Plant Structure and Function Flashcards
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Read the first 7 Plant Structure and Function flashcards as text
In angiosperms, double fertilization produces:
Answer: A zygote and triploid endosperm
One sperm fertilizes the egg and the other fuses with two polar nuclei, forming 3n endosperm.
Which part of the flower develops into the fruit?
Answer: Ovary
The ovary wall matures into the fruit surrounding the seeds.
Monocot seeds differ from dicot seeds in having:
Answer: One cotyledon
Monocots have a single cotyledon, parallel leaf veins, and scattered vascular bundles.
Which structure in a flower produces the male gametophyte (pollen)?
Answer: Anther
Microspores develop within the anther into pollen grains.
In the plant life cycle, the dominant generation in flowering plants is the:
Answer: Diploid sporophyte
Angiosperm sporophytes are large and conspicuous, while gametophytes are microscopic.
Which process produces haploid spores in the sporophyte?
Answer: Meiosis
Sporophyte cells undergo meiosis to make haploid spores that grow into gametophytes.
Secondary growth in woody dicots results from activity of the:
Answer: Vascular cambium and cork cambium
Vascular cambium adds secondary xylem and phloem, while cork cambium forms bark, increasing girth.
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