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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

Where are paramecium?

Paramecium are typically found in freshwater environments such as ponds, lakes, and slow-moving streams. They are also commonly found in microbiology laboratories where they are studied as model organisms.

Do amoebas like light or do they not like light?

Amoebas do not have eyes or light-detecting organs, so they do not have the capability to perceive or respond to light like organisms with photoreceptors do.

Why is it likely that you will never meet a two-ton amoeba on a sidewalk?

Amoebas are unicellular organisms. The way that life is set up it is far more efficient to have cells be small because of the inefficiencies of a cell being so large. Small is conducive to a large surface to volume ratio, the larger surface you have the more you can exchange (fluids, nutrients,etc.). All life needs water, amoebas would not be able to retain this much water to become two tons in the first place and the energy the cell membrane would have to expend preventing this water from escaping would be tremendous (probably more than an average human's metabolism) and we have BILLIONS of cells, with an amoeba we are talking about only ONE cell.

What is the kingdom of Plasmodium vivax?

Plasmodium vivax is a species of parasite that causes malaria in humans. It belongs to the kingdom Protista, which includes single-celled organisms that do not fit into the other traditional kingdoms of plants, animals, or fungi.

What is the function of amoeba?

Amoebas are single-celled organisms that use pseudopods for movement and feeding. They capture food particles by surrounding them with their pseudopods and forming a food vacuole for digestion. Amoebas play a vital role in their ecosystem by breaking down organic matter and recycling nutrients.

Amoeba in Latin?

The word "amoeba" is Latin in origin, derived from the Greek word "amoibe," meaning "change" or "variation." It refers to a single-celled organism that can change its shape.

What are diatoms enemies?

Ever since the atom joined with another atom to create a diatom, it has been the greatest structure in the universe. However, when the polymer was created, which has not just two atoms, but many thousands of atoms, the diatom has been bitter with jealousy that it is no longer the biggest fish in the pond. Therefore the polymer is the diatoms enemy.

Would there be a higher concentration of dissolved molecules in pond water or in a paramecium cell?

I can guess which sheet you are looking for and it is in the link below...Don't

worry it is safe as I used it myself. The answer to this would be: 'There would be a greater concentration of dissolved molecules inside a cell.' Explanation: 'Water will move into Paramecium by osmosis because the concentration of water molecules is higher outside the Paramecium than inside.'

Once you click on the link you want to press 'show in folder' and then 'open with' microsoft word or adobe reader or whatever you use. Just don't click open with your browser that you are using as that will just download more copies... Hope this helped!!! :)

Sources: https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CEgQFjAC&url=http%3A%2F%2Fintranet.cramlingtonlv.co.uk%2Fscienceweb%2Fc21_additional%2FCD_resources%2FB4%2Fword%2FGAB4_13.doc&ei=eB5cUqW4OcPA0QXs4oHQBA&usg=AFQjCNGg8oeHD1xBKOlc8KXkQzyX1-TuSQ&sig2=ebHZpElWLX6yfYJDvaKhPg&cad=rja

Do protists move independently?

Yes, protists can move independently through the use of structures like flagella, cilia, or pseudopods. These structures allow protists to swim, glide, or crawl in their aquatic or moist environments.

Is phytoplankton a type of algae?

Yes, phytoplankton are a type of microorganisms that include many types of algae. They are microscopic, photosynthetic organisms that drift in water bodies and form the base of the aquatic food chain.

What structures in amoeba and paramecium also occur in plant cells?

Structures such as the Golgi apparatus, mitochondria, and vacuoles that are present in amoeba and paramecium are also found in plant cells. Additionally, both plant cells and these protists contain a cell membrane, cytoplasm, and a nucleus.

Are dinoflagellates larger or smaller than euglena's?

Dinoflagellates are typically larger than Euglena. Dinoflagellates can range in size from 5 to 2,000 micrometers, while Euglena are usually around 50 to 500 micrometers in size.

What does a paramecium caudatum eat?

Paramecium caudatum is a type of protist that feeds on bacteria, algae, and decaying organic matter through a process called phagocytosis. They use their cilia to sweep food particles into their oral groove, where they are engulfed and digested.

How many flagella do dinoflagellates have?

Their two flagella help them move in wet, damp, and moist places. They are two long, whiplike tails.

What is a trichocyst?

A trichocyst is a specialized organelle found in certain ciliate protists that functions in defense. When stimulated, trichocysts discharge long, pointed structures called trichites that can entangle or injure potential predators.

What is the difference between paramecium and elodea cells?

Elodea Is a multicellular celled organism, paramecium is a single organism

Another thing is that Elodea (being multicellular) can not survive on its own

while on the other hand paramecium can

What organisms in kingdom protista are pathogenic?

I'm looking in my textbook and it says that these are harmful pathogenic organisms in Kingdom Protista: Sarcodina: Entamoeba Histolytica Coli, which is often spread through contaminated water. That's why when you go to foreign countries they say, "Don't drink the water!" Entamoeba Histolytica causes severe dysentery, nausea, exhaustion, diahrrea, and sometimes even death! So be careful! Mastigophorites are also pathogenic. A small fly known as the tsetse fly carries mastigophorites that belong to the genus trypanosoma, which causes African Sleeping Sickness, a disease which often leads to death. Balantidium Coli is a species of ciliophorathat is a parasitic pathogen of animals such as rats, pigs, and guinea pigs. The animal eats or drinks a substance contaminated with this and it is transfered to the animal or even the person. The coli feeds off of the animal/human's fecal matter (poop) , resulting in severe dysentery. It is not common in the US, but is very common in tropical regions of the world where malnutritioned people and pigs live in close proximity of one another. Hope this helps you ! Love always, your friend, April R.
Plasmodium, toxoplasma and E. histolytica.

How does an amoeba mate?

An amoeba dosen't technically mate.There is a type of asexual reproduction called binary fission where it duplicates its genetic material then splits to form to identical parts. It's a form of cloning.

Are plasmodium unicellular or multi-cellular?

Plasmodium is a unicellular parasite that causes malaria in humans. It goes through multiple stages of its life cycle in both the mosquito vector and human host, but at its core, it is a single-celled organism.

Can an amoeba become large enough to eat NYC?

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Is an Amoeba alive or dead?

An amoeba is a living organism. It is a single-celled microscopic organism that carries out essential life processes such as feeding, moving, and reproduction.

What are the predators of amoeba?

Predators of amoeba include other microscopic organisms such as ciliates, flagellates, and some types of algae. These predators consume amoebas as a food source, helping to regulate their population in aquatic environments.

How does reproduction occur in amoeba?

Amoeba's reproduce through asexual reproduction. Inside the cell the nucleus will divide through a process called mitosis. Then the cytoplasm and outer membrane divide and pull apart to create a new cell.

How can you tell if a protist is a producer?

Protists that are producers typically contain chloroplasts, allowing them to photosynthesize and produce their own food using sunlight, water, and carbon dioxide. These protists are usually green in color due to the presence of chlorophyll. Additionally, they release oxygen as a byproduct of photosynthesis.

What are characteristics of amoeba?

Amoebas are single-celled organisms with a flexible cell membrane that allows them to change shape. They move by extending and retracting pseudopods, or "false feet." Amoebas are found in various aquatic environments and feed on bacteria and other small organisms.