About This Chapter
Below is a sample breakdown of the Bacterial Cell Biology chapter into a 5-day school week. Based on the pace of your course, you may need to adapt the lesson plan to fit your needs.
|Day||Topics||Key Terms and Concepts Covered|
|Monday||Bacterial cell morphology, cytoplasm and cell membranes;||The shapes and arrangements of bacterial cells and how they're used to classify bacteria; cell membrane structure and the components contained within the bacterial cytoplasm|
|Tuesday||Bacterial cell walls; bacterial structures and functions; bacterial endospores||Bacterial cell walls, Gram-negative and Gram-positive bacteria; types of bacterial-specific structures and their functions; endospores and their importance for bacterial persistence|
|Wednesday||The bacterial genome; bacterial plasmids; bacterial conjugation and transformation||Definition of the bacterial genome, its size, length, and how it fits into cells; definition of plasmids, how they replicate, and how they are used in biological research; process of bacterial conjugation and transformation and why it can be advantageous for bacteria to exchange genetic material|
|Thursday||E. coli and the cell growth requirements of E. coli. and auxotrophs; bacterial fermentation; anaerobic and aerobic bacterial metabolism||Basic growth requirements for E. coli and auxotrophs and why it is often used in biological research; process of bacterial fermentation; definition of anaerobic and aerobic bacterial metabolism|
|Friday||How an operon controls transcription in a prokaryotic cell; regulation of gene expression||Definition and parts of operons and how they function to control gene transcription in prokaryotes; process of gene expression and how it's regulated through the control of gene transcription|
1. Bacterial Cell Morphology and Classification: Definition, Shapes & Arrangements
Do all bacteria look the same? Definitely not! These tiny, singled-celled organisms come in a variety of morphologies, from cocci to spirals to tetrads. Many bacterial names even have clues to their morphology!
2. Bacterial Cytoplasm & Cell Membrane: Structure & Components
Some people say a bacterial cell is just a simple bag of enzymes. This couldn't be further from the truth! Learn about the structure and function of the bacterial cell membrane, what's in the cytoplasm, and how membrane surface area impacts bacterial size.
3. Bacterial Cell Walls: Structure, Function & Types
The bacterial cell wall has to be strong to prevent cell lysis but also porous to allow transport across the cell membrane. In this lesson, we will examine the structure of the bacterial cell wall and how it accomplishes both of these crucial tasks.
4. Bacterial Structures and Their Functions
A bacterial cell is not smooth like a balloon. Bacteria can be covered with a wide range of structures like pili and capsules that give each species of bacteria different abilities. In this lesson, you will learn about several of these key external structures of bacteria.
5. Bacterial Endospores: Definition & Formation
Some bacteria have the ability to enter a state of suspended animation when conditions are unfavorable. In this lesson, we will examine the bacterial endospore and learn how and why bacteria produce these structures.
6. The Bacterial Genome: Structure & Organization
All organisms have DNA. While the basic structure of DNA is the same, the organization of the DNA in bacterial cells is very different than in human or animal cells. In this lesson we will explore the basics of the bacterial genome.
7. Bacterial Plasmids: Definition, Function & Uses
What if you could pick up bits of DNA and change your traits? In the animal kingdom, organisms are born with their lifetime total of DNA. In the bacterial world, cells can add to their genome by acquiring plasmids.
8. Bacterial Conjugation: Definition & Protocol
You probably didn't know that bacteria can engage in sexual reproduction. It is not what you think. In this lesson we will explore the process of bacterial conjugation and its impact on genetic variability in bacteria.
9. Bacterial Transformation: Definition, Process & Applications
DNA is all around you. So are bacteria. Did you know that those bacteria can pick up and use that DNA? In this lesson we will examine the process of transformation and how bacteria are able to make use of environmental DNA.
10. Bacterial Transduction: Definition, Process & Advantages
Genetic diversity allows organisms to adapt to changing environmental conditions. In this lesson, we will explore bacterial transduction and how it allows bacteria to transfer genes and increase genetic diversity.
11. Regulation of Gene Expression: Transcriptional Repression and Induction
Do our genes work the same way all the time? How do we regulate the expression of our genes? Explore the various ways organisms control gene transcription through repression and induction of operons.
12. How An Operon Controls Transcription in a Prokaryotic Cell
Is gene regulation really as simple as flipping a switch? What are the parts of an operon, and how do they function to control gene transcription? We'll study the lac operon to answer these questions.
13. Aerobic Bacterial Metabolism: Definition & Process
Respiration is the process of converting nutrients into usable energy. Several different mechanisms exist in the bacterial world. In this lesson, we will examine the role of oxygen in bacterial aerobic respiration.
14. Anaerobic Bacterial Metabolism: Definition & Process
Bacteria are metabolically versatile and can grow in a range of environments. Many bacteria grow in environments without oxygen using anaerobic respiration and fermentation. This lesson will discuss the process of anaerobic respiration in bacteria.
15. Bacterial Fermentation Process & Products
Bacteria in anaerobic environments can break down organic compounds using fermentation. If you have ever eaten a fermented food, such as bread, yogurt or cheese, you have tasted the products of fermentation. Now, learn the details of this process.
16. Escherichia coli (E. coli) as a Model Organism or Host Cell
A model organism can help scientists perform faster and more efficient biological research. This lesson examines the most utilized model organism, E. coli, and looks at the major characteristics that make it a perfect model.
17. Growth Requirements of E. coli and Auxotrophs
Escherichia coli is a normal inhabitant of your gastrointestinal tract. In this lesson we will examine the conditions required for optimal growth of E. coli both in your colon and in culture.
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