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Protozoa
Protozoans are unicellular organisms found in many different habitats. They are eukaryotic and can be predators, herbivores or parasites, depending upon the species. The well-known disease malaria is caused by a protozoa.
1,445 Questions
What structure do euglena have that is sensetive to light?
Euglena use an eyespot to detect light. An eyespot is a dark spot on their body. They cannot see the world around them but they can see light. The eyespot is located anywhere on their body but usually near their flagella. A flagella is a whip-like strand that euglena and other organisms use to move through the water. Euglena are producers and they make food through photosynthesis so they need the light.
Why amoeba has irregular shape?
Amoebas have an irregular shape because they lack a fixed cell wall or structure. Their flexible cell membrane allows them to constantly change their shape as they move and engulf food. This shape-shifting ability helps them adapt to different environments and capture prey efficiently.
What are the advantages and disadvantages of protozoa?
Protozoa play important roles in the fertility of soils. By grazing on soil bacteria, they regulate bacterial populations and maintain them in a state of physiological youth-i.e., in the active growing phase. This enhances the rates at which bacteria decompose dead organic matter. Protozoa also excrete nitrogen and phosphorus, in the form of ammonium and orthophosphate, as products of their metabolism, and studies have shown that the presence of protozoa in soils enhances plant growth.
Protozoa play important roles in wastewater treatmentprocesses, in both activated sludge and slow percolating filter plants. In both processes, after solid wastes are removed from the sewage, the remaining liquid is mixed with the final sludge product, aerated, and oxidized by aerobic microorganisms to consume the organic wastes suspended in the fluid. In the former process, aerobic ciliates consume aerobic bacteria, which have flocculated; in the latter process, substrates are steeped in microorganisms, such as fungi, algae, and bacteria, which provide food for oxidizing protozoa. In the final stages of both processes, solids settle out of the cleaned effluent in the settlement tank. Treatment plants with no ciliates and only small numbers of amoebas and flagellates produce turbid effluents containing high levels of bacteria and suspended solids. Good-quality, clean effluents are produced in the presence of large ciliated protozoan communities because they graze voraciously on dispersed bacteria and because they have the ability to flocculate suspended particulate matter and bacteria.
Protozoa probably play a similar role in polluted natural ecosystems. Indeed, there is evidence that, by feeding on oil-degrading bacteria, they increase bacterial growth in much the same way they enhance rates of decomposition in soils, thereby speeding up the breakdown of oil spillages.
What is the breathing organ of Amoeba?
Amoeba does not have specific breathing organs like lungs or gills. Instead, it relies on simple diffusion of gases through its cell membrane to exchange oxygen and carbon dioxide with its environment.
Protozoa absorb water through their body surface by a process called osmosis. Water molecules move from an area of higher concentration to an area of lower concentration, helping the protozoa maintain their internal water balance.
Euglena swim towards light using a light-detecting eyespot located near their flagellum. This process, known as phototaxis, allows Euglena to move towards light sources for photosynthesis and energy production.
Why is Volvox unique in the protist category?
Volvox is unique in the protist category because it forms spherical colonies that can contain hundreds or thousands of individual cells working together as a multicellular organism. This colonial structure is rare among protists that are typically unicellular. Additionally, Volvox exhibits a level of cellular differentiation and division of labor not commonly seen in other protists.
If a woman has trichomoniasis how can she tell who she got it from?
It is difficult to pinpoint the exact source of trichomoniasis as the infection can be asymptomatic in both men and women. Therefore, determining the source of the infection based on symptoms or timing is usually not possible. The best course of action is for both partners to get tested and treated to prevent further spread of the infection.
Can a protozoan photosynthesize. name one protozoan that can photosynthesize?
Yes, some protozoans can photosynthesize through a process called phagotrophy, where they engulf and digest algae or other microorganisms. One example of a photosynthetic protozoan is Euglena, which contains chlorophyll and can produce its own food through photosynthesis.
No, an amoeba is not a fungus. Amoebas are unicellular organisms that belong to the group of protozoa. Fungi are a separate kingdom of organisms that include organisms such as mushrooms, yeasts, and molds.
