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7 Cards in this Set
- Front
- Back
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Osmosis |
The net movement of water molecules from an area of high water concentration to an area of low water concentration and through a semi permeable membrane. Moves down a concentration gradient. |
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Diffusion |
The net movement of particles from an area of high concentration to an area of low concentration. Moves down a concentration gradient. |
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Active Transport |
The net movement of particles from an area of low concentration to an area of high concentration,using energy. Moves up a concentration gradient. |
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Animal cells sub-cellular structures |
• Nucleus • Cytoplasm • Cell membrane • Mitochondria • Ribosomes |
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Plant cells sub-cellular structures |
Same as animal,but also: • Cell wall • Large vacuole • Chloroplasts |
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Bacterial cell sub-cellular structures |
• Chromosomal DNA • Ribosomes • Cell membrane • Plasmid DNA • Flagella |
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How is an egg cell adapted to its function? |
1) Contains nutrients in cytoplasm to feed embryo. 2) It has a haploid nucleus. 3) Membrane changes shape after fertilization to avoid more sperm. |
