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. Fungi lack the chlorophyll necessary for photosynthesis and must therefore live as parasites or saprophytes Parasites: plant or animal that at some stage of its existence obtains its nourishment from another living organism called the host. Parasites may or may not harm the host, but they never benefit it. They include members of many plant and animal groups, and nearly all living things are at some time hosts to parasitic forms. Many bacteria are parasitic on external and internal body surfaces; some of these invade the inner tissues and cause disease.
They have no internal membranes, no nuclear membrane, no endoplasmic reticulum, no mitochondria and no Golgi body. They do however have a cell wall but it is not made of cellulose. Protoctists are mostly small eukaryotic organisms, with membrane bound organelles and a nucleus, with a nuclear membrane. In this kingdom organisms such as algae, water moulds, slime moulds and protozoa are found. Fungi are also eukaryotic.
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.
7. Archaega does not have cell wall but they do compose of peptidoglycan molecules with the exception of methanobacteria who have pseudo peptidoglycan in their cell wall. 8. There are three main types of archaea: the crenarchaeota which are characterized by their ability to tolerate extremes in temperature and acidity. The euryarchaeota which include methane-producers and salt-lovers; and the korarchaeota catch-all group for archaeans about which very little is known.
They also require waste substances and gasses such as Carbon Dioxide to move out of them. Many small animals can often manage to meet this demand, however larger animals often need a transport system with a pump to ensure they meet the demand. This is all because of their difference in surface area to volume ratio as surface area plays a vital role in the transfer of substances. The main principle of this movement of substances is diffusion. Diffusion is where particles move from where they are in an area of high concentration to where they are in an area of low concentration.
For the second plate, +pGLO (LB/amp/ara), there were even fewer colonies observed, unlike any of the other groups as well, and it did glow under UV light. For the third plate, -pGLO (LB/amp), there was no growth at all, much like every other groups. Finally, the fourth plate –pGLO (LB), displayed a lawn of growth, much like other groups plates as well, and did not glow under UV light. 2. The first plate had two colonies both larger spots that were across the plate from each other growing on the sides or ledges of the plate.
Fungi Unlike bacteria and viruses, fungi are simple plant-like organisms which reproduce using spores. There are three types of fungal infections; ones which occur on the surface of the skin and hair; those which occur in the epidermis (such as ringworm and athlete's foot) and those which affect the deeper layers of skin – the dermis, subcutaneous tissue, muscle and fascia. Fungi may reach these layers as a result of penetrating wounds, or may be inhaled. Parasites Parasites differ from bacteria in that they need a living host to survive and reproduce, although not all parasites affect the host. Parasites can be acquired through contact with a contaminated surface, via infected water or food and through contact with contaminated bodily fluids such as blood, faecal matter and sexual contact.
| | | A) | endoplastic reticulum | | | B) | microtubules | | | C) | cytoplasm | | | D) | mitochondria | | | | | | Feedback: The cell's chemical processes take place in a semifluid material called the cytoplasm. This material provides an ideal environment for organelles because of its fluidity. | | 7 CORRECT | | This shows an example of endoplasmic reticulum. What is the significance of its structure? | | | A) | provides a location for DNA production | | | B) | helps decrease surface area | | | C) | allows selective permeability of cell membrane | | | D) | facilitates breakdown of chemical bonds | | | | | | Feedback: The pleats and folds of the endoplasmic reticulum provides a large surface area where cellular functions, such as breaking chemical bonds, can take place.
The cell wall protects the cell's plasma membrane. Outside the cell wall there is just a thin layer of pectin, wax and cutin to provide some padding, called the middle lamella. In some plants a secondary cell wall forms in the plants adult stages as an extra protection - this wall again is mostly made up of cellulose. Starch can be found in two forms. One is amylose an unbranched polysaccharide with 1-4 glycosidic bonds.
Sometimes even grow on branches and rocks. Geographical Region: Despite its name “Mountain” Fork-moss, this plant grows on lowlands and does not appear on mountains. http://www.bbsfieldguide.org.uk/content/dicranum-montanum Gymnosperm Common Name: Balsam Fir (Conifer) Scientific Name: Abies balsamea Description: Considered