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Chapter 5: Plants and Society

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