About This Chapter
Who's It For:
Anyone who needs help learning or mastering cell transport material will benefit from the lessons in this chapter. There is no faster or easier way to learn about cell transport. Among those who would benefit are:
- Students who have fallen behind in understanding cell transport
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning biology (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about cell transport
- Students who struggle to understand their teachers
- Students who attend schools without extra biology learning resources
How It Works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Cell Transport chapter exam.
Why It Works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Cell Transport chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any cell transport question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students Will Review:
This chapter helps students review the concepts in a cell transport unit of a standard cell biology course. Topics covered include:
- Feedback systems
- Osmosis, saturation, and diffusion
- Solutions, solvents and solutes
- The phospholipid bilayer
- Fluid mosaic model
- Passive and active transport in cells
- Endocytosis and exocytosis
1. Using Feedback Systems to Regulate Growth, Reproduction & Dynamic Homeostasis
In order to maintain specific internal conditions, organisms use feedback mechanisms. Feedback is essential to the regulation of internal environments, which allows for proper biological functioning.
2. Osmosis, Diffusion and Saturation
The cells in our bodies are in constant flux through the processes of osmosis and diffusion. Learn about how saturation levels force change, and why we're lucky they do.
3. Solutions, Solutes, and Solvents
Oh no! Your friend Ben just drank chili oil on a dare, and now his mouth is burning. Should he drink the ice water or vegetable oil to cool his mouth? Quick. Watch this lesson if you aren't sure.
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.
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Other chapters within the Cell Biology Study Guide course
- Cell Theory and Living Organisms
- Parts of a Cell
- Cell Communication
- Plant Cells: Structure, Function and Metabolic Energy
- Cellular Respiration
- Stages of Cell Division
- Cells and Reproduction
- DNA: The Basis of Inheritance
- Protein Synthesis: Transcription and Translation
- Biochemistry of Major Macromolecules and Enzyme Function
- Bacteria and Viruses
- Levels of Cell Organization and Specialization