Viruses are infectious agents, often highly host-specific, consisting of genetic material surrounded by a protein coat. Viruses are not alive, they cannot grow or multiply on their own and need to enter cell and take over the cell to help them multiply. Fungi – these are members of a large group of eukaryotic organisms that includes microorganisms such as yeast and molds, as well as the more familiar mushrooms. Fungi can be single-celled, multinucleated, or multicellular organisms. Although they are eukaryotes like plants and animals, the major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants, which contain cellulose.
How can fungi reproduce without interacting with other fungi? They produce spores, which are usually asexual reproductive organs through which a fungus can produce offspring without interacting with any other fungus. 10. What characteristics distinguish vascular plants from others? Give examples.
Some fungi have beneficial uses. For example, penicillin and yeast for baking. Thrush is a common fungal infection. Parasites are small organisms which depend can only live on a host. Plants, animals, humans, fish, birds and reptiles can all be host to parasites.
Water passes from cell to cell by osmosis. They are only a few cells thick. They do not have true Roots, Leaves, or Stems. | Trypanosome | protista | sarcomastigophora | They are unicellular. they have natural hosts that evolve with them to ensure mutual survival.
Fungi are Eukaryotes when compared to bacteria and fungi. One major difference is that fungal cells have cell walls that contain chitin unlike the cell wall of plants which contain cellulose. The chitin adds rigidity and structured support to the thin cells of the fungus. A parasite is an organism that lives on or inside another organism to the detriment of the host organism. 1.2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites.
Giardia [jee-ahr-dee-uh, jahr-] is a genus [jee-nuhs] which is a low-level taxonomic rank used in the biological classification of living and fossil organisms of anaerobic flagellate [fla-jə-ˌlāt] protozoan in which they are organisms that do not require oxygen for growth with one or more whip-like organelles called flagella in a diverse group of single cell eukaryotic organisms in the super group “Excavata” named for the excavated groove on one side of the cell body. When one eats or drinks contaminated water or food with cysts containing giardia it leads to one that develops a disease known as giardises or Beaver Fever. Giardia’s life cycle alternates between an actively swimming trophozoite and an infective, resistant cyst. There is great biological interest in the organism because of its early evolutionary position. Giardia lacks many of the prominent organelles, such as peroxisomes and mitochondria that are characterisitic of eukaryotic organisms.
Antibiotics have no effect on viruses. Some viruses that may cause viral hepatitis or AIDS evade the immune responses causing chronic infections. A fungus (singular) funguses or fungi (plural). Fungi is a general name given to a large group of organisms that include micro-organisms such as yeast or molds as well as most common thought mushrooms. Most fungi are generally unnoticeable because of the small size.
| | Cells | Cells are the smallest functional unit organism. Cells have many different functions inside of living things. | | Eukaryotic | An Eukaryotic cell is a cell that has a nucleus and all of the organelles in the inside are protected by a cell membrane. | | Prokaryotic | Prokaryotic cells don't have a nucleus. | | Cell Membrane | The Cell Membrane holds everything inside the cell together and protects it from things that could harm it.
TASK 1 (P1) BACTERIA A) Labelled B) Bacteria is a single cell organism. They do not have a nucleus and are prokaryotic cells. Bacteria are simpler structures with no membrane bound organelles. A bacteria has a cell wall, plasma membrane, pilus, DNA, capsule and ribosomes. C) The average size of a bacteria is between the diameter of 0.5 to 5 µm.
Mushroom From Wikipedia, the free encyclopedia Jump to: navigation, search This article is about fungi. For use in food, see edible mushroom. For other uses, see Mushroom (disambiguation). The mushroom Amanita muscaria, commonly known as "fly agaric" A mushroom is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or on its food source. The standard for the name "mushroom" is the cultivated white button mushroom, Agaricus bisporus; hence the word "mushroom" is most often applied to those fungi (Basidiomycota, Agaricomycetes) that have a stem (stipe), a cap (pileus), and gills (lamellae, sing.