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Ch 8: Overview of Cell Biology

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12 Lessons in Chapter 8: Overview of Cell Biology
Test your knowledge with a 30-question chapter practice test
Semipermeable Membranes' Role in Cell Communication

1. Semipermeable Membranes' Role in Cell Communication

A semipermeable cell membrane allows for cell communication, or signaling. Explore the role of the semipermeable cell membrane in receiving signaling molecules, cell-to-cell recognition, and the functions of proteins and carbohydrates inside the cell membrane.

Nuclear Envelope: Definition, Function & Structure

2. Nuclear Envelope: Definition, Function & Structure

The nuclear envelope is a membrane barrier found in eukaryotic cells that separates the cells' cytoplasm from their nucleus. Explore the definition, function, and structure of the nuclear envelope to understand why this separation is important. Recognize the nuclear envelope's role in gene regulation and protein transportation.

Double Fertilization in Angiosperms: Definition & Process

3. Double Fertilization in Angiosperms: Definition & Process

Double fertilization in angiosperms is a process where a zygote and endosperm are formed in plants that have fruits and flowers. Explore the definition of reproductive structures in angiosperms, pollination, and the process of double fertilization.

Extracellular: Definition & Structures

4. Extracellular: Definition & Structures

Extracellular isn't just a way to refer to the outside of the cell: there's a whole lot going on out there that has to do with the growth, work, and ultimately the survival of the cell -- the tiniest part of life.

Methionine: Structure, Production & Benefits

5. Methionine: Structure, Production & Benefits

Have you ever heard of the amino acid methionine? In this lesson you will learn about the structure, production and benefits of methionine. After learning about methionine, you can check your understanding by taking a quiz.

Microfilaments: Definition, Function & Structure

6. Microfilaments: Definition, Function & Structure

Microfilaments are the minuscule rods made of mainly actin, the highly abundant protein within the cell, that provide shape and movement through tension. Learn the importance of their structure and the function of microfilaments for cell mobility.

Stroma Cells: Definition & Function

7. Stroma Cells: Definition & Function

There are many different types of tissue found in animals. One such tissue, stroma, are very basic yet essential to our survival. These stroma cells help our internal organs and allow us to live and function. We will talk about these here.

Do Animal Cells Have a Cell Membrane?

8. Do Animal Cells Have a Cell Membrane?

All animal cells contain cell membranes that provide structure and maintain homeostasis due to their semi-permeable nature. Learn about the general functions of cell membranes and how they control what substances enter or exit an animal cell.

Adherent & Suspension Cell Cultures

9. Adherent & Suspension Cell Cultures

Cell cultures are maintained through two common methods: adherent cultures and suspension cultures. Explore the details of adherent cells, suspension cells, and the process of cell passage.

Lysosome: Definition & Function

10. Lysosome: Definition & Function

Lysosomes are organelles with digestive enzymes and help in the removal of waste from the blood. Learn about the definition of a lysosome and its structure and characteristics, as well as its different functions in various organisms.

Prions: Definition & Examples

11. Prions: Definition & Examples

In this lesson, discover the real life, disease-causing yet non-living prions. We will discuss their interesting history and their real life dangers, as well as the different types of diseases caused by prions.

Transformed Cells: Definition & Characteristics

12. Transformed Cells: Definition & Characteristics

Transformed cells occur when cells take in foreign DNA and express the genes encoded on that DNA, giving the cell new characteristics. Learn the definition and characteristics of transformed cells, explore how they work, and discover how to force cell transformation via techniques like electroporation and gene guns.

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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