Weekly Update 5 - Metabolism

Weekly Update Week 5 - Metabolism

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This week you have your first milestones, it is also the time when we start to tackle one of the big topics of microbiology: Metabolism. Bacteria and Archaea hold some of the most metabolically diverse organisms on the planet, and we need to look over some of the ways that they gather and process energy.

This is also a week when your time management skills will be tested. Monday at 5pm, your first milestone exam will open. You will have one attempt at the exam, and it will close at 5pm on Tuesday. On Wednesday, CPR will open for you to upload your first milestone paper. During the week, I will also be sending out newsletters and challenges. So pick your battles this week.

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Suggested Readings: The only reading for this week is to review the chapters in your text that deal with metabolism.

• Chapter 13: Energetics and Catabolism
• Chapter 14: Respiration, Lithotrophy, and Photolysis

What is meant by review? Spend about 30 minutes on each chapter. Skim the chapter. Then use it as a reference when we go over material.

In class this week, we will work with molecular models and go through glucose. The goal is to understand what happens in the 10 step of glycolysis, and why it is important.

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Learning Objectives:

• Be able to describe the laws of thermodynamics and how they apply to living systems.
• Be able to explain the importance of redox reactions to cells, and the importance of electron carriers.
• Be able to discuss glycolysis as an example of sugar catabolism.
• Be able to explain what happens in the various steps of glycolysis.
• Be able to differentiate between the Embden-Meyerhof-Parnas (EMP) pathway and the Entner-Doudoroff (ED) pathway.
• Be able to discuss fermentation and photoheterotrophy.
• Be able to describe the pentose phosphate shunt.
• Be able to describe the TCA cycle.
• Be able to discuss aromatic catabolism.
• Be able to correctly use the following terms: phototroph, chemotroph, lithotroph, organotroph, autotroph and heterotroph.
• Be able to describe the bacterial electron transport system.
• Be able to compare bacterial and eukaryal electron transport systems.
• Be able to discuss in detail the proton motive force.
• Be able to discuss anaerobic respiration.