Category: Biology 1
Video: The Plasma Membrane – A View of the Cell
What would the cell be without the plasma membrane? I mean really – A bunch of organelles floating around everywhere, anything being able to get in or out – that’s just not a pretty picture. In this section, I talk about the structure and function of the plasma membrane, and how important it is for maintaining homeostasis (balance).
Read MoreVideo: The Discovery of Cells – A View of the Cell
How in the world did we get to where we are today, in terms of our knowledge of cells? Well go ahead and watch this video, and you’ll see. In it, I talk about the History of the cell theory, starting all the way from the invention of the Microscope by the dutch scientist Anton van Leeuwenhoek. See how knowledge increased from that basic discovery to all the things we know today about the structure and function of the organelles inside the cell.
Read MoreVideo: Life Substances – The Chemistry of Life
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
Read MoreVideo: Water and Diffusion – The Chemistry of Life
Water! It’s so awesome. Or should I say – Cool? In this section, I talk about water. There are some unique properties than make water essential for all living things. I’m not gonna tell you what they are. For that, you will have to watch the video.
Read MoreVideo: Atoms and Their Interactions – The Chemistry of Life
An element is a substance that cannot be broken down into smaller particles. Join me as I take you on a journey through the atom, looking at the protons, neutrons and Electrons. This journey then goes into topics like Chemical Reactions, Covalent and Ionic Bonds and the pH of different substances. By looking at the pH, we are able to determine if a substance is an acid or a base.
Read More
The Chemistry of Life – Presentation Slides
Walk yourself through the slides of my lecture on “The Chemistry of Life”, where I deal with a basic introduction to chemistry. I start off by talking about elements, and give examples of what elements are.
Read MoreVideo: Conservation of Biodiversity
This is section 4.2 in the book “Biology: Dynamics of Life”. Now that I’ve dealt with the topic of Biodiversity and shown how important it is to life in general, it’s time to look at some of the efforts that are made in order to preserve Biodiversity
Read MoreVideo: Vanishing Species – Biodiversity
In this section, I talk about the problem of Vanishing Species. The topic is Biodiversity, which is a measure of the number of species in a certain area. Biodiversity is extremely important because it adds beauty, provides stability and because life depends on life
Read More
Biological Diversity and Conservation – Presentation Slides
These are the Slides for the lecture on “Biological Diversity and Conservation”, chapter 5 in the book “Biology: The Diversity of Life”. This chapter covers the topic of biodiversity, the threats to biodiversity and the topic of Conservation Biology.
Read More
A View of the Cell – Presentation Slides
These are the slides for my Lecture entitled “A View of the Cell”. This chapter starts with a history of the Cell Theory going all the way back to the invention of the Microscope to the discovery that All plants and Animals contain cells. It then goes into the types of cells, the organelles and their functions.
Read More
Population Biology Presentation Slides
These are the slides for the Topic Population Biology. A population is a group of organisms that are of the same species that are living together in the same place at the same time. Understanding how these organisms interact and grow is essential to our understanding of ecology.
Read More
Video: Human Population Growth
This video is from Chapter 4 in the Book “Biology: The Dynamics of Life”. It talks about population growth as it relates to Human Populations. It’s a basic introduction to the field of demographics (human population growth), and shows the 3 factors that demographers are concerned with: Growth Rate, Age Structure and Geographic distribution. Growth Rate is determined by Birth and Death rate. Age structure has to do with the proportions of a population at the different age levels, and geographic distribution deals with the topics of immigration and emigration.
Read More