Interactive Biology, by Leslie Samuel » Amino Acids

Video: Life Substances – The Chemistry of Life

Leslie Samuel — Sun, 19 Dec 2010 04:30:44 +0000

Ok, I’ve already spoken about the importance of water. However, there are other important substances that we need in order to survive. In this section, I talk about Carbohydrates, Lipids, Proteins, and Nucleic Acids.

We’re going to look at the structure and function of those life substances. So, stop wasting time and go on and watch the video

Video: Nutrition

Leslie Samuel — Sun, 14 Mar 2010 01:34:30 +0000

McDonald’s, Wendy’s, Olive Garden and China Garden – they all have something in common, they all serve FOOD. But all foods are not created equally. I you want to be healthy, you want to make sure that you are getting what you need. In this lecture, I talk about nutrition, starting with the 6 vital nutrients and where you ind them and how your body deals with those nutrients.

I end the section by talking about Calories and metabolism. What determines how many calories we need on a daily basis? Watch the video to find out.

This is section 35.1 in the textbook Biology: The Dynamics of Life and is part of the chapter on The Digestive and Endocrine Systems.

Outline:

The Vital Nutrients
Calories and Metabolism

Chapter 11 Presentation – DNA and Genes

Leslie Samuel — Thu, 18 Feb 2010 15:26:07 +0000

These are the actual presentation slides for Chapter 11 in Biology, The Dynamics of Life. You can go through it at your own pace and learn about the wonders of DNA, how this Blueprint results in the production of proteins, and how that results in an organism’s traits. It also covers the topic of Mutations. It’s amazing to think that inside each cell, as tiny as they are, you can find the information that results in all of this complexity that we see. Enjoy!

The DNA and Genes Game

Leslie Samuel — Tue, 09 Feb 2010 20:07:53 +0000

So you think you understand DNA and Genes? You say you know how the process of transcription works? Yeah yeah, you even understand translation, and you are an expert on Mutations because you’ve watched X-Men ten times. Go ahead and test your knowledge by playing the DNA and Genes Game. Go on, I dear ya!

Video: From DNA to Protein

Leslie Samuel — Fri, 05 Feb 2010 17:59:42 +0000

(Video: Watch this video on the post page)

Description

DNA is expressed and put into action through proteins. These proteins are involved in structural support and they also act as enzymes. Enzymes are involved in all of the chemical reactions that happen in the body. In this lecture, I first talk about the relationship between DNA and Protein and how this relationship leads to all of the traits that an organism expresses. I then go into the differences between DNA and RNA.

Transcription is the process that results in the production of mRNA. Translation ultimately results in the production of proteins. Understanding these to processes is essential to our understanding of how DNA is the Blueprint of Life.

This is part Chapter 11 in the textbook Biology: The Dynamics of Life, which is the chapter on DNA and Genes.

Outline

Genes and Proteins
RNA and its functions
Transcription
Tranlation