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Definition
| One of a group of plants that lack xylem and phloem; a nonvascular plant. Bryophytes include mosses, liverworts, and hornworts. |
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| A naked-seed plant. Its seed is said to be naked because it is not enclosed in an ovary. |
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Definition
| A flowering plant, which forms seeds inside a protective chamber called an ovary. |
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Definition
| Plant tissue consisting of cells joined into tubes that transport water and nutrients throughout the plant body. |
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Definition
| The structure that will produce the sperm in seed plants; the male gametophyte. |
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Definition
| A plant embryo packaged with a food supply within a protective covering. |
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Definition
| The densely branched network of hyphae in fungus. |
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Definition
| A structural polysaccharide found in many fungal cell walls and in exoskeletons of arthropods. |
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Definition
| A close association between a fungus and an alga or between a fungus and a cyanobacterium, some of which are known to be beneficial to both partners. |
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Definition
| A close association of plant roots and fungi that is beneficial to both partners. |
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Leaf, stem, root, root hair |
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Definition
Leaf: The main site of photosynthesis in a plant; consists of a flattened blade and a stalk that joins the leaf to the stem.
Stem: The part of a plant's shoot system that supports the leaves and reproductive structures.
Root: Anchor in soil, absorb and transport minerals and water, and store food.
Root hair: An outgrowth of epidermal cell on a root, which increases the root's absorptive surface area. |
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| Describe the structures and functions in a flower |
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Definition
- Stamen
This is the male part of the flower. It is made up of the filament and anther, it is the pollen producing part of the plant. The number of stamen is usually the same as the number of petals.
- Anther
This is the part of the stamen that produces and contains pollen. It is usually on top of a long stalk that looks like a fine hair.
- Filament
This is the fine hair-like stalk that the anther sits on top of.
- Pistil
This is the female part of the flower. It is made up of the stigma, style, and ovary. Each pistil is constructed of one to many rolled leaflike structures.
- Stigma
One of the female parts of the flower. It is the sticky bulb that you see in the center of the flowers, it is the part of the pistil of a flower which receives the pollen grains and on which they germinate.
- Style
Another female part of the flower. This is the long stalk that the stigma sits on top of.
- Ovary
The part of the plant, usually at the bottom of the flower, that has the seeds inside and turns into the fruit that we eat. The ovary contains ovules.
- Ovule
The part of the ovary that becomes the seeds.
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Term
| Describe the characteristics of the Kingdom Plantae and the divisions Bryophyta, Pterophyta, Gymnosperms and Angiosperms. |
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Definition
- Cell wall made of cellulose
- photoautotrophic
- multicellular
- non-mobile
- Bryophytes: mosses+liverworts. No roots, no vascular tissue
- Pterophyta: Roots. Vascular tissue grows very low to the ground and most places. Sperm swims to egg.
- Gymnosperms: Pine trees, cone bearing plants. They have roots, vascular tissue. Pollen allowssperm to get to egg through air and seeds are dispersed.
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| Why are fungi important to ecosystems? |
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Definition
| Fungi serve as one of the principal decomposers in ecosystems. As decomposers fungi return various important elements such as carbon and nitrogen back to the environment thus preventing them from becoming tied up in organic matter. Fungi are often found growing on woody substrates, soils, leaf litter, dead animals, and animal exudates |
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