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Lecture 19 : Gymnosperms, Angiosperms Test

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5 Written Questions

5 Matching Questions

  1. Male gametophytes (____ ____) develop from ______ found on male cones
  2. Ovary
  3. Carpel
  4. What does "gymnosperm" mean? Why?
  5. Time of day that a flower is open may correlate with
  1. a Modified leaf that encapsulates the seeds and develops into fruit
  2. b Pollen grains; microspores

    Pollen grains develop air sacs to assist in dispersal
  3. c When bees are active
  4. d Swollen base which consists of many ovules; ovary later develops into a fruit
  5. e "Naked seed"
    Lack the flowers and fruits of angiosperms and the seeds are not enclosed by sporophyte tissue

5 Multiple Choice Questions

  1. Drug that was used to treat respiratory problems (was pulled from the market because it caused heart attacks/ strokes)
  2. A pollen tube
  3. Cycads and Ginkos have motile sperm, Conifers and Gnetophytes have non-flagellated sperm
  4. Extra layer of embryo protection
    Easily dispersed
    Seeds can be dormant and survive until environmental conditions are favorable
  5. Breaks the seed coat

5 True/False Questions

  1. Among insect-pollinated angiosperms, what insect is the most popular?Bees

          

  2. All seed plants are _____ and different spore types therefore give rise to...Heterosporous; two different gametophytes

          

  3. As compared to gymnosperms, angiosperms have/are...Vessels in their xylem (as well as their tracheids)

          

  4. At the center of the fourth whorl is the...Gynoecium, which houses the female gametophytes

    Can have more than one carpel

          

  5. Phylum ConiferophytaThe transfer of pollen from its source to a receptacle (stigma) of a flowering plant

          

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