Chapter 24
Terms
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- style
- narrow stalk of the carpel in a flower
- ovary
- a flower structure that contains one or more ovules from which female gametophytes are produced
- budding
- process of attaching a bud to a plant to produce a new branch
- ovule
- structure in seed cones in which female gametophytes develop
- dormancy
- period of time during which a plant embryo is alive but not growing up
- stamen
- male part of the flower; made up of an anther and a filament
- endosperm
- food-rich tissue that nourishes a seedling as it grows
- sepal
- outermost circle of flower parts that encloses a bud before it opens and protects the flower while it is developing
- anther
- flower structure in which haploid male gametophytes are produced
- carpel
- innermost part of a flower that produces the female gametophytes
- stigma
- sticky portion at the top of the syle where pollen grains frequently land
- double fertilization
- fertilization in angiosperms, in which two distinct fertilization events take place between the male and female gametophytes
- germination
- early growth stage of a plant embryo
- vegetative reproduction
- method of asexual reproduction used by many flowering plants
- stolon
- a long, trailing stem that produces roots when it touches the ground
- seed cone
- cone that produces female gametophytes
- grafting
- use of a stem as a scion
- pollen cone
- cone in gymnosperms that produces male gametophytes in the form of pollen grains
- petal
- brightly colored structure just inside the sepals; attracts insects and other pollinators to a flower
- pollen tube
- structure grown by a pollen grain; contains two haploid sperm nuclei