MCAT Basics (from MedSchoolCoach)

The electron transport chain is a fundamental pathway in biochemistry, critical for understanding the energy production that powers cellular function.
In this episode, guest host Alex Starks breaks down the intricate process of the electron transport chain (ETC). Building on previous discussions of glucose metabolism, Alex walks through the components that play key roles in the movement of electrons through complexes within the inner mitochondrial membrane. We also cover the functions of coenzyme Q and cytochrome c, as well as oxygen’s critical role in completing the process. 

Visit medschoolcoach.com for more help with the MCAT.
 
Jump into the conversation:
(00:00) Intro
(02:11) Recap of glycolysis, pyruvate, and the Krebs cycle
(03:02) Location of the TCA cycle and ETC in the mitochondria
(04:22) Overview of NADH and FADH2 production
(05:38) Complex I: NADH dehydrogenase and coenzyme Q
(08:00) Complex II: Succinate dehydrogenase and FADH2
(11:15) Complex III: Cytochrome c reductase and the role of proton pumping
(14:32) Complex IV: Cytochrome c oxidase and oxygen
(18:14) The role of ATP synthase
(21:47) Total ATP yield from aerobic respiration
(26:00) How the electron chain is disrupted
(30:20) Uncouplers and their metabolic effects
(35:16) Quiz

In this episode, we delve into three common types of isomers that you are likely to encounter on the MCAT: structural isomers, geometric isomers, and stereoisomers.  We start by defining each type of isomer, providing clear and concise explanations to ensure a solid understanding. Next, we present common examples of each isomer type to illustrate their unique characteristics. Finally, we discuss real-world applications and scenarios where these isomers are relevant, particularly in the context of the MCAT. This material will appear in the Physical Chemistry section of the MCAT and may also be found in the Biochemistry section. Visit MedSchoolCoach.com for more help with the MCAT.
 
Jump Into the Conversation:
[00:00] Introduction
[02:06] Structural isomers
[06:03] Geometric isomers
[15:50] Three different kinds of stereoisomers
[16:30] Enantiomers
[17:44] Diastereomers
[18:46] Conformational isomers
[22:06] Key terms regarding stereoisomers
[26:54] Difference between absolute and relative configurations of stereoisomers
[28:22] Interesting example of stereoisomers in different sugars

In this episode, we explore the different phases of the cell cycle: Interphase (G1, S, G2) and the M phase (mitosis). Next, we discuss the regulation of the cell cycle and the key checkpoints that ensure its proper progression. Finally, we touch on how dysfunction in the cell cycle can lead to diseases, particularly cancer. This material is likely to appear in the Bio/Biochem section of the MCAT.  
Visit MedSchoolCoach.com for more help with the MCAT.
 
[00:00] Introduction
[02:06] Overview of the cell cycle
[02:38] Two main phases of the cell cycle
[04:11] Interphase 
[12:43] Mitotic phase
[18:20] Regulation of the cell cycle
[27:09] Relevant examples of the cell cycle and disease

In this episode, we delve into classic psychology experiments –relevant to the Psych/Soc section of the MCAT. We cover a range of significant studies, including Pavlov’s Dog, Harlow’s Monkey Study, Albert’s Bobo Doll Experiment, the Skinner Box Experiment, Asch’s Conformity (Line) Experiment, the Milgram Experiment, Watson’s Little Albert Experiment, Sherif’s Robbers Cave Study, and Seligman’s Learned Helplessness Dog Study. Additionally, we touch on rapid-fire cases like Zimbardo’s Prison Experiment, the Kitty Genovese case, and Phineas Gage’s story.  Visit MedSchoolCoach.com for more help with the MCAT.
 
[00:00] Introduction
[02:37] Pavlov’s Dog Experiment
[07:40] Harlow’s Monkey Study
[12:05] Albert’s Bobo Doll Experiment
[15:41] The Skinner Box Experiment [24:12] Asch Conformity (Line) Experiment [28:16] The Milgram Experiment [36:01] Watson’s Little Albert Experiment [39:10] Sherif’s Robbers Cave Study [43:17] Seligman’s Learned Helplessness Dog Study [46:14]  Zimbardo’s Prison Experiment [48:39]  The Kitty Genovese case [49:47]  Phineas Gage’s story

This MCAT podcast covers social stratification. It begins with a definition and examples of many terms related to social stratification and inequality, including prejudice, discrimination, stereotype, stereotype threat, status (ascribed vs achieved), power (six different types to know), social capital (and other forms of capital), gentrification, and poverty. The discussion then moves on to social class and the social gradient in healthcare.
 
Visit MedSchoolCoach.com for more help with the MCAT.
 
[00:00] Introduction
[02:24] Terms related to social stratification
[03:03] Defining social stratification
[03:53] What is prejudice
[04:57] Defining stereotype and discrimination
[09:29] What is stereotype threat
[13:04] Status and the six different types of power
[21:50] Social Capital
[23:38] Defining gentrification
[25:07] Absolute poverty vs. relative poverty
[27:59] Social Class
[33:53] Social Stratification in Healthcare