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Explain how transport across the plasma membrane is related to the homeostasis of the cell. Why can generally only very small, hydrophobic molecules across the cell membrane by simple diffusion? Explain how facilitated diffusion assists in osmosis in cells.
Cell Membrane and Cellular Transport Concept Map, Schemes and Mind Maps for Biology. Partial preview of the text. Download Cell Membrane and Cellular Transport Concept Map and more Biology Schemes and Mind Maps in PDF only on Docsity! *Guidelines: Create a concept map following the guidelines we used as a class: 1.
The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. The movement of materials into and out of the cell is called membrane transport. This activity will help you identify the different mechanisms of membrane transport.
Cell Transport Concept Map.notebook 1 November 24, 2015 Cell Transport Active Transport Passive Transport Goes with the concentration gradient Goes against the concentration gradient Requires energy Does NOT require energy Diffusion Osmosis Diffusion of water across a membrane Movement of substances from
- Overview
- About this unit
- The plasma membrane
- Diffusion and osmosis
- Passive transport
- Active transport
- Bulk transport
About this unit
This unit is part of the Biology library. Browse videos, articles, and exercises by topic.
The plasma membrane
Learn about the amazing and versatile barrier that surrounds all of your cells: the plasma membrane!
This unit is part of the Biology library. Browse videos, articles, and exercises by topic.
Learn about the amazing and versatile barrier that surrounds all of your cells: the plasma membrane!
Ever wonder why plants wilt if you don't water them? Find out here, and learn more about the basic principles of probability that underlie movement of water and other molecules in biological systems.
Sometimes it pays to go with the flow! Learn about passive transport mechanisms, in which molecules travel across the plasma membrane by moving down their concentration gradients (no energy expenditure required).
In active transport, the cell has to pay (often, in the form of ATP) to move molecules against their gradients. Learn more about the amazing protein machines that make this possible.
Macrophages (specialized immune cells) in your body can "eat" bacteria, pulling them into the cell and digesting them. Learn how they accomplish this feat, and how cells transport other large molecules across the plasma membrane.
Describe the functions of phospholipids, proteins, and carbohydrates in membranes. Discuss membrane fluidity. A cell’s plasma membrane defines the cell, outlines its borders, and determines the nature of its interaction with its environment (see Table 8.1 for a summary).
People also ask
What is cellular membrane transport?
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How do small substances pass through a plasma membrane?
What are the functions of cell membranes?
Explain how the structure of cell membranes leads to its various functions including selective permeability and transport, and cell signaling.
