Phospholipids, are a class of lipids whose molecule has a hydrophilic "head" containing a phosphate group and two hydrophobic "tails" derived from fatty acids, joined by an alcohol residue (usually a glycerol molecule). Marine phospholipids typically have omega-3 fatty acids EPA and DHA integrated as part of the phospholipid molecule. The phosphate group can be modified with simple organic molecules such as choline, ethanolamine or serine. Phospholipids are a key component of all cell membranes. They can form lipid bilayers because of their amphiphilic characteristic. In eukaryotes, cell membranes also contain another class of lipid, sterol, interspersed among the phospholipids. The combination provides fluidity in two dimensions combined with mechanical strength against rupture. Purified phospholipids are produced commercially and have found applications in nanotechnology and materials science. The first phospholipid identified in 1847 as such in biological tissues was lecithin, or phosphatidylcholine, in the egg yolk of chickens by the French chemist and pharmacist Theodore Nicolas Gobley. (Wikipedia).
A Level Biology Revision "Phospholipids and Cholesterol"
In this video, we look at phospholipids. First we explore the structure of phospholipids and how they are different from triglycerides. We then explore how the structure of phospholipids affects their role in cells. Finally, for students following the OCR specification, we explore the stru
From playlist A Level Biology Biological Molecules
Acids and Bases - Short Revision || CBSE Science || || Infinity Learn Class 9&10
Acids and bases are two types of substances that are fundamental to chemistry. An acid is a substance that donates protons (hydrogen ions, H+) to a solution, while a base is a substance that accepts protons or donates hydroxide ions (OH-) to a solution. There are several ways to define and
From playlist Shorts
What Are Allotropes of Metalloids and Metals | Properties of Matter | Chemistry | FuseSchool
What Are Allotropes of Metalloids and Metals Learn the basics about allotropes of metalloids and metals, as a part of the overall properties of matter topic. An allotrope is basically a different form of the same element, each with distinct physical and chemical properties. For example
From playlist CHEMISTRY
A quick definition of pH. Chem Fairy: Louise McCartney Director: Michael Harrison Written and Produced by Kimberly Hatch Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patreon.com/socratica ► Make a one-time PayPal donation: https://www.paypal.me/so
From playlist Chemistry glossary
In this video phenol is synthesized from salicylic acid. I followed the procedure that I found here: http://www.sciencemadness.org/talk/viewthread.php?tid=27617 Nile talks about lab safety: https://youtu.be/ftACSEJ6DZA ------------------------------------------- NileRed Store: https:/
From playlist Syntheses and Demonstrations
Aspirin (Acetylsalicylic Acid)
Now that we understand the basics regarding NSAIDs, let's dive into a few specific drugs from this class. First up, aspirin. This drug has been around for centuries, but now with a modern understanding of chemistry and biochemistry, we are able to understand its precise structure and mecha
From playlist Pharmacology
Acetaminophen/Paracetamol (Tylenol)
Acetaminophen, more commonly known by brand names such as Tylenol, is not a true NSAID, as it does not have anti-inflammatory properties. However, it is commonly discussed alongside NSAIDs as it has similar antipyretic and analgesic properties. Although its mechanism of action is not well-
From playlist Pharmacology
The Phospholipid Brain-DHA Advantage
Dr. Rhonda Patrick discusses the differences between different forms of DHA in terms of bioavailability and transport into different cells. She talks about why a specific type of DHA (DHA in phosphatidylcholine) is more readily transported into the brain because it forms DHA-lysophsophatid
From playlist Just Me
This biology video tutorial provides a basic introduction into the cell membrane. It contains plenty of examples and practice problems. Here is a list of topics: 0:00 - Intro To The Cell Membrane 0:09 - The Fluid Mosaic Model 0:58 - The Phospholipid Bilayer 2:00 - The Amphipathic Nature
From playlist Biology
Structure Of The Cell Surface Membrane (Fluid Mosaic Model) | A Level & SL IB Biology
Hazel talks through the structure of the cell surface membrane, including the role and structure of phospholipids, glycolipids, glycoproteins, cholesterol, carrier proteins and channel proteins. She also answers an A Level biology past paper question to give you an idea of how this topic m
From playlist A Level & IB Biology //
Fluid Mosaic Model of the Plasma Membrane - Phospholipid Bilayer
This biology video tutorial discusses the fluid mosaic model of the plasma membrane. The cell membrane consist of a phospholipid bilayer as well as integral proteins, peripheral proteins, surface proteins, glycoproteins, glycolipids, and cholesterol just to name a few. My Website: https
From playlist Biology
A Level Biology Revision "The Fluid-Mosaic Model of Membrane Structure"
In this video, we start looking at the structure of cell membranes. First we explore the structure of phospholipids and the phospholipid bilayer. We then explore the role of cholesterol in membranes. Finally, we look at what is meant by the fluid-mosaic model of membrane structure. This v
From playlist A Level Biology "Cell Membranes and Movement of Substances"
Cell membrane fluidity | Cells | MCAT | Khan Academy
Learn how the phospholipids in the cell membrane maintain membrane fluidity. By William Tsai. Created by William Tsai. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/cells/cell-membrane-overview/v/membrane-dynamics?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed
From playlist Cells | MCAT | Khan Academy
015 - Cell Membranes Paul Andersen explains how cells are selectively permeable with the help of their cell membrane. The main constituents of the cell membrane, including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins are included. The fluid mosaic model is also i
From playlist AP Biology Video Essentials
Watch more videos on http://www.brightstorm.com/science/biology/ SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► ht
From playlist Biology
Phospholipid structure | Cells | MCAT | Khan Academy
Learn about the detailed structure of phospholipids in the cell membrane. By Willaim Tsai. Created by William Tsai. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/cells/cell-membrane-overview/v/cell-membrane-overview-fluid-mosaic-model?utm_source=YT&utm_medium=Desc&utm_
From playlist Cells | MCAT | Khan Academy
What Is Thermosetting and Thermosoftening Polymers | Organic Chemistry | Chemistry | FuseSchool
Learn the basics about thermosetting and thermosoftening polymers, when learning about polymers as a part of organic chemistry. A polymer is a macromolecule made of many monomers, or repeating units. The properties of these polymers depend on a variety of factors – the monomer unit, the
From playlist CHEMISTRY
Models Of The Cell Surface Membrane | A Level & SL IB Biology
Hazel looks at how ideas about the structure of the plasma membrane have changed with scientific discoveries, and why we now believe the fluid mosaic model is correct model for the structure of the cell surface membrane. These videos are designed to help with your A level and SL IB biolog
From playlist A Level & IB Biology //