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Questions and Answers
In the process of alternation of generations, which structure develops from the diploid sporophyte?
In the process of alternation of generations, which structure develops from the diploid sporophyte?
- Flowers
- Seeds
- Spores (correct)
- Gametes
What does the haploid gametophyte produce that fuses to create a diploid organism?
What does the haploid gametophyte produce that fuses to create a diploid organism?
- Gametes (correct)
- Seeds
- Embryo
- Spores
Which characteristic describes a bisexual flower?
Which characteristic describes a bisexual flower?
- Contains extra sepals
- Contains only stamens
- Contains only carpels
- Contains both stamens and carpels (correct)
In a eudicot seed, what does the zygote become?
In a eudicot seed, what does the zygote become?
What is the primary method of seed dispersal for fleshy fruits?
What is the primary method of seed dispersal for fleshy fruits?
What is the male gonad and the female gonad respectively?
What is the male gonad and the female gonad respectively?
What is the inner lining of the uterus called?
What is the inner lining of the uterus called?
During the first half of the ovarian cycle, what role does follicle-stimulating hormone (FSH) play?
During the first half of the ovarian cycle, what role does follicle-stimulating hormone (FSH) play?
What is the second half of the ovarian cycle referred to as?
What is the second half of the ovarian cycle referred to as?
Which pairing of cycle phase and hormone level is incorrect?
Which pairing of cycle phase and hormone level is incorrect?
How does a birth control pill primarily function?
How does a birth control pill primarily function?
How do nonflagellated plant sperm reach the ovule from the stigma?
How do nonflagellated plant sperm reach the ovule from the stigma?
Which structure-to-function match is incorrect?
Which structure-to-function match is incorrect?
Flashcards
Alternation of Generations (Plants)
Alternation of Generations (Plants)
Diploid sporophyte produces spores, which develop into haploid gametophytes; haploid gametophytes produce gametes that fuse to create a new diploid sporophyte.
Bisexual Flower
Bisexual Flower
A flower containing both stamens (male reproductive parts) and carpels (female reproductive parts).
Double Fertilization
Double Fertilization
The fusion of one sperm cell with the egg (forming the zygote) and another sperm cell with the polar nuclei (forming the endosperm).
Eudicot Seed Parts (embryo/endosperm)
Eudicot Seed Parts (embryo/endosperm)
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Seed Dispersal (fleshy fruit)
Seed Dispersal (fleshy fruit)
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Male gonad
Male gonad
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Female gonad
Female gonad
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Uterine lining
Uterine lining
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Ovarian cycle (first half)
Ovarian cycle (first half)
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Ovarian cycle (second half)
Ovarian cycle (second half)
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Birth control pill action
Birth control pill action
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Plant sperm transport
Plant sperm transport
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Double fertilization outcome
Double fertilization outcome
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Study Notes
Human Reproductive System
- Male gonad: testis
- Female gonad: ovary
Uterus Lining
- Inner lining of the uterus: endometrium
Ovarian Cycle - First Half
- Follicle-stimulating hormone (FSH) stimulates estrogen-secreting follicles.
Ovarian Cycle - Second Half
- Luteal phase
Ovarian Cycle Mismatched
- Menstruation is not associated with FSH peaks, but rather a decline in progesterone.
Contraception
- Birth control pills inhibit follicle-stimulating hormone (FSH) and luteinizing hormone (LH) production.
Plant Reproduction
- Plant sperm are non-flagellated. Sperm reach the ovule via a pollen tube.
Flower Structure and Function
- Sepal: protection of flower
- Filament: produces pollen
- Petal: attracts pollinators
- Ovary: contains female gametophyte
- Stigma: allows pollen to adhere
Microsporogenesis
- Microspores develop into pollen grains in the anther.
Double Fertilization
- Products of double fertilization in plant: 2n zygote and 3n endosperm
Plant Alternation of Generations
- Diploid sporophyte produces spores, which develop into haploid gametophyte.
- Haploid gametophyte produces gametes that fuse to produce a new diploid sporophyte.
Flower Types
- Bisexual flower: contains both stamens and carpels.
Seed Structure (Eudicots)
- Zygote becomes the embryo.
- Cotyledons are derived from the endosperm. Stored food within the seed.
Fruit Dispersal
- Fleshy fruits are dispersed by animals consuming them and passing the seeds in their feces.
Gametophyte Location
- Gametophytes of flowering plants are found within the flower.
Double Fertilization Site
- Double fertilization occurs in the ovule, specifically within the embryo sac.
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