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Protists
Protists are unicellular or multicellular microorganisms. The majority of protists are responsible for many diseases in humans.
1,262 Questions
Because the surrounding freshwater concentration is higher than the salt concentration inside and so all the water from the vacuoles has left because of osomosis. while the marine amoeba has the surrounding salt concentration equal to the concentration inside the vacuole.
Salmonella is not a protist; it is a type of bacteria belonging to the family Enterobacteriaceae. Protists are eukaryotic organisms that are not classified as plants, animals, or fungi. Salmonella is a Gram-negative, rod-shaped bacterium that can cause foodborne illnesses in humans and animals. It is important to differentiate between bacteria like Salmonella and protists for accurate classification and understanding of their characteristics and impact on health.
Process that amoebas use to take in food and other materials?
Amoebas use phagocytosis to take in food and other materials. During phagocytosis, the amoeba extends its cell membrane around the particle and engulfs it, forming a food vacuole. The food is then digested inside the vacuole.
Economic importance of paramecium?
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An amoeba is a unicellular, genderless organism that belongs to the Protista kingdom & can reproduce through asexual reproduction.
Amoeba are the unicellular, microscopic organism which moves by the help of pseudopodia (false foot)
An amoeba cell eats other unicellular organisms like paramecium, bacteria, and plant cells. Some are even parasitic! Amoeba cells eat by moving its cytoplasm (also called pseudopods) around its prey. The prey is literally inside the amoeba now. The Amoeba forms a vacuole around it and breaks it down for nourishment and absorbs it through its cytoplasm.
What is the difference between Amoeba and Paramecium?
paramecium- move with cilia
amoeba- move by creeping along with their pseudopod's
also, paramecium are larger.
Most of the Amoebae live in various marine environments. They are amorphous in shape and move by means of extruding pseudopodia extensions. Have you ever watched a movie called, "The Blob?" The title character in that movie is based on the concept of a giant amoeba devouring anything and everything in its path. Actual amoebae are somewhat like that but on a microscopic scale, mostly grazing on bacteria and microscopic detritus.
When the environment is not conducive to survival, i.e. the water hole dries up, they can encyst and survive quite nicely until conditions improve.
Most Amoebae cause no harm to humans, but here are a few that can be nasty:
Entamoeba histolytica famously causes amoebic dystentery when ingested, usually from untreated drinking water. This disease is also known as 'Moctezuma's Revenge' (often Anglicized to 'Montezuma's Revenge') amongst unlucky tourists in Mexico.
Naegleria fowleri (AKA the 'Brain-Eating Amoeba") can be fatal to swimmers if taken in via the nose.
Acanthamoeba sp. and Balamuthia mandrillaris can both cause encephalitis in humans.
You can find them in earth (soil) and or enything that is salt or fresh water.
Mud puddles, sitting water. You can grow your own by taking a jar or cup and put water in it, add a bit of dirt, and let it sit for a week. You will have amoeba.
What are 5 variations of the protist organism?
The 5 variations of the protist organism are excavata, chromalveolates, rhizaria, archaeplastida, and unikonts.
How do you seal pictures on a wood structure outside?
With varnish or laquer-
== == Good answer. I would also suggest an UV Inhibitor in the afore mention. Also if it is for a short time, plastic laminate over the picture. (A long time will turn the plastic a milky white).
Which algae is used in space flights to purify the air in spaceships?
None are, currently. To use the International Space Station as an example, CO2 is removed by a zeolite filter and other waste gases are absorbed by activated charcoal.
Explane how you would prepare a drop of water containing an amoeba for viewing under a microscope?
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No, an amoeba does not have a heart. Amoebas are single-celled organisms that do not possess a circulatory system like more complex organisms. They rely on diffusion to transport nutrients and gases within their cell membrane.
Paramecium can take in food only at the cytostome. The cilia in the oral groove create a current of water which wafts the food organisms up to the cytostome where they are ingested in a food vacuole. This food vacuole then follows a specific route through the cytoplasm. On its travels, enzymes are secreted into the vacuole and the food is digested. The digested substances are then absorbed into the cytoplasm.
Paramecium reproduce by binary fission.
Can algae grow in distilled water?
yes it can if the distilled water is left un covered and not kept sterle as it is made to not have any minerals in it and is not growth proof
First lets look at what a protist is:
Protist: Any eukaryote that is not a plant, animal, or a fungus. A majority of protists are unicellular, but some are multicellular or colonial.
Protists have been split into five supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida, and Unikonta. Within most of these groups are organisms that can harm/benefit humans/other organisms.
SOME examples of what they can do:
- In the Excavata supergroup, an organism known as Trypanosoma causes the "sleeping sickness" disease.
-In the Chromalveolata group, some dinoflagelates cause "red tide" which can sometimes be toxic/harmful to fish.
- Also in the Chromalveolata group, a derivative of brown algae (algin) has been used as a toothpaste additive and has been used in some salad dressings
- Red algae (Archaeplastide group) has been used in the production of "nori" for Japanese sushi. Dulse, a type of red algae, is harvested off the shores of Grand Manan Island (Bay of Fundy, NB) and sold as a snack food or salty seasoning
When an amoeba engulfs a particle of food what is formed?
Two pseudopodia are extended with microtubular action and surround the food particle. Instead of reeling the particle in the amoeba pulls itself up to the particle and then it is ingested through the cellular membrane.
What is exchanged when two paramecium conjugate?
They exchange genetic material using their micronuclei.
How are monerans and protests different?
Monerans are single-celled microorganisms belonging to the domain Bacteria, while protests are social movements or expressions of disapproval or objection typically against a specific issue or policy. Monerans are related to bacteria and archaea, while protests are a form of collective action by people to bring about change or raise awareness.
What is amoeba mode of transmission?
Amoebiasis is usually transmitted by the fecal-oral route. Ameobas are also transferred indirectly through contact with dirty hands, and is spread through ingestion.
Which parts of an amoeba have similar parts to the feet of bears?
An amoeba does not have specialized structures like feet. However, it moves by extending parts of its cell membrane called pseudopods, which can be likened to the bear's feet in terms of aiding in movement. Both help in mobility, but their structures and functions differ significantly due to the different biological makeup of amoebas and bears.
Is cyst formation in amoeba and paramecium for protection?
Yes, cyst formation in amoeba and paramecium is a protective mechanism. It helps them survive unfavorable conditions such as lack of food, extreme temperatures, or chemical changes in their environment by allowing them to become dormant until conditions improve.
