Ion concentration gradient - PowerPoint PPT Presentation

Membrane Transport

Membrane Transport. About Cell Membranes. All cells have a cell membrane Functions : Controls what enters and exits the cell to maintain an internal balance called homeostasis Provides protection and support for the cell. TEM picture of a real cell membrane.

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4.09k views • 52 slides

The perception of sound

The perception of sound. Nisheeth 20 th Feb 2019. Review: the visual pathway. Pathway begins at the physical apparatus of the eye Works its way through connecting nerves Lateral geniculate nucleus (LGN) is an important junction Terminates in primary visual cortex.

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625 views • 50 slides

5.2-5.4 PDQ

5.2-5.4 PDQ. AP Biology. 1. Why is the plasma membrane described as selectively permeable?. Because it allows certain molecules through. 2. Which types of molecules can passively cross a membrane?. Some small molecules Hydrophobic molecules Molecules that are soluble in lipids

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338 views • 31 slides

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