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10 Cards in this Set
- Front
- Back
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where are organelles located? |
the cytoplasm, a colourless jelly like substance |
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why do plants need nitrogen? |
nitrogen causes leafy green growth and development of plant. |
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why do plants need phosphorous? |
phosphorous is needed for seed germination and causing the growth/development of roots. |
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why do plants need phosphorous? |
potassium causes flowering, fruit and helps to prevent diseases. |
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what is osmosis? |
osmosis is the movement of water from an area of high to low concentration. When there are more water particles in the soil vs the roots, the water moves into the roots. (Think push of roots plus pull from leaves). |
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What is fertilization? |
fertilization is where the pollen combines with an ovule to form a zygote (the seed). |
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What are trophic levels? |
feeding levels in a food chain |
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Explain changes of state: |
there is a change of state from solid to liquid. With an input of heat energy, particles gain kinetic energy. Thus, the particles are vibrating faster and so the attractive forces (The bonds) between them weaken, but do not break. |
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what is a compound? |
2 or more different atoms. metal and non metal = ionic compound. |
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When light rays hit a surface, they can: |
refract, absorb or reflect |
