The Daily Conversation
The Future of Farming
By 2050, the world’s population will reach nearly 10 billion, so we’ll need to produce twice as much food. New farming technologies like robot harvesters, drones, sensors, lab-grown meat, and genetically modified crops are helping...
Curated Video
Isoelectric Focusing Gels
Isoelectric focusing (IEF) is a high-resolution protein separation technique that separates proteins based on their isoelectric points (pI) using a pH gradient in an electric field. Proteins migrate to the region where their net charge...
Curated Video
Mismatch Repair of DNA
Mismatch repair (MMR) is a DNA repair mechanism that corrects base-pairing errors and small insertions or deletions that escape proofreading during DNA replication. A protein complex identifies the mismatch, excises a section of the...
Curated Video
Passive Transport: Diffusion, Facilitated Diffusion & Osmosis
Passive transport includes diffusion, facilitated diffusion, and osmosis, all of which move substances down their concentration gradients without energy input. Small, uncharged molecules like oxygen and carbon dioxide diffuse freely,...
Curated Video
SOS repair of DNA
The SOS response is a bacterial mechanism activated by DNA damage, involving the RecA protein and regulated by the LexA repressor. Upon DNA damage, RecA binds to single-stranded DNA, becomes activated, and promotes LexA self-cleavage,...
Curated Video
Isoelectric focusing
Isoelectric focusing (IEF) is a high-resolution technique for separating proteins based on their isoelectric points, utilizing electric fields to focus molecules into sharp zones within a pH gradient. The pH gradient, created using...
Curated Video
Isoelectric point
Proteins, composed of amphoteric amino acids, can carry different net charges depending on the pH of their environment. The pH at which a protein has no net charge is called its isoelectric point (pI), and this varies between proteins...
Curated Video
Native PAGE : Polyacrylamide gel electrophoresis
Unlike SDS–PAGE, which denatures proteins, native or buffer gels maintain proteins in their functional state, allowing detection of enzymes based on biological activity. Proteins are separated by their native charge and size, and enzyme...
Curated Video
2D polyacrylamide gel electrophoresis
Two-dimensional polyacrylamide gel electrophoresis (2-D PAGE or 2-DE) is a powerful technique used in proteomics to separate complex protein mixtures based on two properties: isoelectric point (via isoelectric focusing) and molecular...
Science Buddies
Modeling Biologics Manufacturing | Science Activity
In this science activity, students will learn the steps used to create biologics by modeling the manufacturing process.
Curated Video
Fluid mosaic model of the cell membrane
The plasma membrane is a complex structure made up of macromolecules that come together to form a fluid mosaic. In this video, we will look at the structure, properties and functions of the fluid mosaic model.
Curated Video
Protein functions in the human body
Proteins are complex macromolecules that are considered 1 of the 4 macromolecules that make up life. Proteins have many functions beyond being structural components of cells.
Curated Video
Peptide bonds
In this video, we explore what peptide bonds are, their crucial role in protein synthesis, and the fascinating process of their formation. Understand where peptide bonds are found in nature and their significance in biology and...
Curated Video
Amino acids: types, structure and function
What is an amino acid? Learn about the structure, classification, types and functions of amino acids in this fun video.
Curated Video
Disulfide bonds
What is a disulfide bond? Why are disulfide bonds so important in biochemistry? Find out these answers and more in this video!
Curated Video
Ribosomes: structure and function
Ribosomes are cell organelles with a peculiar structure and function. In this video, will talk about many things ribosomes, especially their roles in protein production and the differences between the types of ribosomes.
Curated Video
New Applications for Technology: Aneurysm Detection and Allergy-Free Food
Researchers at the University of Warwick have developed innovative applications for technology in the medical field. They have used photoelastic stress analysis to determine the physical strain on artery walls caused by aneurysms,...
Curated Video
These are the 4 main types of carbon-based molecules necessary for life
There are 4 main types of carbon-based molecules important to life. They are the building blocks for every living organism on this planet. In this video, I will give you a quick introduction to each type with some fun examples.
Curated Video
Promising Research: Turning Off Cancerous Cells with a Protein Switch
Scientists have made a significant discovery in cancer research, finding a way to turn off cancerous cells by targeting a protein called Mick. Experiments on mice have shown promising results, with previously incurable liver tumors being...
Science ABC
What Happens To Your Hair After You Die?
Hair resists decay even after death due to keratin, a structural protein. The structure and chemical composition of keratin make it difficult for organisms to break it down. Hair outlasts most other soft tissues due to the insoluble and...
Science ABC
What are Mutations and what are the different types of Mutations?
A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...
Science ABC
What are GMOs (Genetically Modified Organisms)?
GMO or genetically modified organisms are organisms with their DNA modified, usually by adding new or different DNA from another organism. GM crops are crops that have genes from bacteria. These genes allow the plants to either produce...
Science ABC
Does Donating Blood Burn Calories?
Donating blood can lead to weight loss, but this loss is not significant. As covered in this video, the average donation is 1 pint of blood, which weighs about 1 pound; so right off the bat, youre walking out of the donation center 1...