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22 Cards in this Set
- Front
- Back
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Nitrates |
Make amino acids, which are needed in making proteins |
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Magnesium |
Makes chlorophyll |
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Phosphate |
Essential for DNA and membrane |
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Potassium |
Essential for plant membrane |
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Biological control |
Introducing biological organisms which will eat pests but not crop (birds eat caterpillars) |
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Pesticide |
Chemical that kill pests |
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Pallisade Mesophyll |
Tall cells closely packed to absorb light and light. Contain chloroplasts. Photosynthesis takes place. |
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Spongy Mesophyll |
Capture light and make food. Air spaces between for easier gas exchange. |
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Epidermis |
Protects leaf, transparent to let light through |
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Plant Veins |
Xylem on top phloem on bottom |
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Xylem |
Water is absorbed from the soil through root hair cells Transported through the xylem vessels up the stem to the leaves Evaporates from the leaves (transpiration) |
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Phloem |
Transports sucrose and amino acids up and down the stem |
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Stomata |
Allow gas exchange, water Vapour lost through it. Only open in photosynthesis in daylight, close at night to reduce loss of water. |
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Photosynthesis chemical equation |
6CO2 + 6H2O > 6O2 + C6H12O6 |
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Photosynthesis word equation |
Carbon dioxide + water > oxygen + glucose |
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How plants use glucose |
•respire •store as starch •turned into cellulose •used to make fats and oils |
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What xylem consists of |
Dead cells, thigh and strengthened cellulose cell wall with hollow lumen. |
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What xylem consists of |
Dead cells, thick and strengthened cellulose cell wall with hollow lumen. |
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What phloem consists of |
Columns of living cells |
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Plants store carbohydrates |
Starch or glucose |
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Plants store carbohydrates |
Starch or glucose |
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Animals store carbohydrates |
Glycogen |
