movement of substances

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what is diffusion: the net movement of particles from a region of higher concentration to a region of lower concentration
what is osmosis: net movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane
what is active transport: process in which energy is used to move the particles of a substance across a membrane, against a concentration gradient, from a region of lower concentration. only occurs in living cells for respiration

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movement of substances

Cards (3)

Bio - movement of substances

topic 4

(sc bio)Movement of Substances Into & Out of Cells

movement of substances into and out of cells

Substance dualism

3.2 Use of amount of substance in relation to masses of pure substances

3.2 Use of amount of substance in relation to masses of pure substances

4.1.1.1 Substance Dualism

4.3 The Black Arts Movement

3.1 Historical Art Movements

2.1.2 Simple Molecular Substances

C2.1.1 Pure Substances and Mixtures

8.3 Substance Misuse

Unit 4: Movements and Debates (1940s–2000s)

2.1 Movement Across Membranes

3.2 Art Movements in the Spanish-Speaking World

2.2 Amount of Substance

5.3 Amounts of Substance

2.1.4 Metallic Substances

3. Organisms Exchange Substances with Their Environment

8.2 The Civil Rights Movement