Ch 7: Cell Structure, Function & Division

About This Chapter

Watch the lessons in this chapter to go over a descriptive analysis of cell structure, function, and division. This chapter has been constructed by field experts who have designed these lessons specifically to help you retain more factual information about cell biology and related processes.

Cell Structure, Function & Division - Chapter Summary

Brush up on this biology chapter to become familiarized with cell structure, function, and division. If you are not well-acquainted with this topic, start with the first lesson and discover what living organisms are made of. Individuals who have a better grasp on this topic can pick and choose lessons that cover concepts like bacteria, plant and animal cells, chromatin, DNA, haploid gametes, and more. By taking the time to go over all the lessons in the chapter, you will be prepared to:

  • Show the fundamental parts of cells
  • Establish the applications of cell theory
  • Differentiate prokaryotic from eukaryotic cells
  • Determine the function of organelles in cells
  • Outline parts of the genome
  • Evaluate the significance of the structure of chromosomes
  • Map out the structural parts of the nucleosome
  • Name the most significant elements in biological molecules
  • Describe each part of the cell cycle
  • Identify what occurs during mitosis I-II
  • Define the cell division process during meiosis I-II

The majority of the lessons available in our chapters are in the form of video lessons. You can complete an entire video lesson in as little as 5-10 minutes. Just because our video lessons are shorter in duration does not mean you will miss out on any information. We cut out all of the fluff and pack our video lessons with the most important facts, figures, and definitions that you will need to know to truly comprehend these topics.

13 Lessons in Chapter 7: Cell Structure, Function & Division
Test your knowledge with a 30-question chapter practice test
What are Cells? - Overview

1. What are Cells? - Overview

All living organisms are made up of cells, but do you know what a cell is? In this lesson, you can learn about the three main structures that all cells contain and about the two major types of cells.

What is Cell Theory? - Definition & Parts

2. What is Cell Theory? - Definition & Parts

Cell theory is a fundamental theory in biology that makes generalizations about cells. This lesson will help you understand the three main principles of cell theory.

Eukaryotic and Prokaryotic Cells: Similarities and Differences

3. Eukaryotic and Prokaryotic Cells: Similarities and Differences

In this lesson, we discuss the similarities and differences between the eukaryotic cells of your body and prokaryotic cells such as bacteria. Eukaryotes organize different functions within specialized membrane-bound compartments called organelles. These structures do not exist in prokaryotes.

Organelles in Cells: Definition & Functions

4. Organelles in Cells: Definition & Functions

This lesson will focus on the major organelles that are found inside eukaryotic cells. It will discuss their structures and functions. The differences in organelles found in plant and animal cells will also be covered.

Basic Genetics: The Genome & Chromosomes

5. Basic Genetics: The Genome & Chromosomes

There are approximately 3 billion bases in the human genome. In this lesson, you'll learn more about the genome and its organization into chromosomes. We think about DNA often as the blueprint for life, but we can also think of it as the recipe for life with the nucleus being the library.

How is DNA Organized into Chromosomes? - Structure & Function

6. How is DNA Organized into Chromosomes? - Structure & Function

Explore the structure of chromosomes and see how DNA fits inside the nucleus of the cell. In this lesson, you'll learn about histones, chromatin and nucleosomes.

Nucleosome: Definition & Structure

7. Nucleosome: Definition & Structure

Each of your cells has about 2 meters of linear DNA. This has to be packed into a nucleus roughly 10 micrometers in diameter. This means your nucleus must be excellent at packaging your genetic material! This lesson tells you how your DNA is packaged.

Major Elements in Biological Molecules: Proteins, Nucleic Acids, Carbohydrates & Lipids

8. Major Elements in Biological Molecules: Proteins, Nucleic Acids, Carbohydrates & Lipids

Bacterial cells have complex macromolecules built from simple molecules. In this lesson, we will look at the major elements in the building blocks of proteins, nucleic acids, carbohydrates, and lipids.

The Cell Cycle: Definition, Phases & Sequence

9. The Cell Cycle: Definition, Phases & Sequence

Learn about the dividing and non-dividing states of the cell and discover the different phases of the cell cycle, including interphase, cytokinesis, and the stages of cell division.

Mitotic Spindle: Definition, Formation & Function

10. Mitotic Spindle: Definition, Formation & Function

Condensation makes DNA ready / And microtubules hold it steady / A microtubule's a fancy rope / To move the DNA is the hope / From spindle poles they do extend / To align each chromosome in the end

Stages of Mitosis: Description & Sequence

11. Stages of Mitosis: Description & Sequence

Let's take a second look at mitosis and focus on the phases of chromosome segregation. As we concentrate on chromosomes, you'll learn the tricky dance that takes place through all five phases of mitosis.

Meiosis I Stages: Prophase I, Metaphase I, Anaphase I & Telophase I

12. Meiosis I Stages: Prophase I, Metaphase I, Anaphase I & Telophase I

How does meiosis keep track of homologs and reduce the genome by half? Know these answers and more as we navigate the steps of meiosis I. This lesson will be tetradical!

Meiosis II: Definition, Stages & Comparison to Meiosis I

13. Meiosis II: Definition, Stages & Comparison to Meiosis I

Behold round two of meiotic cell division! You'll see how meiosis II keeps the genome intact and gives the final push to produce haploid gametes, which make the world go round.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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