Molecule Movement

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Osmosis
The passive movement of water across a partially permeable membrane down a water potential gradient
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Diffusion
The passive movement of a substance from an area of high concentration to low concentration
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Endocytosis
The bulk movement of substances into a cell
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Exocytosis
The bulk movement of substances out of a cell
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Pinocytosis
The bulk movement of liquids
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Phagocytosis
The bulk movement of solid material
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Turgid
When a plant cell cytoplasm pushes against the cell wall due to water pressure
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Haemolysis
When an animal cell burst open due to the movement of water into the cell
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Plasmolysis
When the cell surface membrane of a plant cell pulls away from the cell wall due to the cytoplasm shrinking as water moves out of the cell
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Crenation
When an animal cell shrinks due to water moving out of the cell
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Water potential
The measure of the tendancy of water molecules to diffuse across a membrane
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Vesicles
Small membrane bound containers used in bulk transport that can fuse with the cell surface membrane
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Channel proteins
Proteins that form pores or channels in the membranes. They can be specific due to their shape and some are gated (can be open or closed)
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Carrier proteins
Proteins that are specific to the molecule they carry. Change shape to allow molecule through. Some are used in active transport and only work in one direction, some are used in facilitated diffusion
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Other cards in this set

Card 2

Front

The passive movement of a substance from an area of high concentration to low concentration

Back

Diffusion

Card 3

Front

The bulk movement of substances into a cell

Back

Preview of the back of card 3

Card 4

Front

The bulk movement of substances out of a cell

Back

Preview of the back of card 4

Card 5

Front

The bulk movement of liquids

Back

Preview of the back of card 5
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