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MCAT Basics

Health Admissions IQ
MCAT Basics
Latest episode

70 episodes

  • MCAT Basics

    Fat and Protein Metabolism

    22/10/2026 | 35 mins.
    In this episode, we’ll nail down all that is needed for the MCATB in relation to fat and protein metabolism. Two critical processes for gaining energy and maintaining cellular functions in the body. We'll learn about the intricate details of beta-oxidation, where fatty acids are broken down in the mitochondrial matrix to produce energy-rich molecules like NADH, FADH2, and acetyl CoA.
    From protein catabolism, where proteins are broken down into amino acids that feed into gluconeogenesis and ketosis pathways, to protein anabolism, where these amino acids are incorporated into new proteins. You'll get insights into the role of amino acids in synthesizing other compounds like serotonin and nucleotides.
    Visit www.HealthAdmissionsIQ.com for more help with the MCAT.
     
    Jump into the conversation:
    00:00 Introduction to MCAT Basics
    01:25 Fat metabolism
    02:00 Fat absorption
    06:45 Breakdown of fats
    08:30 Lipolysis
    10:15 Transport of fatty acids
    11:20 Beta oxidation pathway
    13:40 Energy yield from beta-oxidation
    16:00 Odd-chain and unsaturated fatty acids in beta-oxidation
    20:00 Differences in energy production and pathways.
    22:29 Fatty acid synthesis
    25:15 Ketone body formation and usage
    28:00 Protein breakdown (catabolism)
    31:45 Glucogenic and ketogenic amino acids
    35:00 Protein synthesis (anabolism)
  • MCAT Basics

    Work and Energy

    20/10/2026 | 32 mins.
    In this episode, we cover the topic of work and energy. We’ll start off by talking about work, which includes the mathematical and conceptual definitions and the sign convention of work. We’ll also talk a little bit about mechanical advantage and also path dependency. Moving on to energy, we’ll talk about the general definition of energy, we’ll compare and contrast energy in work and the different types of energy that includes kinetic energy, potential energy, thermal energy, and total mechanical energy. Lastly, we’ll talk about energy transfer, specifically heat transfer, and the three types of convection, conduction, and radiation.
    Visit www.HealthAdmissionsIQ.com for more help with the MCAT.
     
    Jump Into the Conversation:
    00:00 Introduction
    05:27 Summary: Limits of equation for work and force
    08:39 Positive work: force and displacement in same direction
    09:32 Comparison of mechanical and thermodynamic work sign conventions
    12:50 Work changes kinetic energy of moving objects
    16:32 Friction and energy
    22:25 Pitching
    27:10 Kinetic and potential energy relation 
    32:14 Sun and heat transfer
  • MCAT Basics

    The Endocrine System

    15/10/2026 | 38 mins.
    In this episode, we’ll cover crucial aspects such as hormones, their origins and mechanisms of action, and the various structures within the endocrine system. We'll also decode complex cell-to-cell communication and distinguish between different hormone types—peptide, protein, steroid, and lipid-derived.
     
    Furthermore, we'll explore key endocrine disorders like diabetes and hyper- and hypogonadism, discussing their causes, symptoms, and relevance to the MCAT. In addition, we'll touch upon the functions and hormones of several glands, including the pituitary, thyroid, adrenal glands, and pancreas.
     
    Visit www.HealthAdmissionsIQ.com for more help with the MCAT.
     
    Jump into the conversation:
    00:00 Introduction to the MCAT Basics Podcast with host, Sam Smith
    03:34 Exosomes act as information carriers for cells.
    09:00 Large, charged substances dissolve in blood easily.
    10:30 Protein kinase A activates multiple molecules quickly.
    15:57 Podcast discusses prostaglandin, thromboxins, leukotrienes and glands.
    18:22 Hormones explained: flat peg and pineal gland.
    23:15 Endocrine diseases: hyperthyroidism, hypothyroidism, hyperinhypogonadism, diabetes.
    26:33 Autoimmune disorder characterized by overactive thyroid production.
    29:28 Hypothalamus role in hormone production and disorders.
    34:01 Type 1 diabetes: Genetic and environmental factors.
    35:47 Diagnosis and causes of type two diabetes.
    39:18 Med School Coach elevates your application level.
  • MCAT Basics

