Catalyst University
Biotechniques | Principles of SDS-PAGE (Protein Separation)
As always, the steps of an SDS-PAGE will depend on your specific lab and protocol. In this video, we will explore the general theory of separating and visualizing protein by SDS-PAGE, a technique very similar to DNA agarose gel...
A Capella Science
CRISPR-Cas9 (Chordettes Parody)
The science and ethics of the revolutionary gene-editing system CRISPR-Cas9, explained in a biology rendition of The Chordettes' "Mr. Sandman"
Catalyst University
The Mechanism of Combination Birth Control
In this video, we cover the physiological mechanism of combination birth controls containing both progestogen and estrogen analogs.
Catalyst University
Peptidyl Transferase/Ribosome Physiology, Biochemistry, and Mechanism
Peptidyl Transferase/Ribosome Physiology, Biochemistry, and Mechanism
NASA
Houston We Have a Podcast: Astronaut and Microbiologist
Kate Rubins, NASA astronaut and flight engineer for the upcoming Expedition 64 mission on the International Space Station, details her passion for science, and her previous experience on the station, and her anticipation of conducting...
Catalyst University
Biotechniques | Principles of Gel Extraction
As always, the steps of a Gel Extraction depend on your specific lab and protocol. This vide will give you a general idea regarding when one would utilize a gel extraction and the general steps.
Food Farmer Earth
Alan Kapuler: Man of Science, Ideas, and Humanity -2
Alan Kapuler is a well-educated man, both in a formal academic sense, and also from a lifetime of hands-on work as an organic plant breeder: planting, breeding, and cataloging his vast collection of open pollinated seeds.
Catalyst University
Digestion, Absorption, & Handling of Vitamin B12 (Cobalamin)
B12 (cobalamin) is a water soluble B vitamin that requires special handling upon ingesting and subsequent absorption and transport. Here, we discuss the general pathway.
Catalyst University
What are the Physiological Mechanisms of Dietary Fiber?
We have all heard that dietary fiber is necessary for good GI and overall health. Human intestinal cells do not have enzymes to break down fiber, so how could this be? Here we will discuss the role of bacteria in fiber metabolism and...
Catalyst University
The Biosynthesis of Ketone Bodies | Pathway & Explanation
This video explains how the liver manufactures the three ketone bodies (beta-hydroxybutyrate, acetoacetate, and acetone). We will explore the biosynthetic pathway here.
Catalyst University
The DNA Damage Response | Repair the DNA or Commit Apoptosis?
DNA damage is inevitable. But what happens inside the nucleus when the DNA becomes damaged? Here we discuss the biochemical processes that occur and how the cell decides whether to attempt DNA repair or undergo apoptosis.
Catalyst University
Purpose & Organization of the Lac Operon
This video discusses in detail the purpose, functions, and organization of the Lac Operon.
Catalyst University
Leptin Function, Signaling via the LepR, & Overall Physiological Effects
1) What is the function of Leptin in the body? 2) How is Leptin's release affected by fatty body mass? 3) How does Leptin signal through the Leptin receptor (LepR)?
Catalyst University
The Central Dogma of Biology | Transcription & Translation: The Basics
This video explores the Central Dogma of Molecular Biology (Transcription & Translation) at an introductory or general biology level.
Catalyst University
Genetics | X-chromosome Inactivation, Barr Bodies, and the Calico Cat
X-chromosome inactivation in various sex chromosome genotypes (XX, XY, XXY, XXX, XO) and resulting Barr bodies; the Lyon hypothesis; the proposed mechanism of Calico cats
Professor Dave Explains
Gel Electrophoresis
How exactly do molecular biologists figure out all this stuff we have been learning? How do they do science with huge molecules like DNA and proteins? How can we gather empirical data about such molecules? Let's take a look at one...
Zach Star
7 Tips for Life Science Majors
This video will go over the top 7 tips to being a successful student in the life sciences majors. 1. Maintain a 3.0 GPA or Higher. 2. Join a club on campus related to your science major. 3. Build your career network as soon as possible....
Curated Video
2 Americans, 1 Israeli win Nobel chemistry prize, announcement
1. Various exteriors of Royal Swedish Academy of Sciences building
2. Nobel prize committee members entering news conference
3. Cutaway of cameras
4. SOUNDBITE (English) Gunnar Oquist, Secretary of Royal Swedish Academy of Sciences:...
Curated Video
Argentine Health Ministry announces method for rapid diagnosis of Ebola
Health officials in Argentina claim to have developed a method for detecting the Ebola virus within 24 hours, saying it's the first in Latin America.
The Argentine Ministry of Health said in a press release that the protocol has been...
Curated Video
A molecule has been found that could block the transmission of HIV ++REFEED++
Khayalitsha township outside Cape Town, South Africa - recent
1. Wide shot Khayalitsha township outside Cape Town
2. Mid shot Kunene Aunt Mashudu walking to beading centre (she is a HIV positive mother in the programme)
3. Various shots...
Curated Video
Discovery of Queen's Hasheptsut's mummy, presser
Cairo - 27 June, 2007
1. Wide of exterior of Egyptian Museum in Cairo
Cairo - 27 June, 2007
2. Close-up of head of mummy of Queen Hatshepsut
Cairo - 27 June, 2007
3. Pull-out from close-up of head of mummy of Queen Hatshepsut
4....
TED-Ed
Are You a Body with a Mind or a Mind with a Body?
Do you think, therefore you are? Or are you therefore you think? Are the mind and the body one or separate? Introduce young philosophers (and science fiction fans) to the mind/body problem with a video that is sure to fascinate viewers.