Lesson on the urea cycle, how it functions, how it removes nitrogenous waste such as ammonia/ammonium and what regulates the urea cycle. In this lesson you will learn: What is the urea cycle? Regulation of the urea cycle Importance of...

Learn the basics about biological detergents as part of the organic chemistry within everyday life.

7 Scientific Reasons for Low Testosterone Levels in Men and 10 Ways to Increase Testosterone Levels. Low testosterone levels can be caused by many lifestyle factors including dietary choices, stress, sleep habits, and chemical exposures....

The video is a lecture presentation on genetic modification or genetic engineering, explaining the process of modifying an organism's genome to introduce desirable characteristics. The presenter describes the use of plasmids and viruses...

Polarization: Theory and Example

This video provides an explanation of homeostasis. The video discusses the importance of homeostasis, particularly in relation to enzyme action and cell function, and provides examples of homeostasis in the human body, such as the...

It explains importance of Enzymes.

Remember how the Ninja Turtles came to be? Yes you do. It was the ooze! A radioactive ooze that mutated their DNA in just the right way to give them the ability to walk upright, talk, and do ninjutsu. Now, I'm as a big a Turtle fan as...

This video explains catalysts, exploring the concept of activation energy and how catalysts can lower it to speed up reactions. The video covers the use of catalysts in industry and domestic applications, including the catalytic...

RNAi: Gene Regulation via miRNAs & siRNAs

In this video, we discuss the details concerning the Renin-Angiotensin-Aldosterone [RAAS] Pathway.

This video explains the process of digestion and nutrition in humans, starting from the ingestion of food to the egestion of waste. It covers the role of different organs and enzymes involved in the process and provides fun facts and...

We learned about gene expression in biochemistry, which is comprised of transcription and translation, and referred to as the "central dogma" of molecular biology. But how is this process regulated? How does a cell know which genes to...

Scientists from Harvard University and the Massachusetts Institute of Technology have developed a new method of editing DNA which combines CRISPR-Cas9 with a reverse transcriptase enzyme.

The royal archery contest begins! Everyone expects Robin Hood to win, since he is an accurate and reliable archer. But what do the terms accuracy and reliability mean? This lesson will explore accuracy and systematic errors, including...

The royal archery contest begins! Everyone expects Robin Hood to win, since he is an accurate and reliable archer. But what do the terms accuracy and reliability mean? This lesson will explore accuracy and systematic errors, including...

Restriction Enzyme Set: 1. This clip introduces DNA-snipping restriction enzymes and takes a simplified look at how enzymes function.

Here we have provided an explanation of lagging strand DNA replication followed by an great animation beginning at 4:04.

Antibodies/Antigens: ELISA Theory

Cholesterol Synthesis Pathway Lesson: Regulation, Metabolism and Storage as Cholesterol Ester. Hey guys! In this lesson, you will learn the purpose of cholesterol in our bodies, why acetyl CoA and NADPH are required for cholesterol...

Your DNA needs to be in every cell in your body, so what happens when cells divide? How does each new cell retain all of the genetic information? The DNA is able to copy itself through a process called replication. Let's go through the...

We've discussed some aspects of biotechnology already, but we have yet to discuss the promising field of synthetic biology. We are now able to manipulate biological organisms in ways that have technological applications, and one of the...

CREDITS Animation & Design: Bing Rijper Narration: Dale Bennett Script: Gemma Young It might be hard to believe, but at the very start of your life you were a single, microscopic cell called a zygote. Your body now contains millions of...

Enzymes are really important proteins, that speed up the rates of reactions such as in photosynthesis, respiration and protein synthesis. The enzymes and substrates are always moving, and occasionally they collide at the right speed and...