Catalyst University
The DNA Damage Response | Repair the DNA or Commit Apoptosis?
DNA damage is inevitable. But what happens inside the nucleus when the DNA becomes damaged? Here we discuss the biochemical processes that occur and how the cell decides whether to attempt DNA repair or undergo apoptosis.
Professor Dave Explains
The Immune System: Innate Defenses and Adaptive Defenses
There are so many critters out there, bacteria and viruses that want to wreak havoc in our bodies. How do we defend ourselves against such tiny threats? The immune system! This is quite possibly the most profoundly remarkable aspect of...
Professor Dave Explains
What is Cancer?
Cancer is the ultimate expiration date for biological life. But what is it? How does it occur? Is there anything we can do about it? Let's take a brief look at this incredibly complex issue.
Professor Dave Explains
Apoptosis Programmed Cell Death
We've touched on apoptosis before, especially when we learned about cancer in the biochemistry series. But let's a closer look. We know that apoptosis is programmed cell death, a failsafe mechanism whereby faulty cells that pose a threat...
Khan Academy
Cancer, Cells, MCAT
Learning about apoptosis and how cells can destroy themselves without any external influence is fascinating. Sal creates interest in the vast number of cells and the complexity of the human body. The likelihood of a mutation causing a...
Other
Molecular Movies: Cell & Molecular Animation Showcase
An organized directory showcasing cell and molecular animations for use in high school biology classrooms.
Khan Academy
Khan Academy: Cancer
Video lesson presents an introduction to what cancer is and how it is the by-product of broken DNA replication. [12:35]
Sophia Learning
Sophia: Cancer and Homeostasis: Lesson 1
This lesson will identify what causes cancer, how your immune system attempts to fight cancer and various treatments of cancer. This lesson will also investigate the affect cancer has on the body's ability to maintain homeostasis. It is...
Sophia Learning
Sophia: Cell Mediated Response: Lesson 1
This lesson will investigate a cell-mediated immune response. It is 1 of 5 in the series titled "Cell-Mediated Response."