A | B |
Characteristics of Fungi | Eukaryotic, multicellular, heterotrophic, cell walls made of chitin, body structure composed of hyphae, absorbs food through the cell wall |
Examples of Fungi | Mushrooms, fairy rings, pilobolus, mold, predatory fungus, budding yeast |
How fungi obtain food | Absorption; small organic molecules are absorbed from the surrounding medium |
Fungi Structure | Hypha, nucleus, ribosomes, mitochondria |
Mycelium | A series of hyphae |
Fungi Reproduction | Release spores produced sexually or asexually; spores germinate mycelia if are is moist |
Ecological impact of Fungi | Decompose, keeping ecosystems stocked with the inorganic nutrients essential for plant growth; Parasitic Fungi, 30% of fungi make their living as parasites, mostly on or in plants, sometimes in animals; Commercial Uses of Fungi- Mushrooms are used as food, and some fungi are used for medical purposes |
Mutualism | Symbioses that benefits both species |
Symbiotic Association of Fungi and Lichen | Fungal hyphae wraps itself around an algal cell, obtaining food while the algae gets protection |
Ecological impact of Mycorrhizae | Showcases the food web |
Yeast | Unicellular fungi which reproduces by budding |
Plant adaptions to the water environment | Thin leaves(quick diffusion of oxygen), lacks water pro of covering, no roots, stems, or leaves |
Plants structural adaptations to terrestrial life | Structural specialization into subterranean and aerial organs; roots and leaf-bearing shoots, respectively |
Other Adaptation to terrestrial life | Symbiotic fungi in roots mycorrhizae. Absorbs water and minerals from the soil, while sugars from plant nourish fungi |
Leaves | A photosynthesis workshop; exchange of carbon dioxide |
Lignin | Hardening chemical in cell walls |
Vascular Tissue | Tube shaped cells |
Reproductive Adaptations to Terrestrial Life | in dry environment, they must disperse in right conditions, so produce protective called gametangia, jacket of protective surrounding a moist chamber where gametes can develop; egg is fertilized in mother tissue, then via wind or animals is dispersed as an embreyo |
First Land Plant | Green Algae, ancestor of all green plants |
Ferns | Diversification of vascular plants; earliest lacked seeds, like ferns |
Gymnosperms | Origin of the seed, early seeds had no protective chamber |
Examples of Gymnosperms | Conifers, pines |
Angiosperms | Emerging of flowering plants |
What the Gametophyte Generation uses to reproduce | Bryophytes, or mosses, sponge-like plant that is obvious. |
Alternation of Generations | The type of life cycle in plants and certain algae; gametophyte and sporophyte are alternating generations that take turns producing each other |
Example of Bryophytes | Mosses |
Bryophytes adaptations to terrestrial life | A waxy cuticle to prevent dehydration, rentation of developing embreyos, |
Bryophytes handicaps to terrestrial life | No vascular tissue to carry water from soil to plant; lack liguin, a well-hardening material |
Examples of Ferns | Fiddleheads |
Fern adaptations to terrestrial life | Developed vascular tissue |
Fern handicaps to terrestrial life | Seedless; not a large population |
Examples of Gymnosperms | Conifers |
Gymnosperm adaptations to terrestrial life | Retain leaves throughout the year |
Gymnosperm handicaps to terrestrial life | Very large; have a tremendous amount of DNA |
Examples of Angiosperms | Cereal Grains |
Angiosperm adaptations to terrestrial life | Pollen |
Importance of maintaining biodiversity | to maintain a good source of nutrients and oxygen |
Succession | The gradual change in community composition of an area |
Primary Succession | Begins in an area where there is no life |
Start of Primary Succession | Rock, lava flow, new sandbar |
Secondary Succession | Occurs where an existing community has been removed by some sort of disturbance |
Start of Secondary Succession | Forested Areas |
The Progression of Succession | Community changes, a variety of species colonize the area, may be replaced by another species |
Pioneer Community | The first plants to invade an area |
examples of Pioneer Community | Grasses, mosses, ferns |
Climax Community | The final, stable community in succession |
Key traits of Angiosperms | Flowering plants, water is transported from refinements in vascular tissue, displays sex life, displays male and female parts |
Monocot Flower | Contains parallel vascular tissue |
Dicot Flower | Contains branching vascular tissue |
Pistol(carpel) | Female organ; ovary, stigma, and style |
Ovary | Chamber in which eggs develop |
Stigma | Sticky tip of the pistol which traps pollen |
Style | The stalk of the pistol |
Anther | Male Organ; pollen grains develop |
Filament | Stem of the anther |
Petal | Striking part of the flower |
Sepal | Green; encloses the flower before it opens |
Pollination | Pollen is transfered in plants |
Cross Pollination | Pollen is delivered to different plants |
Self Pollination | Pollen is delivered to the same plant |
Structure | Wings, sperm, pollen tube |
Double Fertilization | A diploid zygote and a triploid endosperm form |
Seeds | Matured ovules |
Function of a matured ovary | To create new flowers |
Angiosperm seeds dispersed | Spores, seeds, leaf cuticles, pollen, current |
Seed Dormancy | Seeds are prevented from germinating |
Why Seed Dormancy is Advantageous | To emerge when conditions are favorable |
Environmental factors causing seed dormancy to break | Sunlight, water, temperature |
Structure of a dicot seed | Seed coat, endosperm tissue, plant embryo |
Seed Germination | Seeds grow into plants |
Life Cycle of Angiosperms | Pollination, Pollen Tube Formation, Double Fertilization, Seed and Fruit Formation, Seed Dispersal, Germination, Plant Growth and Flower Formation |
Cross Walls | Divide fungal hyphae into cells |
Filamentous | Spread apart |
Colonial | Together |
Tracheophytes | Plants with roots, stems, and leaves |
Cuticle | Tough, outer covering of an organism |
Lignin | A chemical compound mostly derived from wood |
Endosperm Tissue | Seeds produced around the time of fertilization |
Mycorrhizae | Symbioses between fungi and the roots of a plant |
Lichen | A fungus that grows symbiotically with algae |
Spores | A reproductive body produced by non-flowering plants |
Budding | One cell becomes two cells, and so on |
Fragmentation | Mold splits into fragments |
Binary Fission | A single cell divides into two individuals |