- published: 15 Jul 2015
- views: 82257
Lipids are a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others. The main biological functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology.
Lipids may be broadly defined as hydrophobic or amphiphilic small molecules; the amphiphilic nature of some lipids allows them to form structures such as vesicles, multilamellar/unilamellar liposomes, or membranes in an aqueous environment. Biological lipids originate entirely or in part from two distinct types of biochemical subunits or "building-blocks": ketoacyl and isoprene groups. Using this approach, lipids may be divided into eight categories: fatty acids, glycerolipids, glycerophospholipids, sphingolipids, saccharolipids, and polyketides (derived from condensation of ketoacyl subunits); and sterol lipids and prenol lipids (derived from condensation of isoprene subunits).
Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with the aim of providing a free, world-class education for anyone, anywhere. The organization produces short lectures in the form of YouTube videos. In addition to micro lectures, the organization's website features practice exercises and tools for educators. All resources are available for free to anyone around the world. The main language of the website is English, but the content is also available in other languages.
The founder of the organization, Salman Khan, was born in New Orleans, Louisiana, United States to immigrant parents from Bangladesh and India. After earning three degrees from the Massachusetts Institute of Technology (a BS in mathematics, a BS in electrical engineering and computer science, and an MEng in electrical engineering and computer science), he pursued an MBA from Harvard Business School.
In late 2004, Khan began tutoring his cousin Nadia who needed help with math using Yahoo!'s Doodle notepad.When other relatives and friends sought similar help, he decided that it would be more practical to distribute the tutorials on YouTube. The videos' popularity and the testimonials of appreciative students prompted Khan to quit his job in finance as a hedge fund analyst at Connective Capital Management in 2009, and focus on the tutorials (then released under the moniker "Khan Academy") full-time.
Types of lipids including fats, waxes, steroids and phospholipids. Watch the next lesson: https://www.khanacademy.org/science/biology/macromolecules/nucleic-acids/v/dna-deoxyribonucleic-acid?utm_source=YT&utm;_medium=Desc&utm;_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/macromolecules/lipids/v/saturated-fats-unsaturated-fats-and-trans-fats?utm_source=YT&utm;_medium=Desc&utm;_campaign=biology Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year colle...
In this video Paul Andersen describes the lipids (of the fats). He explains how they are an important source of energy but are also required to cell membranes. He explains how the hydrocarbon tails in triglycerides contain energy available for life. He also explains how phospholipids construct, and cholesterol molecules main the cell membrane. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
This short video gives an overview of the four basic groups of lipids: triglycerides, phospholipids, steroids, and waxes.
Have any doubts? Follow this link http://avanti.in/learn/signup and ask from the experts. It’s free. Class 11 Biology – Biomolecules A question that must arise in your mind is, are all living organisms made of same elements and compounds? The answer is yes. All the living and non-living are made of same types of compounds and elements but the compositions are different. How these difference in compositions and arrangements can make an organism living. What are these molecules that carry out the life processes. We’ll learn about them in this chapter. We’ll learn 1. Introduction to Biomolecules. 2. What are Carbohydrates? 3. What are Proteins? 4. Lipids. 5. Nucleic Acids – DNA – Deoxy-Ribonucleic Acid. 6. RNA – Ribonucleic acid. 7. What are Enzymes? 8. Metabolism. AvantiEd- Learn more about...
Honors Biology - Introduction to lipids, including fatty acids, triglycerides, saturated, unsaturated, phospholipids, steroids and cholesterol.
Lipids Digestion and Absorption
Video lainnya : - Komposisi Kimia Tubuh : http://youtu.be/Kk7vmGlpL2Q - Biomolekul 1. Karbohidrat : http://youtu.be/QhPKaDJ_Fr8 - Biomolekul 3. Protein : http://youtu.be/AVTBYdDfroo - Biomolekul 4. Asam Nukleat : http://youtu.be/aX04o7hKhOw Created by Rian Hari Suharto TWITTER: http://www.twitter.com/RianHS Music : On the Sunny Side by Matthias Harris | http://www.melodyloops.com/
Lipids are one of the four major organic compounds. Lipid molecules are made up of three fatty acid chains attached to a glycerol molecule. They play roles in energy storage, insulation and protection. Phospholipid molecules are made up of two fatty acid chains attached to a glycerol, phosphate and ethanolamine. Phospholipids are the major component of the cell membrane. For more Biology video lessons check out www.anytimeeducation.com
(For a more elaborate explanation in English, please see below.) Wie arbeiten Biophysiker? Mit welchen Mitteln untersuchen Sie die physikalische Grundlage biologischer Strukturen und Prozesse? Wie bestimmen diese Wissenschaftler einzelne Parameter in hochkomplexen Systemen wie den biologischen Zellen? Ganz einfach: Sie benutzen Modellsysteme. Eine einzelne Schicht aus Lipiden ist ein solches Modellsystem. Lipide sind dabei solche Fettmoleküle, die der Grundbaustein für biologische Membranen sind, welche wiederum eine jede Zelle und deren Kompartimente (Zellkern, Mitochondrien, etc.) begrenzen. Diese Membranen bestehen aus einer Lipiddoppelschicht, in der weitere Komponenten eingelagert sein können. In einem vereinfachten Modellsystem spreitet man die Lipidmoleküle auf einer Wasseroberfläc...
