About This Chapter
Introduction to Cell Biology - Chapter Summary
This chapter serves as an introduction to cell biology. Presented in easily digestible sections, this chapter ensures you understand the basic attributes of cells by including clear definitions and explanations of their processes. Explore the structure of the cell, its actions and processes, and the way cells interact with each other. Key concepts of this chapter include:
- Phosphobilipid layer
- The cell membrane
- Active and passive transport
- Endocytosis and exocytosis
- Structure of the nucleus
- The ribosome
- The endomembrane system
- The cytoskeleton
- Mitochondria structure
- Chloroplast structure
- Plant cell structures
You can study the fundamentals of cell biology with Study.com. We provide engaging study materials to help you understand key elements of the topic. Well-qualified instructors developed these lessons, and they can give expert answers to your questions. If you'd like to learn even more, look over the transcripts and research the bold terms you'll find throughout.
1. How a Phospholipid Bilayer Is Both Hydrophobic and Hydrophilic
In this lesson, we will learn what gives phospholipids a dual personality. How can this molecule be both hydrophobic and hydrophilic, and why is this important to a cell?
2. The Fluid Mosaic Model of the Cell Membrane
In this lesson, we will discuss the components of the cell membrane and why the fluid mosaic model paints the best picture of its structure. We'll learn about the roles of the phospholipid bilayer, cholesterol, proteins and carbohydrates.
3. Passive Transport in Cells: Simple and Facilitated Diffusion & Osmosis
A cell membrane is selectively permeable - not permeable to everything. In this lesson, we'll talk about methods of passive transport along a concentration gradient, including simple and facilitated diffusion and osmosis.
4. Active Transport in Cells: Definition & Examples
In this lesson, we'll learn how substances are transported across the cell membrane against the concentration gradient. This might seem like an uphill battle for the cell, but all it takes is a little chemical energy and a few integral membrane proteins to kick off some active transport!
5. Endocytosis and Exocytosis Across the Cell Membrane
In this lesson, we'll discover how some cells can eat, drink, and digest their dinner through the process of endocytosis and a structure called the lysosome. In addition, we'll learn how a cell can throw out the leftovers across the cell membrane during exocytosis.
6. Structure of the Nucleus: Nucleolus, Nuclear Membrane, and Nuclear Pores
In this lesson, we'll discuss the organization and importance of the nucleus in your cells. This is the membrane-bound structure responsible for containing all the genetic material essential to making you who you are.
7. The Ribosome: Structure, Function and Location
The ribosome is the cellular structure responsible for decoding your DNA. In this lesson, we'll learn about ribosome structure, function and location - characteristics that make it a very good genetic translator.
8. The Endomembrane System: Functions & Components
In this lesson, we'll learn about the endomembrane system, which consists of the endoplasmic reticulum and the Golgi apparatus. This system is important in making, packaging, and shipping all sorts of goodies for the cell to use!
9. The Cytoskeleton: Microtubules and Microfilaments
In this lesson, we'll learn about the cytoskeleton of your cells. This network of microtubules, intermediate filaments, and microfilaments helps different types of cells maintain a unique set of characteristics, including shape and movement.
10. Mitochondria Structure: Cristae, Matrix and Inner & Outer Membrane
If you want to make it through the day, you're going to need some energy. In this lesson, we'll learn about the organelle that supplies this energy, the mitochondrion, and why this cell structure appreciates the time you took to eat breakfast this morning!
11. Chloroplast Structure: Chlorophyll, Stroma, Thylakoid, and Grana
In this lesson, we'll explore the parts of the chloroplast, such as the thylakoids and stroma, that make a chloroplast the perfect place for conducting photosynthesis in plant cells.
12. Plant Cell Structures: The Cell Wall and Central Vacuole
In this lesson, we'll talk about some of the things that make plant cells so different from our cells. In addition to being mean, green photosynthesizing machines, plant cells have cell walls and central vacuoles to make them unique!
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Other chapters within the STAAR Biology: Test Prep & Practice course
- Introduction to Organic Chemistry
- Prokaryotic & Eukaryotic Cells
- Virus Structure & Life Cycle
- How Enzymes Work
- Requirements of Biological Systems
- Cell Communication
- Basics of Metabolic Biochemistry
- Overview of Cell Division
- Basics of DNA & RNA
- Process of DNA Replication
- The Transcription and Translation Process
- Plant Biology
- Plant Reproduction and Growth
- Physiology I: The Circulatory, Respiratory, Digestive, Excretory, and Musculoskeletal Systems
- The Nervous, Immune, and Endocrine Systems
- Animal Reproduction and Development
- Heredity and Genetics
- Gene Mutations
- DNA and Technology
- The Origin and History of Life On Earth
- The Theory of Evolution
- Natural and Artificial Selection
- Population Evolution
- Organism Classification & Phylogenesis
- Ecological Systems and the Environment
- Ecological Relationships and Species Populations
- Humans and the Environment
- Lab Safety Equipment and Procedures
- Methods of Scientific Research
- Analyzing and Interpreting Scientific Data
- Famous Biologists and Their Impact on Society
- About the STARR Tests
- STAAR Biology Flashcards