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PLS_Flowers
Chapter 5: Plants and Society
| Question | Answer |
|---|---|
| Most numerous division of all true plants | Angiosperms |
| What do flowering plants supply humanity with? | Food, clothing, shelther |
| What are dicots? | 3/4 of all angiosperm species |
| How many cotyledons do dicots have? | Two |
| What is the arrangement of dicots? | Multiples of fours or fives, netted veins, pollen grain with 3 apertures, vasuclar bundles arranged in ring |
| What are monocots? | 1/4 of all angiosperm species |
| How many cotyledons do monocots have? | One |
| What is the arrangement of monocots? | Multiples of threes, parallel veins, pollen grains with one aperature, vascular bundles arranged in a scattered pattern |
| Annuals | Plant that complete life cycle in a year |
| Biennials | Plants that complete life cycle over a tow-year period |
| Perennials | Plants which live for more than two years and may flower at various times |
| What are the sterile parts of a plant? | Peduncle, receptacle, sepals, petals, calyx and corolla |
| What are the fertile parts of a plant? | Stamens, carpel/pistil |
| What is the gynoecium? | The collective term for the female structures or carpel(s) of the flower |
| Describe complete flowers. | Contain all four floral parts: sepals, petals, stamens, and carpels |
| Describe incomplete flowers. | Missing at least one of the four fundemental parts |
| Describe perfect flowers. | Contain both stamens and carpels. (monoecious) |
| Describe imperfect flowers. | Either staminate or carpellate, but not both. (dioecious) |
| Regular flowers display what type of symmetry? Irregular flowers? | Radial; Bilateral |
| Upon pollination, what develops into the pollen tube? | Pollen grain cell (vegetative cell) |
| What is double fertilization? | Process where both sperm nuclei undergo fusion. Then, the ovule matures into a seed and the ovary matures into a fruit |
| What is parthenocarpy? | Fruit formation without fertilization |
| How can parthenocarpy occur? | Either naturally, like in bananas or navel organges, or can be chemically induced (hormones) |
| What family are legumes a part of? | Fabaceae |
| In legumes, what is the part that develops into a plant? | Plumules |
| What part do we eat in peanuts? | Cotyledon |
| What does the bacterium Rhizobium do for legumes? | Have nitrogen-fixing properties that convert nitrogen to nitrates and ammonium |
| What is the Cinderella crop and who is the second leading producer behind Brazil? | Soybeans; US |
| Why can't soybeans be eaten raw? | They contain a trypsin inhibitor that is only deactivated by heat |
| What is TVP? | Textured vegetable protein that is often used as a meat extender |
| What are the two major varieties of peanuts? | Virginia and Spanish peanuts |
| What is the name of the legume deemed "Jack's beanstalk" | Lead tree - Leucaena |
| What is the most widely grown legume used as a forage crop and makes the best types of hay? | Alfalfa - Medicago |
| What is the legume crop native to South Asia and all parts of theplant can be used as a food sourse? | Winged Bean |
Created by:
jorprice
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