About This Chapter
Cell Structure & Function- Chapter Summary
These lessons will address significant information related to cell structure and function. You will review the different processes that a cell carries out in order to function properly. Topics that will be covered include:
- Plasma membrane
- Phospholipid bilayer
- Fluid mosaic model
- Passive and active transport
- Endocytosis vs exocytosis
- Protein synthesis
The lessons in this chapter come in the form of brief videos that present the material to you in a clear and concise way. Each lesson is paired with a full transcript that includes terminology that you should be familiar with in bold. Once you have completed the lesson, you can take the short lesson quiz to test yourself on everything you have just studied.
1. The Cell: Structure & Function
The cell is a small, but complex structure. Take a look inside the outer plasma membrane of a cell and discover the functions of some common cellular components, including the nucleus, endoplasmic reticulum, Golgi apparatus and mitochondria, in this lesson.
2. Plasma Membrane of a Cell: Definition, Function & Structure
Cells are made of many crucial parts that work together and perform specific functions. In this lesson, you will learn about the plasma membrane of a cell to gain an understanding of its structure and function.
3. What is Cytoplasm? - Definition & Functions
Did you know your cells are filled with a thick fluid? Cytoplasm is an important part of your cells and serves several functions that are key to cellular health and productivity.
4. 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?
5. 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.
6. 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.
7. 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!
8. 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.
9. Protein Synthesis in Cells: Process & Importance
The DNA of the cell contains the blueprints for all the proteins in the body. These blueprints become proteins with the help of RNA and ribosomes. Follow along with this lesson to learn about the two major phases of protein synthesis: transcription and translation.
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Other chapters within the GACE Science (524): Practice & Study Guide course
- Basics of Scientific Inquiry
- Historical Developments in Science
- Scientific Data Collection & Manipulation
- Data & Statistics
- Energy Resources
- Science & Technology in Daily Life
- Science & Public Health Issues
- Organization of Matter
- Atoms & Moles
- Energy & Matter
- Chemical Bonding
- The Periodic Table
- Chemical Reactions
- Equilibrium & Common Chemical Reactions
- Dimensions of Motion in Physics
- Newton's Laws in Physics
- Force & Pressure
- Waves, Sound, and Light
- Cell Growth & The Process of Cell Division
- Biochemistry of Life
- Evolution: Theories and Principles
- Organism Characteristics
- Introduction to Plant Biology
- Human Anatomy
- Population & The Environment
- Atmospheric Sciences
- Understanding Ecosystems
- Minerals and Rocks
- Weathering and Erosion
- Earth's Spheres and Internal Structure
- Plate Tectonics
- Geologic Time
- Water Balance
- Glaciers, Lakes, Rivers & Other Bodies of Water
- The Atmosphere of Earth
- Weather and Storms
- The Solar System: Layout, Formation & Dating
- The Earth, Sky, and Moon
- The Moon: Formation & Phases
- Origins & Theories of the Universe
- GACE Science Flashcards
- Laboratory Equipment and Procedures