Welcome to Module 6

Welcome to Week 6!

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 5 - The Working Cell.

For this unit, please read Chapter 5, complete the homework assignment, the Interactive Lab on the cell, and the Dynamic Chapter 5 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:

Membrane Structure and Function

          5.1      Describe the structure and diverse functions of cell membranes.

          5.2      Relate the structure of phospholipid molecules to the structure and properties of cell membranes.

          5.2      Explain how the properties of phospholipids spontaneously form membranes.

          5.3      Define diffusion and describe the process of passive transport.

          5.4      Explain how osmosis can be defined as the diffusion of water across a membrane.

          5.5      Distinguish between hypertonic, hypotonic, and isotonic solutions.

          5.5      Explain how animal and plant cells change when placed into hypertonic or hypotonic solutions.

          5.6      Explain how transport proteins facilitate diffusion.

          5.7      Explain how aquaporins were discovered.

          5.8      Compare the processes of active transport and facilitated diffusion.

          5.9      Distinguish between exocytosis, endocytosis, phagocytosis, and receptor-mediated endocytosis.

Energy and the Cell

          5.10    Define and compare kinetic energy, potential energy, chemical energy, and heat.

          5.10    Define the first and second laws of thermodynamics. Explain how these laws of thermodynamics relate to energy use in a cell and in a car.

          5.11    Define and compare endergonic and exergonic reactions. Explain how cells use cellular respiration and energy coupling.

          5.12    Explain how ATP functions as an energy shuttle.

          5.12    Describe the three main types of cellular work driven by ATP.

How Enzymes Function

          5.13    Define activation energy and explain how enzymes speed up chemical reactions.

          5.14    Describe the structure of an enzyme-substrate interaction.

          5.14    Explain how the cellular environment affects enzyme activity.

          5.15    Explain how competitive and noncompetitive inhibitors alter an enzyme’s activity.

          5.15    Describe the process of feedback inhibition.

          5.16    Explain how certain drugs, pesticides, and poisons can affect enzymes.

(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 5 PowerPoints: cc10_ch05_lecture_accessible.pptx

Assignments/Assessments:

See above.

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