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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 is the shape of a volvox?

Volvox is a green algae the forms colonies of up to 50,00 individual organisms. Each volvox has a nucleus, chloroplasts, a contractile vacuole, an eyespot, and a pair of flagella. The large, spherical colony usually contains daughter colonies that, once fully formed, will exit the parental colony.

Where can you find euglena?

Euglena are commonly found in nutrient-rich freshwater, with a few marine species.

What does the term protozoa mean and Why?

The term protozoa refers to a diverse group of microscopic single-celled organisms that live in water, soil, and the bodies of plants and animals. The name protozoa means "first animals," reflecting their status as some of the earliest and simplest forms of animal life on Earth. These organisms play important roles in various ecosystems as predators, parasites, and decomposers.

What is the best description of nutrition in protozoan groups?

Protozoans obtain nutrition through various methods like phagocytosis, ingestive feeding, and absorption. They primarily feed on bacteria, algae, and smaller protists. Some protozoans are autotrophic, capable of photosynthesis.

Why do i see accidents and Dead bodies?

It could be due to experiencing trauma, stress, or anxiety, which can lead to intrusive thoughts. It's important to take care of your mental health and seek support from a therapist or counselor to address these distressing experiences. Practicing mindfulness and relaxation techniques may also help manage these thoughts.

Where do the protozoans live?

Protozoans are nothing but microorganisms that are unicellular (having only one cell) such as amoeba. Protozoa exist throughout aqueous environments and soil, occupying a range of trophic levels. As predators, they prey upon unicellular or filamentous algae, bacteria, and microfungi.

What are protozoans?

Protozoans are unicellular, single celled micro organisms. Usually by themselves, but they sometimes form colonies. These organism get their food from their surroundings, and tend to live in a marine environment or fresh water. The official definition of the word protozoans is "a single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an ameba, flagellate, ciliate, or sporozoan."

What kingdom does a paramecium belong in?

Paramecium belongs to the protista kingdom, due to the fact that it is a protist...

What is the importance of Protozoans in clinical and veterinary?

Wow, is that a big question and expanding field with so many Irritable Bowel Syndrome and Chrohn's disease cases these days. Protozoal parasites are passed through water, food, and fecal contamination (which includes our hands if we don't wash them often). Symptoms of protozoa l infections include: mucoid or bloody diarrhea, colitis, severe diarrhea with fever, enlarged livers, liver abscesses and abdominal pain among lots of other gut symptoms. Diagnosis is kind of tricky and often the doctor won't take a simple fecal sample and check it under the microscope (and the feces has to be really fresh). The outbreaks can come in waves so that the parasite does not show up upon exam even when they do take a sample. Giardia is often missed for intestinal discomfort cases and often the medications used for protozoal parasites are not that effective and act to further disrupt the gut flora. Then you have a big mess. Homeopathic drops, balancing the gut flora, and getting to the source of the infection (like submitting a water sample for testing) are the best ways to treat these kind of cases.

How do amoebas grow?

Amoeba is a protozoan animal that is unicellular microscopic and found in fresh and marine water. It is also a endoparasite. In amoeba only asexual reproduction takes place and is of three types. 1 Binary fission: takes place in favourable conditions( when enough food and adequate temprature is avialable) just like mitosis completed in half an hour. During binarry fission amoeba stops feeding pseudopodia contract, but not dissapear. Contractile vacoule goes to one daughter cell and in second new c.v. is formed. Cytoplasm content of daugher amoeba just after division is near about equal to parent amoeba. 2 By sporulation: not found in amoeba proteus but found in other species of amoeb. Takes place in unfavourable conditions. The cell form 500-600 chromatin granules which undergo sporulation in favourable conditions and 250-300 spores are relased which become amoeba. 3 By encystment:takes place under unfavourable conditions, about 500-600 amoeba are formed. RESPIRATION: amoeba is aerobic. Respiration system is absent. Respiration takes place by diffusion through general body surface. NUTRITION: It is holozoic, ingest food by phagocytosis Digestion is intracellular, takes place in food vacoule. Digestive enzyme released from lysosome. Trypsin and amylase are also found. EXCERETION: amoeba is ammonotelic but dicarbonyl urea crystals are also found. Exceretion takes place through general body surface.

What is the most prevalent protozoan disease?

Malaria is the most prevalent protozoan disease, caused by Plasmodium parasites and transmitted through the bite of infected Anopheles mosquitoes. It is a major global health concern, particularly in tropical and subtropical regions.

