Collection of videos, experiments, and past papers that are suitable for AP Biology.
A Tour of the Cell
The difference between prokaryotic and eukaryotic cells.
Why cells are small but not infinitely small?
How the organelles work together in a similar fashion?
The Nucleolus, The Nucleus, The Ribosomes, The Vesicle
The Rough ER (Endoplasmic reticulum), The Golgi Body, The Cytoskeleton
The Smooth ER (Endoplasmic reticulum), The Mitochondria, The Vacuole
The Cytosol, The Lysosome, The Centriole
Transport Across Cell Membranes
How cells move materials across the cell membrane?
All movement can be classified as passive or active.
Passive transport, like diffusion, requires no energy as particles move along their gradient.
Active transport requires additional energy as particles move against their gradient.
Specific examples, like GLUT and the Na/K pump are included.
How enzymes are used to break down substrates?
The correct shape of the active site allows a key/lock fit between the enzyme and the substrate.
The enzyme catalase is used to break down hydrogen peroxide.
The importance of cofactors and coenzymes is emphasized.
Competitive and allosteric inhibition is also included.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
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