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Flashcards in 1st Bio Quiz Deck (8)
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Osmosis

Diffusion of water molecules across a semipermeable membrane from an area of lower water concentration

1

Isotonic

Solution that Has an equal concentration of dissolved particles compared with another solution.

2

Hypertonic

Solution that has a higher concentration of dissolved particles compared with another solution.

3

Cell membrane

Double layer of phospholipids that forms a boundary between a cell and the surrounding environment and controls the passage of materials in and out of the cell.

4

Phospholipids

Molecule that forms a double layer cell membrane consists of glycerol, and 2 fatty acids

5

Fluid mosaic model

Model that describes the arrangement and movement of the molecules that make up a cell membrane

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Selective permeability

Condition or quality of having some, but not all, materials cross a barrier or membrane

7

Receptor

Protein that detects a signal molecule and performs an action in response