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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

What is the division of Paramecium called and why?

The division of Paramecium is called binary fission. This is because during division, the cell splits into two identical daughter cells. The process is a form of asexual reproduction for Paramecium.

Compare and contrast diatoms and dinoflagellates?

zooflagellates are more animal-like flagellates (eg, triconympha that live in the digestive tract of termites), and dinoflagellates are more plant-like flagellates (phytoflagellates) - Autotrophic organisms.

An amoeba is an organism that is made up of how many cells?

An amoeba is a unicellular organism, consisting of only one cell. It moves and feeds by extending its pseudopods, or temporary extensions of its cell membrane.

Why are protists and monerans placed in separate kingdoms?

Protists are placed in the kingdom Protista because they are Eukaryotic organisms with more complex internal structures like a nucleus and organelles. Monerans, on the other hand, are placed in the kingdom Monera because they are prokaryotic, lacking a nucleus and other membrane-bound organelles. This fundamental difference in their cellular structure is why they are placed in separate kingdoms.

Why are ground-up diatoms sometimes added to powdered cleansers?

the ground-up diatoms are added to cleansers because they are hard and don't scratch any surface.

What is a primary food of a paramecium and how is it ingested?

Paramecia feed on microorganisms like bacteria, algae, and yeasts. To gather food, the Paramecium uses its cilia to sweep prey organisms, along with some water, through the oral groove, and into the mouth opening.

Which algae is used in space research?

Chlorella is commonly used in space research due to its ability to grow rapidly and produce oxygen through photosynthesis. Its high protein content also makes it a potential food source for astronauts during long-duration space missions.

Do protists help or harm animals?

  1. Protists help because they help you make things such as ice cream, shampoo, etc...
  2. They also do photosynthesis and photosynthesis is not harmful to animals or people.(If it is a plant protists)
  3. Protists help because they live off of the cells. If the cells die it dies. It does not harm the animal or anything that it is in because it wants to keep the cells alive so it will stay alive.

I hope this helps you!!

Can blepharisma kill you?

No. There is a good chance that you have swallowed blepharisma in your lifetime already.

How does amoeba get nutrition?

Amoeba is a microphagous feeder, which means that it feeds upon small aquatic organisms like bacteria, flagellates, ciliates and minute food particles. When a hungry Amoeba approaches to some food particle, it produces out its pseudopodia in the form of food cup which engulf the food particle by turning into food vacuole. the food also contain some water. this complete ingestion. the next step is digestion which is faciliated by the lysosomes. A few lysosomes surround the food vacuole and get fused with the membrane to discharge their enzymatic contents(proteases, amylases and lipases)into it. Hence the digestion is intacellular. At this stage the vacuole becomes a digestive vacuole. It decrease in size as the water is withdrawn and its content first become acidic(pH 5.6) and then alkaline(pH 7.3). When the digestion is completed, the digestive vacuole membrane is drawn into numerous fine canals. the soluble food particles are passed into the canals and finally into the surrounding cytoplasm by micropinocytosis. the digested food, water and minerals are absorbed(absorption) into the cytoplasm and circulate in it, through cyclosis where the food is assimilated into new protoplasm or is oxidized to librate energy. the undigested food is egested by exocytosis at the rear end. Rabia Basry student of xi class

What seven diatomic elements have in common?

some are - nitrogen (N2), hydrogen (H2), Oxygen (O2), Fluorine (F2), and Chlorine (Cl2) are, but Iodine (I2) is a dull grey solid and bromine (Br2) is a deep red-brown liquid.

Hope i helped

What process allows a unicellular organism like an amoeba to eliminate waste?

Amoebas eliminate waste through a process called exocytosis, where waste materials are packaged into vesicles and expelled from the cell. These vesicles fuse with the cell membrane, releasing the waste outside the cell.

Is paramecium a single-celled organism?

