BioTime Christopher Jang

In society, we have many different people with different roles and ecological communities are no different. All organisms are interconnected through a complex web of interactions and a way we can describe the composition of species in a certain geographic location is to look at community structure. Today we will be exploring community structures, species diversity, species richness, species evenness, keystone species, and foundational species.

As humans, we walk, talk, run, and do an endless list of tasks a day, all of which require energy. Where is all of this power generated from? In this podcast, we will be discussing the structure of a mitochondrion, the function of a mitochondrion, and how cellular respiration takes place within the mitochondrion. 

13.8 billion years ago, our universe exploded into existence. But from that point on, how did life form? Today, we are going to be talking about the origins of life on Earth and hypotheses about how life came to inhabit this planet. 

The Earth formed around 4.5 billion years ago. Over the past billions of years, evolution has greatly changed life as we see it today. If we transport ourselves back in time and look at cells, we will notice that they are extremely simple. But, in the present day, we notice that cells have become much more complicated beings with very complex processes that require many entities in order to function. The process of how this occurred is known as the endosymbiotic theory. This podcast will discuss what the endosymbiotic theory is and the evidence that supports it. 

Our cells are very complicated and require and require many different enzymes, proteins, ions, and more in order to function properly. They need all of these different biological necessities to be at the right place and at the right time. How do our cells have so much control over all of these necessities? The answer lies in active and passive transport. This podcast dives into how active and passive transport work along with examples. 

Mendelian principles have served as a gateway into the functions of how our genetic information is passed on. Over time, we have discovered principles beyond mendelian genetics. In this episode, we review multiple alleles, incomplete dominance, and codominance. We discuss how they function and the examples of each form on inheritance.

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