1Science plant vocab
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- day-neutral plant
- plant that doesn't require a specific photoperiod and can begin the flowering process over a range of night lengths
- frond
- Leaf of a fern that grows from the rhizome.
- photosynthesis
- Process by which plants and many other producers use light energy to produce a simple sugar from carbon dioxide and water and give off oxygen.
- short day plant
- Plant that generally requires long nights-- 12 or more hours of darkness to begin the flowering process.
- long day plant
- Plant that generally requires short nights-- less that 10-12 hours of darkness to begin the flowering process.
- tropism
- Positive or negative plant response to an external stimulus such as touch, light, or gravity.
- gymnosperm
- Vascular plants that do not flower. Produce seeds that are not protected by fruit (ex. Conifers).
- cellulose
- Chemical compound made out of sugar. Provides structure and support in plants.
- stamen
- Male reproductive organ inside the flower. Pollen grains form, and a filament.
- chlorophyll
- Green, light-trapping pigment in plant chloroplasts that is important in photosynthesis.
- vascular plant
- plants with tube like structures that move minerals, water and other substances throughout the plant
- cuticle
- Waxy, protective layer that covers the stems, leaves, and flowers of many plants. Helps prevent water loss.
- pollination
- Transfer of pollen grains to the female part of a seed plant by agents such as gravity, water, wind, animals.
- germination
- Series of events that results in the growth of a plant from the seed.
- pistil
- Female reproductive organ inside the flower of an angiosperm. Contains a sticky stigma where pollen lands.
- angiosperm
- Flowering vascular plants that produce fruits.
- ovule
- In seed plants, the female reproductive part that produces eggs.
- ovary
- Swollen base of an angiosperm's pistil where egg-producing ovules are found.
- nonvascular plant
- plant that absorbs water and other substances directly through its cell walls
- stomata
- Tiny openings in a plant's epidermis through which carbon dioxide, water vapor, and oxygen enter and exit.