Our bodies love processing glucose, the primary energy source for many organisms. It is simple and easy to extract the energy contained within this simple sugar. But, there are other sugars that organisms can utilize such as lactose. One way that E. coli and many other bacteria harness lactose as an energy source is with the help of the lac operon. This episode explores the components of the lac operon and how the operon functions under varying levels of lactose and glucose.
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17:32
Translation
In the early 2000s, news headlines were all reporting of the same terror: ricin laden letters. Once a person comes in contact with ricin and the poison is absorbed, cells lose the ability to perform translation. Without translation, the body is unable to synthesize proteins critical for life. In today’s episode, we will explore the step by step process of translation along with the structural components involved (ribosomes and t-RNA).Translation YouTube Video Link: https://youtu.be/Vu6LBOQSqiE
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17:49
DNA Structure
DNA serves as the genetic blueprint for all living organisms. They hold all of the information that govern our very existence. Our growth and development as living organisms relies on this essential biological molecule. In this episode, we will be explore the structure of DNA. Specifically, we will analyze nucleotide structure, dehydration synthesis, complementary base pairing, and the double helix.
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21:13
Darwin's Four Postulates
Today, we have Charles Darwin to thank for the theory of evolution and natural selection. His work has revolutionized our understanding of life on Earth. In his infamous novel, On the Origin of Species, he proposed a core concept that we refer to as Darwin's four postulates. These postulates serve as the foundation for how natural selection occurs. In this episode, we will explore each of these postulates and dive into how natural selection occurs.
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12:47
Characteristics of Living Organisms
As biologists, we are responsible for the study of life. We study a vast range of topics from how cancer cells interact with each other to the origin of life. We study everything that is living. But, what does it mean to even be alive? Today, we will be discussing the 7 characteristics of living organisms.
Welcome to BioTime, a place for you to discover how our complex world works. From biology and chemistry crash courses to interviews with scientific researchers at the forefront of their field, this podcast hopes to help you not only learn more about the complexities of life but also gain an appreciation for the sciences. This podcast is hosted by Christopher Jang.
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