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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

Diatomic elements are represented by what?

Diatomic elements are elements which consist of two atoms of the same element joined together in their normal elemental state. The diatomic elements are:

hydrogen

oxygen

nitrogen

and the halogens (chlorine, bromine, etc.)

What is the evidence that paramecium are living?

Evidence that Paramecium is living is that they eat, respond to the enviroment, produce waste, reproduce, produce energy, and all of the other characteristics of life! They are ABSOLUTELY living, though.

What would happen to the paramecium if the water-expelling vesicle stopped working?

The paramecium would eventually die because the paramecium wouldn't get any water and without the water-expelling vesicle the paramecium can't get the water out without getting other bacterias while doing so.

What are facts about the vorticella protist?

Vorticella is a type of ciliated protozoan that can be found in freshwater environments. They are characterized by a bell-shaped body with a long stalk that attaches to substrates. Vorticella feed on bacteria and other small organisms by creating water currents with their cilia.

What is a plasmodium composed of?

Pseudoplasmodium is also known as a slug. A slug is about 2 to 4 mm long and composed of up to one hundred thousand cells.

How does a Paramecium make babies?

By both asexual and sexual reproduction.

Asexual reproduction is accomplished by simple binary fission, where the cell just splits in two after replication of genes and organelle duplication.

Sexual reproduction requires two paramecium to align themselves side by side where micro nuclei are exchanged. ( paramecium have two nuclei )

What are diatom shell uses?

Diatom shells, also known as frustules, have various uses due to their unique properties. They are commonly used in water filtration, as their porous structure can effectively remove impurities and toxins. Additionally, diatom shells are used in abrasive scrubbing products, such as toothpaste and metal polishes, due to their gentle but effective exfoliating properties. In agriculture, they can also be used as a natural insecticide by disrupting the exoskeletons of insects.

Compare how Paramecium Plasmodium vivax and Euglena reproduce?

Paramecium reproduces asexually through binary fission, where the cell splits into two identical daughter cells. Plasmodium vivax reproduces both sexually and asexually, utilizing mosquitoes and humans in its life cycle. Euglena reproduces asexually through binary fission as well, but can also undergo a form of sexual reproduction called conjugation to exchange genetic material.

How tall is an amoeba?

variable shape but probably as tall as wide. Since can see through optical microscope approx 0.001"?

What are the algae involved in bioremediation?

Some examples of algae used in bioremediation include Chlorella, Spirulina, and Euglena. These species have the ability to absorb and metabolize pollutants such as heavy metals, nutrients, and organic compounds from contaminated water bodies, contributing to the cleanup of polluted environments.

What is the modern name of amoeba cells called?

The modern name of the cell amoeba is mycoplasma bacterium

What is a paramecium's food intake?

Paramecium are unicellular, so they do not have multiple cells to compose an organ. However, most paramecium engulf the food by wrapping itself around it and bringing it inside the cell, using enzymes to break the food down and absorb the nutrients. The waste is excreted by pushing it out of the cell and into the environment.

How do plasmodium cells move?

Plasmodium cells move within the human body by infecting red blood cells and using them as a mode of transport to move through the bloodstream. Once inside a red blood cell, Plasmodium cells can change shape and move within the cell to evade immune responses.

Spyrogyra is algae and bacteria or protozoan?

Spyrogyra is a type of filamentous green algae. It is not a bacterium or a protozoan.

Where does waste exit the paramecium?

Waste exits the paramecium through a structure called the anal pore, located at the posterior end of the cell. This pore allows for the expulsion of unwanted materials and maintains the cell's internal environment.

What is the family of amoeba?

Amoebas belong to the family Amoebidae within the phylum Amoebozoa. This family includes various species of amoebas that are characterized by their shape-shifting abilities and lack of a fixed form.

What is the slowest protist?

The amoeba is the slowest protist because it's only way of moving is the shift it's cytoplasm into the pseudopods, which take a long time.

If a colony of bacteria were to give rise to an amoeba what would this be an example of?

This would be an example of transformation through evolution. Over time, genetic mutations and natural selection can lead to new species arising from common ancestors. In this case, the amoeba would have evolved from the bacteria through a series of genetic changes.

How does the amoeba obtain energy?

An amoeba gets energy in the same way that you do - from its food.

An amoeba feeds by sending out 'bulges' of its cytoplasm, called pseudopodia, to surround a small food particle eg a smaller protozoan or an alga. The food, together with a small drop of the water is taken into the cell to become a food vacuole. Enzymes are then added to the food vacuole to digest the food. The soluble products of digestion are taken into the cytoplasm and used for respiration or growth.

The release of energy from food is called respiration. Usually, the sugar called glucose is used by cells

Under what conditions does a paramecium discharge its trichocysts?

A paramecium discharges its trichocysts when it perceives a threat or disturbance in its environment. This response is meant to deter predators or capture prey by releasing harpoon-like structures from its cell membrane.

Why is conjugation a type of sexual reproduction?

Conjugate is a generic term for two things joining together for a purpose.

In biology conjugation occurs when two bacteria or cells come together temporarily to exchange genetic material. The word is also used in chemistry to indicate two materials being combined so that the newly created combined material is easier to identify or isolate.

With animals and people, it also means joining together to exchange genetic material, which is another was to say sexual reproduction.

Are amoeba plant like?

No, amoebas are not plants. They are single-celled organisms belonging to the group Protists. Amoebas are known for their ability to move and feed by extending their cell membrane in a process called phagocytosis.

How does a protista reproduce?

Protists can reproduce sexually or asexually, depending on the species. Asexual reproduction methods include binary fission, multiple fission, and budding. Sexual reproduction typically involves the fusion of gametes from two different individuals.

Can amoeba reproduce by fragmentation?

Yes, amoebas can reproduce by fragmentation. During fragmentation, the amoeba divides into two or more parts, each of which develops into a new individual.

What gives shape to the paramecium and euglena?

Paramecium has a rigid outer covering called a pellicle that gives it its shape, while euglena's shape is maintained by a proteinaceous structure called the pellicle and supported by protein strips called microtubules underneath the cell membrane.