Difference between revisions of "AY Honors/Seeds - Advanced/Answer Key"
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< AY Honors | Seeds - AdvancedAY Honors/Seeds - Advanced/Answer Key
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{{ay prerequisite|Nature|Seeds}} | {{ay prerequisite|Nature|Seeds}} | ||
| − | ==2. | + | ==2. Identify from drawings and know the purpose of each of the following parts of a seed: endosperm, radicle, plumule, micropyle. == |
| + | [[TODO|Add drawing]] | ||
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| + | ;Endosperm: Endosperm is the tissue produced in the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein. | ||
| + | ;Radicle: The radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil. | ||
| + | ;Plumule: The plumule is the embryonic shoot. It is the precursor to the stem and leaves of the plant. | ||
| + | ;Micropyle: | ||
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==3. Know several differences between a monocotyledon seed and a dicotyledon seed, and give three examples of each. == | ==3. Know several differences between a monocotyledon seed and a dicotyledon seed, and give three examples of each. == | ||
==4. Explain the purpose and use of a "rag doll" seed tester. Use it to test the germination of 100 seeds of a wild plant and 100 seeds of a domestic plant. Report the results of each test. == | ==4. Explain the purpose and use of a "rag doll" seed tester. Use it to test the germination of 100 seeds of a wild plant and 100 seeds of a domestic plant. Report the results of each test. == | ||
Revision as of 02:37, 14 January 2007
1. Have the Seeds Honor
2. Identify from drawings and know the purpose of each of the following parts of a seed: endosperm, radicle, plumule, micropyle.
- Endosperm
- Endosperm is the tissue produced in the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein.
- Radicle
- The radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil.
- Plumule
- The plumule is the embryonic shoot. It is the precursor to the stem and leaves of the plant.
- Micropyle
