Welcome to Module 3

Welcome to Week 3!

In this week's module, we will cover the cell. Having an understanding of microscopes opens an opportunity to explore in depth the structure and functions of the cell. In Chapter 4 - A Tour of the Cell.

For this unit, please read Chapter 4, complete the homework assignment, the Interactive Lab on the cell, and the Dynamic Chapter 4 Quiz.

I have posted learning objectives for you to use as a study guide for your quiz and exam and PowerPoints for this chapter. Helpful videos are included in the PowerPoints and the chapter assignments.

As always, if you have any questions, please contact me.

Dr. Burke

Module Learning Outcomes

Upon successful completion of this module, you will be able to:

Introduction to the Cell

4.1 Compare the designs of images produced by a light microscope, a scanning electron microscope, and a transmission electron microscope. Distinguish between magnification and resolution.

4.1 Describe the two parts of cell theory.

4.2 Explain why there are upper and lower limits to cell size.

4.2 Describe the structure of a plasma membrane and relate these parts to the functions of the plasma membrane.

4.3–4.4 Distinguish between the structures of prokaryotic and eukaryotic cells.

4.4 Explain why compartmentalization is important in eukaryotic cells.

4.4 Compare the structures of plant and animal cells. Note the function of each cell part.

The Nucleus and Ribosomes

4.5 Describe the structure and functions of the nucleus and nucleolus. Explain how DNA is packaged inside of the nucleus.

4.6 Describe the functions of ribosomes. Explain why some ribosomes are free in the fluid of the cytoplasm while others are bound to the endoplasmic reticulum or nuclear envelope.

The Endomembrane System

4.7–4.12 Describe the structures and functions of the components of the endomembrane system, including smooth and rough endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles, and peroxisomes.

Energy-Converting Organelles

4.13–4.14 Compare the structures and functions of chloroplasts and mitochondria.

4.15 Describe the evidence that suggests that mitochondria and chloroplasts evolved by endosymbiosis.
1. The Cytoskeleton and Cell Surfaces
  
  4.16 Compare the structures and functions of microfilaments, intermediate filaments, and microtubules.
  
  4.17 Explain how technological advances helped us understand the structure and functions of the cytoskeleton.
  
  4.18 Relate the structure of cilia and flagella to their functions.
  
  4.19 Relate the structure of the extracellular matrix to its functions.
  
  4.20 Compare the structures and functions of tight junctions, anchoring junctions, and gap junctions.
  
  4.21 Relate the structures of plant cell walls and plasmodesmata to their functions.
  
  4.22 Describe the four functional categories of organelles in eukaryotic cells.
(CLO = Course Learning Outcome)

To Do

Please read/watch all of the module learning materials (readings, presentations, videos, etc.) and complete all assignments/assessments listed below. If you have questions, please contact the course instructor or ask in the Questions About This Course forum.

Presentations:

Chapter 4 PowerPoints: cc10_ch04_lecture_accessible.pptx

Assignments/Assessments:

See above.

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