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Chapter 2 Vocabulary Crossword

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Across
3
Only certain substances can pass through
5
The diffusion of water through a semi permeable membrane
6
The process by which the contents of a cell vacuole are released to the exterior
7
The movement of a substance across the cell membrane that requires the cell to use energy
8
Chemical process that generates most energy in the cell, supplying molecules needed to make the metabolic reaction
12
The chemical breakdown of a substance
13
A water particle
Down
1
The movement of particles from regions of higher density to lower density
2
Green plants and some other organisms use sunlight t synthesize foods from carbon dioxide
4
The movement of a substance across the cell membrane that requires the cell to use no energy
9
The particles in a vesicle to bring the particle into the cell
10
Green pigment found in all green plants, responsible for absorption of light to provide energy for photosynthesis
11
The degree of compactness of a substance