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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

Which is the breathing organ for paramecium?

Paramecium exchanges gases with its surroundings through a specialized structure called the contractile vacuole, which helps regulate water content and expel excess water from the cell. This process allows for the exchange of oxygen and carbon dioxide without the need for a specific breathing organ like those found in animals.

What process does an amoeba use to drink?

Amoeba obtains its nutrition in a heterotrophic mode. Both the anabolic and catabolic functions are carried out in the same cell. Amoeba feeds on plankton and diatoms present in water. It can form arm- like structures called pseudopodia, extending from any part of its body as it is shapeless. When it senses food in its surroundings it extends its pseudopodia in that direction and moves towards it. then it engulfs the food with its pseudopodia. When the food enters its body the amoeba forms a food vacuole around it which contains certain enzymes to digest the food. When the food is digested the unwanted waste is released through its body surface.

Can black mold exposure be misdiagnosed as trichomonas?

Trichomoniasis is a protozoan, and black mold a fungus. Trich is typically diagnosed by visualizing the distinctive animal that causes it, or via antigen testing. Black mold exposure would not be misdiagnosed as trichomoniasis.

Is an amoeba atrotroph?

No, amoebas are not autotrophs. They are heterotrophic organisms, meaning they obtain nutrients by ingesting other organisms or organic material. Amoebas typically feed on bacteria, algae, and other small particles by engulfing them through a process called phagocytosis.

What is the name of paramecium reproduction?

Paramecium reproduces asexually through binary fission, where the cell divides into two identical daughter cells. They can also undergo conjugation, a form of sexual reproduction, where genetic material is exchanged between two individual cells.

What marsupial is known for its incredible speed and jumping power?

Well it is well known as a kangaroo . Kangaroos has the speed and the jumping not like a frog . The only thing that was known was that its baby is call a joey ! Guys think . Oh , and plus , its a marsupial !

Example : Kangaroos lives in Australia . Woah !

That's what is says in my old 7th grade worksheet .. Odd

How does a plasmodium vivax eat?

A parasitic life form basically consumes food from the host. Here, unlike in symbiosis where both lifeforms are benefited only the parasitic creature is benefited. These form of life consume food just like any other creature but the only major difference (as stated above) is that it gets this food from the animal it hosts upon.

Why do no two amoebas look alike?

Amoebas are single-celled organisms that can vary in shape, size, and movement due to genetic differences and environmental factors. Each amoeba may have unique characteristics like pseudopods (temporary extensions of the cell) that can contribute to their individual appearance. Their ability to adapt to different environments also plays a role in their diversity.

Does a paramecium have legs?

No, a paramecium does not have legs. Instead, it moves using hair-like structures called cilia that cover its outer surface. These cilia beat in a coordinated manner to propel the paramecium through its environment.

Are euglena aerobic or anerorbic?

Euglena is primarily aerobic, meaning it obtains energy through aerobic respiration in the presence of oxygen. However, euglena can also switch to anaerobic respiration in the absence of oxygen to generate energy.

Why entamoeba is known as entamoeba histolytica?

Entamoeba is known as Entamoeba histolytica because it is a species of amoeba that is capable of invading and destroying tissues within the host's body, a process known as histolysis. This invasive characteristic sets it apart from other species of Entamoeba.

Why is a contractile vacuole essential to the survival of the amoebae and the paramecium?

A contractile vacuole helps amoebae and paramecium regulate the water content within their cells by periodically expelling excess water to prevent them from bursting due to osmotic pressure. Without a contractile vacuole, these organisms would be vulnerable to cellular damage from fluctuations in hydration levels and could potentially die from osmotic stress.

What do protists and the amoeba move by?

Flagella

Both are motile and have flagella that help them move around.

What is the function in the waterlily fish and paramecium cells?

In waterlily cells, the function of the vacuole is to store nutrients, water, and waste products. In fish cells, the function of the mitochondria is to produce energy in the form of ATP through cellular respiration. In paramecium cells, the function of the contractile vacuole is to regulate water content by pumping out excess water to maintain internal osmotic balance.

What are the two possible develoment stages of protozoans in which stage are the mojority of protozoan infections transmitted from host to host. Give 3 specific examples?

The two development stages are Trypanosoma brucei and Trypanosoma cruzi. Trypanosoma brucei, they lived ib the blood stream. it's transmitted by an insect vector. It is mostly associated in Africa. The transmition vector is tsetsefly and it is caused by sleeping sickness. It bites and jnject.

Trypanosoma cruzi also lives in the blood stream. It is an insector vector. It is associated in America. The insect that transmit is reduvid bug or kissing bettle. It causes sleeping sickness.

Why doesn't amoeba fit into the animal kingdom?

Amoeba is classified under the kingdom Protista because it exhibits characteristics of both plants and animals. Amoebas are unicellular organisms with a flexible cell membrane that allows them to move and engulf their food like animals, but they lack specialized tissues and organs found in true animals. This unique combination of features places them in a separate kingdom apart from animals.

Is a volvox cell a pathogen?

Volvox are not harmful to the environment because they play a big part in our everyday lives... however if you ate the volvox it would probably make you sick.

Where are the paramecium found in a human body?

Paramecium, like all protists, are single-celled organisms. Cells are the building blocks for all life forms. "Single-celled" means

that a paramecium has only one cell for its entire body. Most plants and animals have more cells than you can count.

Why is it important for euglenas to move toward sunlight?

Euglenas are able to perform photosynthesis to produce their own food using sunlight. Moving toward sunlight allows them to maximize the amount of light available for photosynthesis, which is essential for their survival and growth.

Do parameciums have chloroplast?

No, parameciums do not have chloroplasts. They are single-celled organisms belonging to the group of protists, and they are not capable of photosynthesis. Instead, parameciums obtain their energy by feeding on bacteria and other small organisms.

Can antibiotics kill the protozoa toxoplasma gandii?

Although Toxoplasma is a protozoa, and has eucariotic cell -> some antibiotics (macrolides) can act on it by blocking expression of apicoplast genes (circular DNA), interfering with 50S ribosomal subunit [procariotic ribosome responsible for expression of apicoplast genes]

What part does the amoeba have in a food chain?

Amoebas are typically found at the bottom of the food chain as primary consumers. They feed on microscopic organisms like bacteria and algae, playing a vital role in breaking down organic matter and recycling nutrients in ecosystems. Larger organisms then consume amoebas as a food source, continuing the transfer of energy up the food chain.