Biology2.5
Membrane transport
Review membrane transport for IMAT through passive and active transport, concentration gradients and movement across the cell membrane.
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Biology2.4
Membrane permeability
Review membrane permeability for IMAT through selective permeability and the properties that determine how molecules cross the cell membrane.
Biology2.3
Plasma membranes
Review plasma-membrane structure, the phospholipid bilayer and the importance of membrane proteins in IMAT questions.
Biology2.2
Cell size
Review cell size through surface-area-to-volume relationships, diffusion limits and why cells remain within particular size ranges.
Biology2.1
Cell structures and their functions
Review key organelles, intracellular functions and structure–function relationships that matter for IMAT.
Biology1.5
Structure and function of biological macromolecules
Strengthen your understanding of structure–function relationships in biological macromolecules using protein, carbohydrate, lipid and nucleic-acid examples.
Biology1.4
Properties, structure, and function of biological macromolecules
Review structure–function relationships in biological macromolecules through carbohydrates, lipids, proteins and nucleic acids.
Biology1.3
Introduction to biological macromolecules
Begin biological macromolecules and review carbohydrates, lipids, proteins and nucleic acids in an IMAT-focused audio lesson.
Biology1.2
Elements of life
Review the key elements, chemical bonds and building blocks of biological molecules required for IMAT Biology.
Biology1.1
Structure of Water and Hydrogen Bonding
Strengthen your understanding of water structure, polarity and hydrogen bonding in a short, focused lesson aligned with IMAT question language.
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