Term
| All seed plants (AKA ___ and ___) are ___, based on which type of spores they produce. |
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Definition
gymnosperms
angiosperms
heterosporous |
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Term
| Early gymnosperms (cycads and ginkgos) still have ___-motile sperm. All other gymnosperms and angiosperms have non-motile sperm. |
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Definition
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Term
| In gynmosperms, the pine tree is a ___. Pine cones are ___, because they encase the pollen. Pollen grains shed from the ___. Pollen grains are the male ___. The sperm inside the pollen is the male ___. |
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Definition
sporophyte
sporangium
sporangium/pine cones
gametophyte
gamete |
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Term
| Ovules are the female ___, because they produce and hold the embryo. The embryo, which is the female ___, produces the gametes, which are ___. |
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Definition
sporangium
gametophyte
gamete |
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Term
| Pollen, a male gametophyte in later gymnosperms and angiosperms, lands on the ___ and germinates, forming a pollen tube. |
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Definition
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Term
| All gymnosperms have one type of xylem (vascular tissue), ___, except for gnetophytes, which also have ___. |
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Definition
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Term
| There are four groups of gymnosperms: ___ (four groups). |
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Definition
cycads
ginkgos
gnetophytes
conifers |
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Term
| Cycads are ___; they have male and female plants. Their tissues are ___ to humans. |
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Definition
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Term
| Ginkgos were much more common 80-240mya. Currently, Ginkgo biloba is the only remaining species. They are ___, meaning they have male and female plants. They are planted in many cities, because they are quite resistant to ___. The decaying tissue around their seeds smells rancid (this is only present in female trees). They are also used in medicine and may be able to cure ___. |
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Definition
dioecious
smog
Alzheimer's |
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Term
| Gnetophytes are similar to angiosperms in that they produce wood with ___ xylem. |
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Definition
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Term
| ___ are a type of gymnosperm that are found world-wide. Some of them are the tallest and oldest plants found. |
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Definition
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Term
| Double fertilization, creating an ___ for nutrition to the seed, is seen in ___. |
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Definition
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Term
| Double fertilization occurs in angiosperms. The pollen germinates after landing on the ___. A pollen tube, containg a ___ cell, makes its way to the ovule, into the embryo (female gametophyte). The embryo contains three ___ cells on top, two ___ in the middle, and two ___ along with an egg on the bottom. The synergids attract the sperm. While still in the pollen tube, the generative cell divides meiotically to produce two haploid sperm cells. One of these sperm fertilizes the egg, the other forms an endosperm with the two ___. |
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Definition
stigma
generative
antipodal
polar nuclei
synergids
polar nuclei |
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Term
| The ovule is the female ___, the embryo is the female ___ and the egg is the female ___ in seed plants. |
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Definition
sporangium
gametophyte
gamete |
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Term
| The endosperm is the embryo's ___ supply. It makes many types of seeds humans eat, like grain flour (wheat, barley, oat, etc), the meat of coconuts and the white part of popcorn. |
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Definition
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Term
| In angiosperms, the anther is the male ___, pollen is the male spore/___ and the sperm is the male ___. |
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Definition
sporangium
gametophyte
gamete |
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Term
| The bigger colorful part of flowers is called a ___, and the smaller part a ___. The "bulb" beneath the flower head is called the ___ and leaves branching off its stem are called ___. |
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Definition
petal
sepal
receptacle
bract |
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Term
| The pistil (or carpel) is the ___ part of an angiosperm. From top to bottom, it contains the ___, ___ and ___. |
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Definition
female
stigma
style
ovary |
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Term
| The male part of angiosperms (the ___) contains (from top to bottom) the ___ and ___. |
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Definition
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Term
| The pistil refers to the outside structure, while the carpel more specifically refers to the chambers housing the ___. One pistil can have multiple carpels. If a pistil has one carpel, it is called a ___ pistil, while if it has multiple it is called a ___ pistil. |
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Definition
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Term
| Four parts of angiosperms are thought to have evolved from leaves: ___ (four parts) |
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Definition
| stamens, carpels, petals and sepals |
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Term
| A "complete flower" has: ___ (four things). |
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Definition
| anthers, ovary, petals and sepals |
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Term
| A bisexual (AKA perfect or hermaphroditic) flower has both ___ and ___. A unisexual (AKA imperfect) flower has one or the other. |
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Definition
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Term
| In some plants, if the s allele on the stigma and pollen grain that lands on it match, most likely, the pollen will ___. This is called self-incompatibility, and prevents inbreeding. |
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Definition
| not germinate and fall off |
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Term
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Definition
| flower cluster on a plant |
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Term
| Compound flowers are the second largest family of angiosperms. The inflorescence is the ___. There are two types of flowers: disk flowers in the head and ray flowers, which are located ___. |
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Definition
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Term
| Dioecious plants are unisex individuals who have ___ or ___ flowers. Monoecious plants are individual plants that have flowers with both male and female parts. |
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Definition
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