Ch 13: Cellular Structure & Processes in Bacteria & Protists

About This Chapter

Learn how to identify different cellular structures in bacteria and protists. Test your mastery on these topics with short quizzes that follow each lesson.

Bacteria & Protists

This chapter covers topics on some of the smallest representatives of the living world -- bacteria & protists. You'll learn to identify the majors types of each and explain their similarities and differences. Among other topics, we'll cover the following:

  • Bacteria and Protist cell structures, morphology, and functions
  • Different locations where Bacteria and Protist live, including freshwater and anaerobic environments
  • Examples of Protist life cycle and characteristics like reproduction, feeding, and locomotion

12 Lessons in Chapter 13: Cellular Structure & Processes in Bacteria & Protists
Test your knowledge with a 30-question chapter practice test
What is Bacteria? - Definition & Types

1. What is Bacteria? - Definition & Types

Germs...bugs...prokaryotes...monerans. Whatever you call them, bacteria outnumber every other kind of life on this planet. In this lesson, we'll take a look at these tiny creatures to determine exactly what they are, as well as the methods we use to try and classify them.

Archaea & Bacteria: Similarities & Differences

2. Archaea & Bacteria: Similarities & Differences

Archaea and bacteria are both microorganisms. They are similar in size and shape, but differ greatly upon closer inspection of their genes and proteins. Find out more in this lesson.

Bacterial Cell Morphology and Classification: Definition, Shapes & Arrangements

3. 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!

Types of Bacteria Found in Anaerobic Environments

4. Types of Bacteria Found in Anaerobic Environments

This lesson will focus in on the world of anaerobes. We'll discuss the different types of anaerobes that abound on this planet, including obligate, facultative and aerotolerant anaerobes.

Bacterial Cell Walls: Structure, Function & Types

5. 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.

Protist Cell Structure

6. Protist Cell Structure

Protists are an extremely diverse group of eukaryotic organisms. This lesson provides an overview of various protist cells, including their structures, organelles, shapes, and sizes.

Protist Life Cycle

7. Protist Life Cycle

In this lesson, you'll learn about protists. In particular, you'll learn about their life cycles, including reproduction and stages of growth and development.

Heterotrophic Protists: Feeding Mechanism, Characteristics & Reproduction

8. Heterotrophic Protists: Feeding Mechanism, Characteristics & Reproduction

Heterotrophic protists are not capable of making their own food. In order to live, they have to obtain carbon containing nutrients from the environment or by ingesting other living organisms. This lesson will describe a few of the mechanisms they use for feeding.

Colonial Protists: Definition & Examples

9. Colonial Protists: Definition & Examples

Protists are a unique group of organisms because they don't quite fit the mold. And while some protists prefer to live as individuals, other prefers to work together for the greatest benefit. These colonial protists are the topic of this lesson.

Common Freshwater Protists

10. Common Freshwater Protists

In bodies of fresh water, we find unicellular organisms known as protists. Some are easy to see, such as clumps of algae. However, many are microscopic. Learn more about common freshwater protists in this lesson.

Examples of Unicellular Protists

11. Examples of Unicellular Protists

Protists are a diverse group of eukaryotic organisms that usually live in aquatic environments. This lesson describes unicellular protists - entire organisms that are just a single cell!

3 Methods of Protist Locomotion

12. 3 Methods of Protist Locomotion

In this lesson, we will explore protists and the mechanisms these organisms use to move around--their methods of locomotion. At the end, take a brief quiz to test your knowledge.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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