About This Chapter
Cellular Signals - Chapter Summary
Take a peek at this chapter as you review the process of cellular signals. Our instructors take special care to elaborate on key concepts, including an explanation of how cells recognize when to perform various activities and processes. All of the major terms related to cellular signals will be clearly defined within the lessons, making memorizing the terms that much easier to accomplish.
You will also go through a step-by-step guide that outlines the entire process and purpose of chemical signals being passed between cells. Our instructors show detailed diagrams and examples to help you further comprehend these topics. By taking the time to go through the chapter, you will be ready to:
- Describe how cell communication happens
- Identify the concept of signaling molecules
- Define the different types of cytokines
- Point out how signal reception and transduction works in cells
- Explain the different cellular responses to these signals
- Show the process of signal transduction in plants
- Compare hydrophobic and hydrophilic signals
- Outline the process of apoptosis
- Examine the relationship between cancer and apoptosis in the cell cycle
A fun and fast way to check how well you understand these biology concepts includes answering our lesson quizzes. Every lesson in this chapter comes complete with a short, multiple-choice quiz. Quiz worksheets can also be printed to add to your notes, or you can use the worksheets as real-life practice for upcoming exams.
1. An Overview of Cell Communication
Cellular communication is an important process that allows cells to pass signals to one another. In this video lesson, you will be introduced to the process of cellular communication, identifying the three steps of cellular signaling in organisms.
2. Signaling Molecules: Definition & Concept
How do cells know which processes and activities to perform? In this lesson, you will learn about the ways that cells receive information and how that information gets translated into a message that the cell can understand.
3. What Are Cytokines? - Definition, Types & Function
Cytokines are a group of proteins made by the immune system that act as chemical messengers. Learn about the functions of different cytokines, including chemokines, interferons, interleukins, lymphokines and tumor necrosis factor.
4. Signal Reception in Cells
Our cells 'talk' to each other all the time through chemical signals. The first step of this process, reception, is a critical component. In this video lesson you will learn about this step in cell communication as well as understand its overall importance.
5. Transduction in Cells
Once a cellular signal is received, a chain of events begins that helps the receiving cell decode the signal. In this video lesson you will learn about this second step of cellular communication and its importance to the overall process.
6. Cellular Responses to Signals
After reception of a signaling molecule and movement of that signal through transduction, the cell can now respond. There are different types of cellular response as well as different mechanisms the cell uses to make this process more efficient.
7. Signal Transduction in Plants: From Reception to Response
Why are plants so sensitive to environmental changes? In this lesson, we explore signal transduction in plants and see how this helps plants adapt to the world around them.
8. Signal Transduction for Hydrophilic & Hydrophobic Signals
In this lesson we'll review signal transduction in cells. We'll examine the different between hydrophilic and hydrophobic signals and look at some examples such as isulin and steroid hormones.
9. What is Apoptosis? - Definition, Pathway & Examples
This lesson will discuss apoptosis, giving a definition and overview of importance. It will also delve into a few of the pathways by which apoptosis occurs and give some examples of when apoptosis is induced.
10. Apoptosis in the Cell Cycle & Cancer
Learn about natural cell death, called apoptosis, in normal cells and cancer cells, as well as treatments that are being developed to treat cancer by controlling apoptosis.
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Other chapters within the VCE Biology: Exam Prep & Study Guide course
- Developing a Scientific Investigation
- Ethical Considerations in Scientific Investigations
- Collecting Scientific Data
- Processing Experimental Results
- Communicating Scientific Ideas
- Cell Size, Structure & Function
- The Cell Membrane
- Stages of the Cell Cycle
- Cell Growth & Differentiation
- Energy Transformations in Living Things
- Functioning Systems of Living Things
- Adaptation & Regulation in Living Things
- Understanding Biodiversity
- Ecosystem Relationships & Populations
- Asexual & Sexual Reproduction
- Genomes, Genes & Alleles
- Chromosomes & Chromosome Disorders
- Genotypes & Phenotypes
- Pedigrees & Genetic Inheritence
- Cellular Membranes & Structures
- Nucleic Acids & Proteins
- Gene Structure & Regulation
- Understanding Enzymes
- Photosynthesis Overview
- Cellular Respiration Overview
- Antigens & Immune Response
- Immunity & the Immune System
- Genetics & Populations
- Biodiversity Over Time
- Relatedness Between Species
- Human Evolution
- DNA Manipulation
- Biological Knowledge & Society
- VCE Biology Flashcards