Chapter 3 continued: Osmosis and beyond

Transport of water: Just as any other molecule, water has to pass through the cell membrane too, however this movement of water is so important that it is given a special name - Osmosis 

Turgor pressure: Turgor pressure is any type force in plants that pushes against the cell wall

Active transport -  Many cellular processes require transporting solutes across membrane to where their concentration is higher. Moving a solute against its concentration gradient requires energy. In active transport, a transport protein uses energy to pump solute against its gradient across a cell membrane.


Other proteins in membrane:

Enzymes - Speed up chemical reactions

Transport proteins - Assist movement of ions/molecules across the membrane 

Receptor proteins - Trigger a change in cell activity by responding to an outside signal

Adhesion proteins - Help hold cells together in animal tissues and sense their position



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