucleus

Group B: plasma (cell) membrane, homeostasis, selective permeability, phospholipid, fluid mosaic model, transport proteins

Group C:  cell wall, chromatin, nucleolus, ribosomes, centriolesX, cytoplasm, endoplasmic reticulum, Golgi apparatus, vacuoles (vesicles), lysosomes, chloroplast, chlorophyll, mitochondria, cilia, flagella, cytoskeleton

Xindicates vocabulary that will be covered in class and not in the textbook

2.  All of the readings should be read with the goal of being able to discuss/explain the information contained in them.

        Section 7.1 The discovery of Cells                            Section 7.2 The plasma membrane

        Section 7.3 Eukaryotic Cell Structure

3.      Know all the material covered in class notes.

4.      Have the following expectation questions answered in your notebook.  Be sure to label the group number with your questions

Group 1 The Discovery of Cells  

1.      Why was the development of microscopes necessary for the study of cells?

2.      Compare the way images are formed in light microscopes and electron microscopes.

3.      How are prokaryotic cells and eukaryotic cells different?

4.      What are the three main ideas of the cell theory?

5.      How did the use of stains advance the study of cells?

Group 2 The Plasma Membrane

1.  How is a plasma membrane a bilayer structure?

2.  Explain how selective permeability maintains homeostasis within the cell.

3.  What are the components of the phospholipid bilayer, and how are they organized to form the plasma membrane?

4. Why is the plasma membrane referred to as a fluid mosaic?

5.  Suggest what might happen if cells grow and reproduce in an environment where no cholesterol is available.

Group 3 Eukaryotic Cell Structure

  1.  What is the advantage of the highly folded membranes in a cell?

  2. Make an organelle study table.  Include their location and function.

  3. What organelle would be especially numerous in a cell that produces large amounts of protein products?

  4. What organelle would be especially numerous in a cell that does a great deal of work like a muscle cell?

  5. Why might a cell need a cell wall in addition to a plasma membrane?

5.      The following labs should be handed in with discussion questions written out and answered in complete sentences.  Conclusion, if assigned, should include restatement of purpose, summary of data, data interpretation, and evaluation of hypothesis.

Getting to know the microscope lab                                         Observing Cells lab

          Problem Solving Lab 7-1 Recognizing cause and effect  p.182     Organelle analogy project 

6.      Know how to convert from one unit to another in the metric system using factor label method.

7.      Know what the metric prefixes mean and be able to apply them in mathematical problems.

8.      Know all organelles, their location in the cell and their function.

 

Extra Credit: All homework must be turned in on time for this chapter in order to be eligible.  Must be turned in before taking the test.   (maximum 2 pts on test)

 

A cell can be compared to a small country.  A cell has a membrane at its outer edge that screens what comes into the cell.  Likewise, a small country may have border guards at its edges to prevent the entry of certain people or objects.  Make a list of cell parts.  Then try to think of the parts of the country that may have similar functions.  Give reason for your choices.