SciShow
Cannibalism, Zombies & Suicidal Cells: The Latest In Cancer Research
Hank shares some developments in cancer research, from new insights into the behavior of zombie cancer cells, to a new method that uses nanotechnology to kill cancer from within.
Curated Video
Yoshinori Ohsumi wins medicine Nobel Prize
Japanese scientist Yoshinori Ohsumi was awarded this year's Nobel Prize in medicine on Monday for discoveries related to the degrading and recycling of cellular components.The Karolinska Institute honoured Ohsumi for "brilliant...
Curated Video
Yoshinori Ohsumi wins medicine Nobel Prize
Japanese scientist Yoshinori Ohsumi was awarded this year's Nobel Prize in medicine on Monday for discoveries on how cells break down and recycle parts of themselves in an internal rubbish disposal process.The Karolinska Institute...
SciShow
The Chromosomes Hiding in Specks of Lint
Tiny versions of chromosomes show up in things like birds, reptiles, and amphibians. These mysterious lint-like flecks may be the building blocks for our entire genomes.
Crash Course
Mitosis: Splitting Up is Complicated - Crash Course Biology
Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies.
Catalyst University
Bile Acid Biosynthesis 1: Conversion of Cholesterol to Secondary Bile Acids
Bile Acid Biosynthesis 1: Conversion of Cholesterol to Secondary Bile Acids
Independent Producers
Inventor of Polarizing Microscope Sheds Light on Cell's Mystery
A new way of looking at live cells is revolutionizing our understanding of how molecular life works. However, it is how one scientist managed to complete his study despite facing World War II in Japan that makes his discovery so...
Catalyst University
Intestinal Production of Hydrogen Gas (H2) by Bacteria for Reduced Coenzymes
Bacteria of the human intestinal microbiome generate hydrogen gas (H2). Hydrogen gas is used by these same bacteria for methanogenesis, a biochemical pathway which generates methane. Here, we will discuss this process.
Catalyst University
Lipid Biosynthesis | Fatty Acid Biosynthesis 3: Fatty Acid Synthase
Lipid Biosynthesis | Fatty Acid Biosynthesis 3: Fatty Acid Synthase
Catalyst University
Catalytic Mechanism of Myeloperoxidase & Hypochlorous Acid Functions
Here we explore the catalytic mechanism of Myeloperoxidase and subsequent formation of Hypochlorous Acid and Hypothiocyanite, two reactive oxidative species (ROS). We will also see functions of Hypochlorous Acid.
Catalyst University
Omega Oxidation for Fatty Acids
In this video, we discuss the omega oxidation pathway for medium chain fatty acids and what happens to them afterward.
Catalyst University
Biotechniques | Principles of Gel Electrophoresis (DNA gels)
As always, the steps of DNA electrophoresis depend on your specific lab and protocol. Here, we look at the general theory of separating DNA on an agarose gel by electrophoresis and what it is used for in the lab. We will also learn about...
Catalyst University
Porphyrins | Heme b Biosynthesis and its Regulation
Porphyrins | Heme b Biosynthesis and its Regulation
Catalyst University
Physiological Mechanism of Popping ("Cracking") Joints
Have you ever wondered why or how your joints pop? In this video, I explain the physiological mechanism underlying the cracking or popping of joints such as those in the fingers or neck. The exact reasons may surprise you.
Catalyst University
Nucleotide Metabolism | Degradation of Uric Acid
Nucleotide Metabolism | Degradation of Uric Acid
Catalyst University
Steroidogenesis | The Biosynthesis of Steroids from Cholesterol
In this video, we examine the conversion of cholesterol to all of the major steroid classes: progestogens, mineralocorticoids, glucocorticoids, androgens, and estrogens.
Catalyst University
The Nuclear Pore Complex: Nuclear Import, Export, & RAN
In this video, we discuss the mechanisms by which proteins are targeted to the nucleus (import) and moved from the nucleus to the cytoplasm (export). Collectively, nucleocytoplasmic transport is regulated by the nuclear pore complex and...
Catalyst University
Prions | Mechanism of Classical Creutzfeldt-Jakob Disease (cCJD)
In this video, I discuss the mechanism of development and propagation of Classical Creutzfeldt-Jakob Disease (CJD).
Catalyst University
Primer Design for Cloning ENTIRE Gene Sequence
This video explains how to design primers for amplifying an entire gene of interest from start codon (ATG) to STOP codon. -Forward Primer -Reverse Primer -Ordering Primers using IDT