Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 32, Problem 4RQ
In a plant’s male reproductive organs, development of pollen takes place in a structure known as the.
- stamen
- microsporangium
- anther
- tapetum
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Which of the following is NOT part of the male reproductive parts of a flower?
Anthers
Sperm cells
Microspores
Ovule
Pollen
Pollen grains are derived from a microsporocyte, developed inside the microsporangia of an anther,
and are supposed to contain 2 sperm cells and a tube nucleus.
O True
False
In regards to the life cycle of the flowering plants, one place meiosis takes place is;
In the fully developed pollen grain
In the growing seed
In the calyx
In the ovule
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- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardFigure 32.3 If the anther is missing, what type of reproductive structure will the flower be unable to produce? What term is used to describe a flower that is normally lacking the androecium? What term describes a flower lacking a gynoecium?arrow_forwardIn an angiosperm life cycle, sexual reproduction includes: meiosis within the male gametophyte to produce sperm. meiosis within the female gametophyte to produce eggs. meiosis within the ovary to produce megaspores. fertilization leading to development of microspores. fertilization leading to development of megaspores.arrow_forward
- Figure 14.26 If a flower lacked a megasporangium, what type of gamete would it not be able to form? If it lacked a microsporangium, what type of gamete would not form?arrow_forwardAfter double fertilization: a zygote and ______ form. an ovule endosperm a cotyledon asuspensorarrow_forwardSeeds are mature _______ ; fruits are mature_______ . a. ovaries; ovules c. ovules; ovaries b. ovules; stamens d. stamens; ovariesarrow_forward
- Figure 23.28 Which of the following statements about the Laminaria life cycle is false? In zoospores form in the sporangia. The sporophyte is the 2n plant. The gametophyte is diploid. Both the gametophyte and sporophyte stages are multicellular.arrow_forwardFigure 26.8 At what stage dees the diploid zygote form? when the female cone begins to bud from the tree at fertilization when the seeds drop from the tree when the pollen tube begins to growarrow_forwardDuring the process of double fertilization, the pollen tube grows into the ovule through an opening called the pollen tube enters a cell, which will degenerate and release two sperm. oooo synergid, micropyle micropyle, endosperm micropyle, synergid synergid, endosperm From there, thearrow_forward
- In the Kotukutuku plant, Fuchsia excortiata, why do pollinated flowers remain attached to the plant for several days after pollination occurs and nectar is no longer produced Size of flower and pollination Annual versus perennial reproduction Time and expense to grow the pollen tube outweighs the cost of maintaining the flower on the tree Size of flower and number of flowers on inflorescencearrow_forwardIn flowers,the structure that produce male and female gametophytes are called______and____arrow_forwardSeveral structures work together to allow flowering plants to reproduce The diagram shows a typical flower. Anther Filament Stigma Style Ovary Sepal hich table correctly identifies the function of each structure or group of structures in the reproduction of the Protection for embryo Foa productton and ombnio dovolomont Previousarrow_forward
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