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Learn about cell parts and their functions in this comprehensive guide.

Detailed overview of the plasma membrane and cytoplasm in cells.

Khan Academy

Cellular respiration is the process by which cells convert glucose into energy.

Learn about the nucleus and ribosomes in cells with this Khan Academy tutorial.

Explanation of prokaryotic cells, including structure, function, and examples.

Explanation of active transport, a process requiring energy to move molecules across cell membranes against a concentration gradient.

Learn about osmosis, a vital process in cellular function, including mechanisms of transport, tonicity, and osmoregulation.

Introduction to lipids, their molecular structure, types, and functions.