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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 does the Food Vacuole do in the Amoeba Cell?
The food vacuole is formed by the outer membrane of the amoeba after phagocytosis, digestive enzymes then enter the food vacuole which digest the food that was recently taken in by pseudopods.
What two structures contain DNA in a paramecium?
In a paramecium, the DNA is contained within the nucleus, which serves as the main storage site for genetic information. Additionally, paramecia also have DNA within their micronucleus, which is involved in sexual reproduction and genetic exchange.
Do volvoxs have cilia or a flagella?
These are a type of green algae. They are similar to other plants and they have a nuclear membrane around their nucleus.
No, amoebas cannot make their own food through photosynthesis like plants can. Instead, they obtain nutrients by engulfing and absorbing small particles and organic matter from their environment through a process called phagocytosis.
Protozoan diseases causes in plants?
Protozoan diseases in plants are relatively rare. One example is Plasmodiophora brassicae, which causes clubroot disease in cruciferous vegetables like cabbage and broccoli. Another example is Phytophthora infestans, a water mold that causes late blight in potatoes and tomatoes.
Can you constipation because of amoeba?
Yes, amoebic infections can cause symptoms such as diarrhea, but constipation is less common. In some cases, severe inflammation or damage to the intestines caused by amoebas may lead to constipation as a secondary symptom. It's important to consult a healthcare provider for proper diagnosis and treatment.
How osmoregulation is carried out in a named protozoan?
Osmoregulation in protozoans like Paramecium is carried out through contractile vacuoles. These organelles collect excess water and expel it from the cell to maintain osmotic balance. The contractile vacuoles help prevent the cell from bursting due to excessive water intake.
What happens as a result of insertion?
Insertion in the context of database systems refers to adding new records or data into a table. When insertion occurs, a new row is created in the table with the specified data values. This process helps to expand the dataset and allows for the storage of additional information for future retrieval and processing.
How amoeba locomote by sol-gel theory?
hi friends this may help you,
Sol - gel theory is proposed by hyman . It helps some protozoans to move. it is basically consists of some steps which are as follows:-
1) The cytoplasm inside the cell is capable of changing into different forms i.e. from fluid to solid and vice versa. When the cytoplasm is in fluid state, it is known as plasma sol, and the more solid or gel like state is called the plasma-gel.
2)The interchange of plasma sol to plasmagel is known as Sol-Gel theory and is responsible for amoeba movement.
3) When the cytoplasm is in solid or gel like state, there is no locomotion. Movement takes place only when the cytoplasm is in fluid state. This way the amoeba "drags" itself and this movement is known as amoebic movement.
4)The locomotion in the amoeba is effected by the formation of temporary finger-like processes of pseudopodia (false-feet, greek, pseudos, false + podos, foot).
5)The plasma-sol changes into rigid plasmagel (gelates) at the anterior end and at the posterior end the plasma-gel changes into plasmasol (solates) causing a forward streaming of the more fluid plasma-sol.
6)That is why in actively progressing specimens the plasma-sol is continuously rapidly streaming forward, while the plasma-gel is practically everywhere at rest forming, so to say, a tube within which the plasma-sol flows.
7)It the course or a granule or crystal fairly straight course either until it reaches or nearly reaches the inner surface of the plasma-gel at the tip of an advancing pseudopod, then it deflects to the right or to the left, upward or downward and sooner or late, directly or indirectly comes into contact with plasma-gel into which it finally changes.
8)Other granules are similarly coming and changing it to plasma-gel after attaching to it behind the crystal under observation. As more of these are coming in the same way the position of the first recedes from the anterior and approaches the posterior end of the amoeba. When it reaches this end it gradually moves inward and enters in the plasma-sol, after which it moves forward and the whole processes is again repeated.
9)This gives an idea about the movement of the plasmasol and plasmagel. From this, the phenomenon of locomotion can be easily deducted.
****************************KEVIN (Jr M.P.L) KAKINADA A.P*************************
Yes, some species of amoebas, such as the Naegleria fowleri, can be pathogenic to humans and cause infections such as amoebic meningoencephalitis, a rare but usually fatal infection that affects the brain. These amoebas are usually found in warm freshwater bodies like rivers and lakes.
What is the habitat of a paramecium is?
Paramecium are free-living organisms found in various aquatic environments such as ponds, lakes, and slow-moving streams. They prefer habitats with plenty of organic matter for food, along with proper water salinity and pH levels. These single-celled organisms thrive in freshwater environments with an abundance of bacteria and algae for them to consume.
What is the common name of Cryptosporidium parvum?
The common name of Cryptosporidium parvum is simply cryptosporidium.
Yes, Pandorina is a multicellular green algae. It is composed of a colony of individual cells that work together in a coordinated manner. Each cell in the colony performs a specific function to ensure the survival and reproduction of the organism.
How would the movement of a live Paramecium compare to that of a live Amoeba?
paramecium use motile cells/hairs called cillia to swim as it were.ameboea use a form of locomotion.that is it heaves part of it self forward and pulls it self along.on amicroscopic scale this system of motion works in liquids.
What are locomotary organs in euglena?
In Euglena, the locomotary organ is the flagellum. The flagellum is a whip-like structure that helps the organism move by beating in a wave-like motion. It also helps in the detection of light and movement towards light sources.
What does a food vacuole in a paramecium do?
A food vacuole in a paramecium is a small space within the cell where food particles are engulfed and digested. It helps the paramecium to obtain nutrients from its environment and store them for energy production. Once the digestion is complete, the remaining waste is expelled from the cell.
What can you use to stain an amoeba?
You can use a basic stain such as methylene blue to make the amoeba more visible under a microscope. The stain will bind to specific parts of the amoeba, making its structures easier to observe. It is important to follow proper staining procedures to avoid damaging the organism.
How does amoeba display 1 way of sensing and responding to change?
Amoeba detects changes in its environment using chemotaxis, where it moves toward chemical attractants (such as food) and away from chemical repellents. In response to a change in the concentration gradient of a chemical signal, amoeba alters its direction of movement by extending pseudopods in the desired direction.
Can amoeba be found in a pond?
Yes, amoebas can be found in ponds as they are common in freshwater environments. Amoebas feed on bacteria, algae, and other microorganisms present in the water.
No, a paramecium is not a moneran. Paramecium is a protist, specifically a type of ciliate. Monerans are a group of organisms that include bacteria, which are prokaryotes.
Is trichomoniasis curable and can it reoccur?
Trichomoniasis is a curable sexually transmitted infection (STI) that is typically treated with antibiotics. With appropriate treatment, most cases of trichomoniasis can be cured. However, reinfection is possible if exposed to the parasite again through unprotected sexual contact. It is important to practice safe sex and notify sexual partners if diagnosed with trichomoniasis to prevent reoccurrence.
No, amoebas are not metazoans. Metazoans refer to multicellular organisms with differentiated tissues and organs, while amoebas are single-celled protists that lack these specialized structures.
Differentiate between protozoa and parazoa?
Protozoa are unicellular organisms with animal-like characteristics, such as the ability to move and ingest food. Parazoa, on the other hand, are multicellular organisms that lack true tissues and organs. They include sponges, which are filter-feeding animals without distinct symmetry.
Amoebas do not have specific enemies in the traditional sense. They are single-celled organisms that can face threats from predators like certain types of protists or other microscopic organisms. Additionally, environmental factors such as changes in temperature, pH levels, or pollution can also impact amoebas' survival.
