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275 free courses & lectures available for Biology

Prokaryotic and eukaryotic cells | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.11 hours
Prokaryotic and eukaryotic cells. Bacteria and archaea. Watch the next lesson: ...
  
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Mitochondria | Structure of a cell | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.24 hours
The structure and role of mitochondria (plural for mitochondrion). Discusses the outer membrane, inner membrane, cristae, porins, etc. Watch the next lesson: ...
  
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The cytoskeleton | Structure of a cell | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.11 hours
Exploring the cell cytoskeleton, including microfilaments and microtubules (with a brief mention of intermediate filaments). Watch the next lesson: ...
  
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Extracellular matrix | Structure of a cell | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.12 hours
Overview of how cells interact with the extracellular matrix. Watch the next lesson: ...
  
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Osmosis | Membranes and transport | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.13 hours
Osmosis of water (or any solvent) from area of lower solute concentration to areas of higher solute concentration through a semipermeable membrane. Watch ...
  
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Endocytosis, phagocytosis, and pinocytosis | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.08 hours
Bulk transport: endocytosis, phagocytosis, and pinocytosis. Watch the next lesson: ...
  
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Sodium potassium pump | Membranes and transport | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.12 hours
How the sodium potassium pump pumps sodium ions out while pumping potassium ions in (and the role this plays in establishing resting membrane potentials ...
  
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Second Law of Thermodynamics and entropy | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.14 hours
Second Law of Thermodynamics and entropy: the entropy of the universe constantly increases. Watch the next lesson: ...
  
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Enzyme cofactors and coenzymes | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.17 hours
The cofactors and coenzymes (organic cofactors) that help enzymes catalyze reactions Watch the next lesson: ...
  
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Genetic drift, bottleneck effect and founder effect | Biology | Khan Academy

by Khan Academy on Youtube Youtube
Duration: 0.18 hours
Genetic drift, bottleneck effect and founder effect Watch the next lesson: ...
  
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