Learn Smarter, Score Higher with MD Tutor for College Science, Pre-med & AP Test Prep

The Student and Tutor worked on organic chemistry problems centered on calculating pKa values for different protons in various organic molecules. They practiced identifying specific functional groups and matching them to a provided pKa data table, discussing challenges related to structural identification and the interpretation of substituent groups. The Tutor offered continued support for other homework questions if needed.

The Student and Tutor reviewed key concepts in AP Biology, focusing on cell transport mechanisms, cell membrane structure and function, and basic cell cycle phases, specifically addressing questions from a recent quiz. They extensively discussed passive and active transport, cytosis, and the properties of the cell membrane, along with the function of mitochondria and osmosis. The Tutor also provided test-taking strategies, including time management and the benefit of pre-writing notes for an upcoming exam.

The Student and Tutor reviewed key concepts in cell biology, focusing on cell membrane structure, different modes of cellular transport, and the principles of diffusion and osmosis. They specifically covered gradients, simple and facilitated diffusion, the role of transporters, osmolarity, and tonicity, including its effects on cell shape. The session concluded with an explanation of endocytosis and exocytosis, including phagocytosis and pinocytosis.

Student and Tutor reviewed the circulatory system, covering open versus closed systems, the evolution of hearts in fish, amphibians, and mammals, and detailed human heart anatomy and blood flow. They also discussed the cardiac cycle, the heart's conductive system, and compared the structure and function of arteries, veins, and capillaries. The session ended with the Student identifying key parts of the heart and vessels.

The Tutor and Student reviewed fundamental concepts of cell biology, including the classification of cell types, the structure and function of various organelles, and the composition and properties of the plasma membrane. They discussed how these components contribute to cellular processes and structure. The session aimed to clarify confusing topics from the Student's recent coursework.

Student and Tutor reviewed key concepts of the respiratory system in preparation for an upcoming exam. They discussed adaptations for gas exchange in various organisms (flatworms, insects, fish, humans, birds) and analyzed oxygen-hemoglobin dissociation curves. They plan to review the circulatory system in the next session.