Paramecium is a group of unicellularciliate protozoa, which are commonly studied as a representative of the ciliate group, and range from about 50 to 350 μm in length. Simple cilia cover the body, which allow the cell to move with a synchronous motion (like a caterpillar) at speeds of approximately 2,700μm/second (12 body lengths per second). There is also a deep oral groove containing inconspicuous tongue-like compound oral cilia (as found in other peniculids) used to draw food inside. They generally feed on bacteria and other small cells, making them heterotrophs. Osmoregulation is carried out by a pair of contractile vacuoles, which actively expel water from the cell absorbed by osmosis from their surroundings. They are relatively large protists and can easily be seen with a medium-power microscope.

Paramecia are widespread in freshwater environments, and are especially common in scums. Recently, some new species of Paramecia have been discovered in the oceans.

Certain single-celled eukaryotes, such as Paramecium, are examples for exceptions to the universality of the genetic code: in their translation systems a few codons differ from the standard ones.

Explain how amoeba and paramecia move?

Amoeba extend pseudopodia by using their cytoskeleton and then drag the rest of the cell with this extension. Paramecium have cilia that line the cell and move it rather like the stroke of oars.

Which disease plasmodium ovale can cause?

Plasmodium ovale can cause malaria in humans. It is one of the five species of parasites that can cause this infectious disease when transmitted to humans through the bite of an infected Anopheles mosquito. Symptoms may include fever, chills, headaches, and in severe cases, can lead to complications affecting multiple organs.

What are all five kingdoms of the classification system?

this are the five-kingdom of system

Monera (includes Eubacteria and Archeobacteria,

Protista,Fungi,

Plantae,

Animalia.

What shape are all diatomic molecules?

Diatomic molecules have 2 atoms combined. The way they line up is determined by the desire to keep each atom as far away as possible from all the other electrons in the molecule apart from those being shared. The only way to do this is to be a linear molecule, so the atoms are side by side.

What is the relative size of amoeba?

30 feet wide on the sea floor

that is an amoeba from Dungeons and Dragons.

there is Gromia sphaerica the size of a grape, and Pelomyxa palustris that can reach 5 millimeters across. but usually they are smaller than 0.1mm.

What is an amoebas habitat?

The Habitat of Amoeba is under water, i.e lakes, ponds. Some say that Amoeba Is its own habitat because its all just a bunch of Amoebas stuck together. I suggest using both of these theories, in whatever case you are looking up the following question. With love, and peace, - The 12 year old, anonymous

What cells act as the gametes in the conjugation of spirogyra or paramecium?

In the conjugation of Spirogyra, the gametes are the specialized reproductive cells called gametangia. In Paramecium, the gametes are the micronuclei, which undergo meiosis to form haploid nuclei for genetic exchange during conjugation.

How do paramecium get oxygen?

Paramecium obtain oxygen through diffusion across their cell membrane. This process allows oxygen to pass from the surrounding water into the cell where it is used for cellular respiration to produce energy.

What is the Process in which paramecium exchange DNA?

Paramecium exchange DNA through a process called conjugation. During conjugation, two paramecia come together and form a cytoplasmic bridge through which genetic material is exchanged. This genetic exchange results in increased genetic diversity among the paramecia.

How the paramecium reproduces?

Paramecium reproduces asexually through binary fission, where the cell divides into two identical daughter cells. Additionally, they can also undergo sexual reproduction through a process called conjugation, where genetic material is exchanged between two individuals to increase genetic diversity.

Can move like amoebas and reproduce like fungi?

Organisms that can move like amoebas and reproduce like fungi include slime molds. Slime molds are single-celled organisms that can join together to form multicellular structures when reproducing. They move by extending their cytoplasmic projections, known as pseudopodia, similar to how amoebas move.

Explain why the kingdom protista is called the Junk Drawer?

The kingdom Protista is sometimes referred to as the "junk drawer" because it contains a diverse group of organisms that do not fit neatly into the other kingdoms of life (Animalia, Plantae, Fungi). Protists vary greatly in terms of their characteristics, habitats, and evolutionary history, making them challenging to categorize. This diversity has led to the informal comparison of the Protista kingdom to a miscellaneous drawer where things that don't quite fit anywhere else are placed.