Just a test to get up to speed with the physical renderer in Cinema 4D 13. Wondering if it is viable for real animation work. The kind with deadlines. I am currently getting ~8 min per frame rendering at SD widescreen. Only rendered a short sequence (130 frames) so I looped it a few times. SSS was turned OFF as it was taking ages for the irradiance thing to cache (this was with optimized SSS settings). I have 1 bounce for self illumination, AO on, motion blur and DOF on. At the moment it looks like I still have some more optimization options to explore. Render times feel too heavy at the moment for long-form medical animation (usually between 4 to 10 minutes of HD animation) but maybe Ok for short shots for spots and such. We'll see.
Motion graphic video I made for a sleep enhancing milk product.
A montage of CG visuals created for the launch of TIGI's Hair Reborn product range, produced by Fraktiv. The visuals were created to support a traditional interview, but here we've omitted the interview and added some descriptions to explain each visual's context. Music (montage use only): EATSGODS by GLD MTN
We admit we're drawn to the Chemex for its beautiful design, but it's the clarity of the finished product that has kept this brewing method ahead of the pack since 1941. The brainchild of German inventor Dr. Peter Schlumbohm, the Chemex pot's design has remained unchanged for the past 70 years. The secret to the clarity in the cup is the heavy paper filter, which traps lipids and insoluble solids that contribute to the "chewy" quality, or mouth feel, evident in other brewing methods. The resulting cup is light, bright and delicately nuanced.
This time-lapse video begins with a batch of algae that has just gone through OriginOil’s Single-Step Extraction™ process. In less than an hour, the water and biomass separate spontaneously and the microscopic cells are broken, releasing lipids. Unlike conventional systems, no chemicals or heavy machinery are used in this single-step process, and no initial dewatering is required. http://www.OriginOil.com.
Chris Masterjohn, Ph.D. has just completed his Ph.D. at the University of Connecticut, where his doctoral research focused on the role of oxidative stress in regulating metabolism of methylglyoxal, a major precursor of advanced glycation end products. He created and maintains Cholesterol-And-Health.Com, where he publishes his blog, The Daily Lipid. http://blog.cholesterol-and-health.com/ http://www.westonaprice.org/blogs/cmasterjohn/ Abstract: The role of carbohydrate in health and disease remains controversial in the ancestral health community. Numerous groups of foragers, pastoralists, and agriculturalists have been found free of the so-called “diseases of civilization” while subsisting on diets rich in carbohydrate, yet clinical trials have shown that low-carbohydrate diets can h...
The research teams of Dr Joanne Elliott and Dr Adam Squires in the Department of Chemistry at the University of Reading have developed and patented a method of making ultra-high surface area electrode coatings via electrochemical deposition, using a nanostructured lipid surfactant coating. The experiments were carried out by Samina Akbar for her PhD. This video was developed for the University of Reading by motion graphics artist and designer Dean Smith http://www.dean-s.com/ as part of the Design Council's 'Innovate for Universities' programme (Design Associate: Ian Ferris) This has been published in the journal Advanced Materials DOI: 10.1002/adma.201203395
ABSTRACT: When researchers first produced atherosclerosis in rabbits by feeding them cholesterol, they argued that atherosclerosis was of an "infiltrative" rather than "degenerative" character. That is, cholesterol was so abundant that it infiltrated the blood vessel wall. Over the decades it has become clear, however, that atherosclerosis is an attempt to protect the lining of the blood vessel from toxic waste generated by the degeneration of vulnerable lipids. The process of molecular degeneration can be likened to breaking glass, and the formation of atherosclerosis can be likened to the process of cleaning up the broken shards. The danger is not gone forever, though, because these toxic waste management sites (or barrels of broken glass) can eventually burst and spill their contents in...
Nos vimos de nuevo, pensaste en volver a mí.
Me tienes contigo, no sabes lo que aprendí.
A llorar sin lágrimas
a no creer en los sueños
a no envolverme en tus besos, ni en tus caricias
porque todas son mentiras
Y te quito las ropas
y yo entro en tu cuerpo
y juntando las almas, tu cuerpo y el mío
se envuelven en libido
Terminó tu sueño
de ser la dueña de mí
Empieza tu infierno
tu premio a lo que aprendí
No quiero verte jamás con él
el odio en mi alma se pone de pie
con un arma en la mano no sé que iré a hacer.