Terms in this set (23)
Eukaryotic, non-photosynthetic, and most are multicellular heterotrophs. They are microscopic moulds or yeast
What do fungi contribute to
Food, medicine, and the recycling process that releases nutrients from dead organisms back into the environment
How do fungi differ from plants
They lack chlorophyll, not photosynthetic,never reproduce by seeds, cell walls are made of chitin
How do fungi digest their food
Outside of their body's by secreting enzymes that break down organic material. They then absorb food through their cell walls.
Unicellular fungi with a cell wall containing chitin. They are eukaryotic organisms that undergo cell division
Tiny tubes filled with cytoplasm and nuclei, the cell walls contain chitin
A mat of hyphae visible to the unaided eye
The cross section segments (walls) that some hyphae are divided by. The hyphae are then called septate hyphae and the ones that don't have septa are called coenocytic
Fungi Sexual Reproduction
Occurs in fungi mostly when nutrients or water become scarce
Fungi Asexual Reproduction
Produces genetically identical offspring and is common when nutrients and water are abundant. Some unicellular fungi reproduce by mitosis. Yeast cells reproduce by budding. Most fungi can grow from a small piece of mycelium called fragmentation (athletes foot). Most fungi can reproduce asexually by spores.
The means by which fungi are dispersed. Each spore contains a nucleus and dehydrated cytoplasm surrounded by a protected coat. It is a haploid reproductive cell, that is capable of developing into a new individual
Consists of a stalk, and sac where spores are produced. Modified cells of hyphae where thousands of genetically identical haploid spores are produced
Specialized hyphae that look like upright stalks that an enclosed sac called a sporangium is on top of it, where sporangiospores are made. (Rizopus)
Phylum Zygomycota (common molds)
Hyphae do not have septa but have rhizoids, stolons, and sporangiophores . Include bread molds, black bread mold, and rhizopus stolonifera that grow anywhere there is water and nutrients. Most species are terrestrial.
(Root like structures) the part of the hyphae used by the fungus to anchor to its source of food. They penetrate the food surface
Hyphae that connect one group of rhizoid to another. They spread across the surface of the food source
Usually called Club fungi because they produce club like reproductive structures called basidia. They produce sexually by forming spores in a basidium which lines the gills inside mushroom cap
Mutualistic associations between a fungus and the roots of a plant. Fungus absorbs nutrients made by the plant during photosynthesis. The fungus hyphae act as root extensions that increase the plants ability to absorb water from the soil. The fungus digestive enzymes secreted by fungus help break down organic matter in soil which plant can absorb the nutrients and minerals.
Symbiotic association between a fungus and a photosynthetic organism. When lichen grow on bare rock they help breakdown rock into soil.
Fungi as a human disease
Fungi attack our food source, and mold spores can cause allergies. It can infect tissues of body and fungus on skin can cause athletes foot and ringworm. Causes yeast infections as well. Serious fungal diseases that involve internal organs often caused by dimorphic fungi.
Fungi in industry
Often used as a food source (truffles, morels, white button mushrooms, shiitake mushrooms and portabello mushrooms.) Fungi that are plant pathogens attack grain or fruit (wheat rust that attacks wheat grains, corn, beans, onions, squashes, and tomatoes.)
Fungi and environment
Most are saprophytic or decomposers. They work with monerans and protists to decompose waste and remains of plants and animals