    Sleep and Circadian Rhythms

    13/10/2026 | 43 mins.
    This episode is packed with essential high-yield information for your MCAT prep, covering the biological, physiological, and psychological aspects of sleep. We’ll explore various sleep theories, like the Memory Consolidation and Brain Plasicticity Theories, and even discuss the controversial “Sleeping When You Die” theory. We’ll also delve into dream theories, including Freud’s interpretations and the Activation Synthesys Hypothesis. Plus, we’ll address common sleep disorders such as insomnia, sleep apnea, and narcolepsy, alongside the effects of different drugs on your sleep patterns. 
     
    We’ll cover critical brain structures involved in sleep, such as the hypothalamus and the suprachiasmatic nucleus, and break down the stages of sleep measured through EEG, EMG, and EOG. 
     
    Visit www.HealthAdmissionsIQ.com for more help with the MCAT.
     
    [00:00] Introduction to the MCAT Basics podcast with host, Sam Smith
    [04:05] Pineal gland, amygdala, basal forebrain in sleep.
    [07:40] Measuring postsynaptic potential, not action potentials. EEG waves distinguish sleep stages. EMG records muscle electrical activity.
    [10:46] Alpha waves awake, theta waves asleep. Hallucinations in stage N1 sleep.
    [15:01] Unconfirmed sleepwalking. Stages of sleep explained.
    [18:18] Sleep cycles lengthen REM stage, diagrams illustrate.
    [19:50] We don't remember all our dreams.
    [23:55] Shifting circadian rhythms due to changes in light.
    [29:10] Blind people's melatonin release entrained with light.
    [29:41] Cortisol secretion cycle follows a circadian rhythm.
    [35:09] Freud: Dreams represent unconscious desires; manifest vs latent.
    [38:53] Divorce dreams related to spouse thinking time. Broad sleep disorder categories: insomnia, breathing, hypersomnolence.
    [41:18] Hypersomnia, narcolepsy, drugs' impact on sleep.
    [44:14 Brief primer on drug effects on sleep.
  • MCAT Basics

    The Excretory System

    08/10/2026 | 28 mins.
    In this episode, we're covering the anatomy and physiology of key organs such as the kidneys, liver, skin, lungs, and large intestine, and discuss the crucial role they play in eliminating waste products from our bodies.
    From the structure of the hepatic lobules in the liver to the sweat glands in our skin and the alveoli in our lungs, we'll cover how each component functions to maintain homeostasis. We'll also delve into the metabolic breakdown processes and the excretion of waste molecules such as urea, electrolytes, and gases like carbon dioxide. 
    Visit www.HealthAdmissionsIQ.com for more help with the MCAT.
     
    Jump into the conversation:
    [00:00] Introduction to the MCAT Basics Podcast with host, Sam Smith
    [04:50] Kidney, adrenal glands, nephrons filter blood. Bladder stores waste connected to kidneys.
    [09:57] Liver has lobes and functional hepatic lobules. Skin excretes through sweating.
    [12:20] Lung anatomy: trachea, bronchi, alveoli, gas exchange.
    [16:54] Urea cycle energy requirement, deamination of amino acids.
    [20:35] Urea density calculates volume of small ice cube.
    [24:15] Carbon dioxide is a metabolic byproduct.
    [27:46] Liver metabolizes drugs into water-soluble compounds.
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About MCAT Basics
MCAT Basics breaks down the high-yield concepts you need to know for the MCAT in clear, approachable lessons. Hosted by Sam Smith and presented by Health Admissions IQ, each episode explores topics across the MCAT sciences and behavioral sciences, with content aligned to the AAMC exam framework and commonly tested concepts. Whether you’re building your foundation or reinforcing key material, MCAT Basics helps make complex MCAT topics easier to understand and review.
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