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30 Cards in this Set
- Front
- Back
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Mosses are...?
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Plants that do not produce seeds, the conspicuous plant is a haploid, the haploid plants can reproduce, the haploid plants are male and female and show alternation of generations
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What is require for fertilization?
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Water
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What produces seeds inside a fruit?
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Angiosperms
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What are the different types of whorls and their components?
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Calyx (sepals), corolla (petals), androecium (stamens), and gynoecium (carpels/pistils)
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What is the difference between an imperfect flower and a perfect flower?
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An imperfect flower is always an incomplete flower, while a perfect flower is not necessarily a complete flower
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What is a monoecious flower?
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A flower that has separate male and female reproductive units on the same plant
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What is a dioecious flower?
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A flower that has unisexual reproductive units with male and female plants
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Where is pollen produced?
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In the anthers from microspore mother cells
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Where are egg cells produced?
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In the ovule from megaspore mother cells. (the ovary)
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How many haploid cells are there in 7 cells?
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8
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What is pollination?
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The transport of the pollen from the anther to the stigma
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Where does the pollen tube grow?
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Down the stigma and style to the ovary
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What does the vegetative nucleus do?
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It directs the growth of the pollen. It disintegrates once the pollen tube reaches the ovule
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What does the sperm nucleus do?
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The 2 sn's come from mitosis dividing and move down the pollen tube
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The fertilized egg becomes what?
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The zygote
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What is the endosperm and what does it do?
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It is the triploid (3 nuclei) and it provides nutrients for the development of the zygote
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What is double fertilization?
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Fertilization of egg cell and lare cell in the center
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What is triple fusion?
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When the 3 nuclei come together in the large cell
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What are the radicle, stem, and cotyledons?
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They are the root, stem and embryonic leaves that resemble a plant
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What is a monocotyledon (monocot)?
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A one cotyledon plant (corn, wheat, grass)
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What are dicotyledons (dicots)?
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Two cotyledon plants (beans, peas, apples, oaks/acorns)
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What develops into the seed?
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The ovule
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What is the seed coat or testa?
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The outer ovules that serve as protection against the embryo and endosperm; test maintains the dehydration
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The ovary develops into the...?
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Fruit
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What becomes dormant?
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Plant embryos that don't develop continuously
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In order to ___ seeds must be activated?
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Germinate (some have to be burnt, some have to be frozen, some must be moist)
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The most certain sign of a seed germinating is the ___ of water?
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Imbibition (takes up a massive amount of water
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What always emerges first?
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The radicle or root
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What is the hypocotyl?
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Part of stem emerging out of the soil
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What is the epicotyl?
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Part of the stem between the cotyledons and the two true leaves
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