How can an Amoeba pic be giant?
An Amoeba pic can be made to appear giant through the use of creative editing techniques such as zooming in, cropping, or manipulating the perspective. This creates the illusion that the Amoeba is much larger than its actual size.
What is the difference between volvox and other protozoa?
Volvox may be considered to be both unicellular and multicellular. It resembles the one-celled organism "Chlamydomonas." Volvox also has characteristics from those of a colony because most of the cells are similiar. It also has specialized reproductive cells and the two ends of the colony are different.
What do you need to see an amoeba?
Some amoebas such as the Pelomyxa palustris are large enough to be seen with the naked eye. Most amoebas would need to be seen under a microscope with at least 400x magnification. Filters are used as white light makes the amoebas curl into a ball and become unrecognisable.
Yes, amoebas are classified as animals. They belong to the kingdom Protista within the domain Eukaryota. Amoebas are unicellular organisms with flexible cell membranes that allow them to change their shape.
What is the incubation period for trichomoniasis?
Typically, trichomonas is treated with a single two gram dose of metronidazole. After that, you may be contagious for a week until the cure is complete.
It will take up to 2 weeks to be cured from Trich after treatment.
Trichomoniasis can be cured with prescription drugs given by mouth in a single dose. The symptoms of trichomoniasis in infected men may disappear within a few weeks without treatment. However, an infected man, can continue to infect or re-infect a female partner until he has been treated. Therefore, both partners should be treated at the same time to eliminate the parasite. Sources:- GenericLanoxin(dot)com
You need to go to a doctor, nurse practitioner, or physicians' assistant and get medication. Many people go to the public health department. You will have a swab taken from your genitals for examination; you find out right away if you are infected. Get your partner tested, and throw out your sex toys (there is no good way to get all the germs off of sex toys to the best of my knowledge).
Metronidazole can be given in one 2 gram dose or 500mg twice a day for one week. Sometimes this needs to be repeated. you should feel better after the medication in a few days. Go back to the doctor if you are not sure you are all better.
Normally, it takes trichomoniasis seven days to go away after single-dose treatment. Patients should abstain from sex, even with a condom, until treatment is complete. If you still have symptoms a week after single-dose treatment, abstain from sex and see your health care provider for repeat testing, as antibiotic resistance is increasingly common.
About 2 weeks to completely kill the protozoa.
Using a high magnification objective lens without properly adjusting the focus first would not be an appropriate procedure for observing a living paramecium under a compound light microscope. This could result in damaging the paramecium or causing it to move out of view before being able to observe it accurately.
Chlamydomonas is more like a plant cell than an animal why?
Chlamydomonas is more like a plant cell than an animal cell because it contains chloroplasts for photosynthesis, a cell wall made of cellulose, and a large central vacuole for storing water and waste. These features are characteristic of plant cells and are not typically found in animal cells.
What structure do paramecium use for protection?
PARAMECIUM have a pellicle with alveoli that helps to provide stiffness, aswell as trichocysts that can be discharged for protection. PARAMECIUM have a pellicle with alveoli that helps to provide stiffness, aswell as trichocysts that can be discharged for protection.
What is a euglena environment?
Euglenas are microscopic single-celled organisms that thrive in freshwater environments like ponds, lakes, and slow-moving streams. They require sunlight to perform photosynthesis and are often found in areas with abundant organic matter for nourishment. Their habitats can vary in terms of temperature, pH levels, and nutrient availability.
Is plasmodium falciparum aerobic or anaerobic?
It is an obligate microaerophile. Meaning it lives best in small amounts of oxygen.
Describe the structures of Chlamydomonas and Volvox and contrast how they reproduce?
Chlamydomonas are single-celled organism with 2 apical flagella which are absorbed before cell division. Volvox are multicellular organisms that have 2 cell types. They are composed of about 2000 somatic cells that resemble Chlamydomonas and form a spherical shell that also moves the organism using the flagella. Inside the shell resides gonidia which can divide to form a new organism. Also, the somatic cells that resemble Chlamydomonas can not divide like Chlamydomonas, thus the importance of the gonidia.
