Howcast - Learn how to trim spareribs into a St. Louis cut from Pork Barrel BBQ pitmasters Heath Hall and Brett Thompson in this Howcast video.

In the food business, secrets have a way of getting around. From KFC's signature spice blend to most fast food "secret menu" items, it seems that culinary secrets rarely stay secret for long. Case in point: the hanger steak.

DIY SCI host Steve Spangler demonstrates how it is possible to fold an eggshell!

Aquaporins are specialized membrane proteins that form water-selective channels, allowing rapid water movement across cell membranes while blocking ions and solutes. Structurally, they consist of six transmembrane α-helices and loop...

Practice life sciences questions using real examples from 2012.

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,...

Ready for action? Time to get your neurons firing with some action potential. If you thought resting potential was tough to understand, it seems like action potential is that much more difficult. However, thanks to Alie Astrocyte, we...

Passive transport is a naturally occurring phenomenon that allows us to keep things balanced in our cells. Simple diffusion, facilitated diffusion and osmosis are known types of passive transport.

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.

The plasma membrane or cell membrane is an intricate structure made of macromolecules that work together to protect the cell. Think of it as the security guard of the cell - letting important substances in, and letting others out.

What exactly are phospholipids, and how do they contribute to the structure and function of cell membranes? In this video, we will explore the world of phospholipids, including their chemical structure, properties, and functions in the...

This video explores various technological advancements in sports, including a highly accurate football, a spray to mark free kick positions, and waterproof socks to keep players' feet dry and warm. These innovations aim to enhance the...

Bacteria hate viruses called bacteriophages, and rightfully so. These viruses are vicious! They make bacteria their hosts and create multiple copies in a process called lytic cycle. In this video, we will do a quick review of the main...

The endoplasmic reticulum is one important organelle in the cell responsible for many things including protein folding. In this video, we will cover its structure and function of the rough endoplasmic reticulum and smooth endoplasmic...

The Testers explore the strength and resilience of eggshells, guided by an egg expert. They conduct experiments to measure the pressure eggshells can withstand and ultimately test whether it's possible to walk on eggs without breaking...

Learn about “osmosis” by making a rubber egg! Then stick around for the 2 bonus experiments. And you won’t want to miss the surprise ending!!! 0:00 – Introduction of the lesson 0:23 – What you need 0:44 – Explanation of Osmosis 2:38 –...

Making liquid nitrogen is hard - in fact up until 150 years ago scientists doubted whether it was even possible to liquefy nitrogen. In 1823, At the royal institution in London, Michael Faraday first produced liquid chlorine, kind of...

Compartimento lleno de líquido que se encuentra dentro de la célula, envuelto por una membrana. <br/<br/>>

Twig - Biología

Neurons send signals through a mechanism called action potential. Action potentials are electrical signals that pass through the neuron’s axon. This causes the neuron to pass the signal to the next neuron. Action potentials are the...

Organisms whose cells contain complex membrane-bound structures, called organelles.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Usually referring to a pocket of liquid within the cytoplasm of a cell, which is used to enclose and transport chemicals.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using...

The thick liquidy medium that fills all cells, and is contained by the cell membrane. The cytoplasm is where most of the cell's chemical reactions, such as glycolysis, take place.
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The use of energy to move particles across a cell membrane from a lower concentration to a higher concentration.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

Very simple organisms that can photosynthesise like plants, but do not have complex features such as roots, stems, or leaves.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using...