Biological Membranes

The Doppler Effect is a crucial concept for the MCAT, particularly in the Chemistry & Physics section. We'll explore how the Doppler effect occurs when a wave source moves relative to an observer, affecting the observed frequency and wavelength. Using practical examples like an a ...  Show more

In this episode, we cover the topic of viruses. We explore a comprehensive range of subtopics including the definition and structure of viruses, their life cycles, and the differences between transduction and transfection. We also discuss virus classification, viral mutations, an ...  Show more

In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ...  Show more

Differences in ion concentrations inside and outside a cell cause a difference in the charge of the intracellular and extracellular environments. This electrical polarization of a cell relative to its environment is referred to as cellular membrane potential. This potential se ...

Welcome to this episode of Surgery 101 where we will learn the basics of tympanic membrane perforations. After listening to this podcast, learners should be able to: 1. Describe the anatomy relevant to a tympanic membrane perforation. 2. List the mechanisms by which a tympanic me ...  Show more

In this episode, we’ll explore the fundamental building blocks of life: cells. We’ll distinguish between the two main cell types—eukaryotic and prokaryotic. Eukaryotic cells, found in organisms like plants and animals, are typically larger, while prokaryotic cells, such as bac ...