How do amoebas react to heat and cold?

I know that if it gets too cold or too hot the amoeba will try to make away from it. If they do not move fast enough they will die because it is too cold or hot.

I'm only in grade 8 so my answer is not that sophisticated.

How do amoebas compete for food space to survive?

Amoebas compete for food and space by extending their pseudopods to engulf and absorb nearby nutrients. They can also secrete enzymes to break down food sources and outcompete other microorganisms. Additionally, some amoebas are capable of forming cysts to wait for more favorable conditions to emerge and continue their growth.

How do Amoeba react to danger?

Animals like plankton feeders (mussels and water fleas) eat amoeba. secrete certain chemicals and ward off their enemies. They also use their pseudopods to avoid predators. eg. a type of amoeba releases microcysts and macrocysts to defend itself.

What is the physical description of the green algae Chlamydomonas Reinhardtii?

Chlamydomonas reinhardtii is a unicellular green alga that is typically around 10 micrometers in size. It has a single cup-shaped chloroplast and two anterior flagella used for movement. Its cell body is pear-shaped, and it reproduces asexually through cell division.

What is Trichomonas tenax?

has only a tropic stage
oblong cell 5um to 16um long 2-15um wide
4 anterior free flagella, fifth curving around cell
Costa distinguishing structure
Lives only in the mouth cannot survive passage through GI track transmission through kissing/eating utensils
harmless commensals found almost exclusively in mouth decaying teeth crypts of tonsils possibly lungs as well
one extreme case of gland infection by parasite reported .

What chemical compound is the greatest percentage of protozoan is it nucleic acid or glucose or fatty acid or water?

Nucleic acids are the chemical compounds that make up the majority of protozoan cells. They are essential for genetic information storage and expression.

What is a unicellar organism?

A unicellular organism is an organism that consists of a single cell, such as bacteria, archaea, and some types of algae and protozoa. These organisms carry out all necessary life functions within a single cell, including reproduction, growth, and responding to stimuli.

If a woman has bv and has not been with multiple partners and has been with only one man could the reason be because her partner had multiple partners?

Yes, it's possible for a woman to develop bacterial vaginosis (BV) even if she hasn't been with multiple partners. The imbalance in vaginal bacteria that leads to BV can occur due to a variety of factors, including changes in the balance of bacteria in the vagina from various sources, such as new partners or activities that disrupt the vaginal microbiome. So, her partner's previous sexual history could potentially contribute to her developing BV.

What are uses of protozoa -- except botox or Botulinum Toxin Type A?

Bifidobacteria are a genus of bacteria that make up a large portion of the microbes found in the human intestines. Known as gut flora, they are necessary for proper digestion. Some dairy producers market strains of Bifidobacteria (B. animalis) in their yogurt products as probiotics,beneficial organisms that assist the body's naturally occurring gut flora. Activa, produced by Dannon, contains a strain of B. animalis, which the company markets as Bifidus Regularis (Bifidus Digestivum in the UK).

What are three factors that can trigger cyst formation in protozoa?

1.) Lack of nutrients

2.) Dry environmental conditions

3.) Presence of harmful chemicals

What are facts about protozoans?

Protozoans are single-celled organisms that belong to the Kingdom Protista. They come in various shapes and sizes, and many live in aquatic environments. Protozoans are known for their diverse feeding strategies, ranging from photosynthesis to engulfing food particles.

Describe the life cycle of plasmodium in mosquito?

plasmodiumthey can finish their growth for about 7 to 10 days at 20C or 68F.Their life cycle proceeds in two hosts. They are

1) Mosquito serves as primary host

2) Man serves as secondary host

3) Monkey serves as reservoir host

How does euglena dispose of wastes?

Beluga whales gets rid of its metabolic wastes through contractile vacuoles. The food is ingested into the body to form a food vacuoles. The food vacuole travels along the body where the required nutrients are absorbed. The remaining waste travels out of the body by means of a contractile vacuole.

What best describes the amoebas division?

(1)mode of asexual account in which a single parent is involved.the amoeba cell,which is unicellular, divides into two daughter cells which are identical.first the nucleus divides,then the cytoplasm and then a plasma membranes. (2)sporulation when the environmental conditions are unfavourable,the amoeba cell secrets a 3 forming a cyst.this is called encystation.when are favorable the cell divides by multiple fission and form small pseudopodiospores.the like totally wall breaks all the his houses pseudopodiospores are relased.