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2021-05-14

How are protists and Monerans different?

How are protists and Monerans different?

What are some examples of Monera and Protista? The basic difference between them is – Monera are unicellular and prokaryotic cellular structures, whereas Protista are unicellular and eukaryotic cellular structure. Cell organelles are absent in Monera, but Protista is well-defined and has membrane-bound organelles.

What characteristics distinguish protists from Monerans quizlet?

Protists: Most once-celled, make their own food or feed on living or once-living things. Monerans: Most are one-celled, no cell nuclei, some make their own food, some feed on living or once living things.

How do archaea and protists differ?

Archea includes all single celled Prokaryotic organisms which lack nuclear membrane and membrane bound cell organelles except ribosomes. While Protists include Single celled Eukaryotic organisms with well defined nuclear membrane and cell organelles.

What is the difference between protists and prokaryotes?

Protists are all eukaryotes and therefore all have cell organelles, most of them are single-celled but multi-celled form exists. Prokaryotes are usually single-celled organisms. They have plasma membrane surrounding the cell but no membrane bound organelles such as the mitochondria, nucleus or Golgi bodies.

Can protists cause disease?

Most protist diseases in humans are caused by protozoa. Protozoa make humans sick when they become human parasites. Trypanosoma protozoa cause Chagas disease and sleeping sickness. Giardia protozoa cause giardiasis, and Plasmodium protozoa cause malaria.

What are the benefits of protists?

Protists produce almost one-half of the oxygen on the planet through photosynthesis, decompose and recycle nutrients that humans need to live, and make up a huge part of the food chain. Humans use protists for many other reasons: Many protists are also commonly used in medical research.

What are the five uses of protists?

Give at least five uses of Protist?

  • Protists are important manufacturers of oxygen.
  • Protists cause the decay of organisms.
  • Algae, a protist, serves as habitat for sea urchins and other marine animals.
  • Algae is also used for food by people.
  • Another use of algae is that it is used in extracts for making cosmetics, ice cream, and many more.

How do protists affect humans?

Some severe diseases of humans are caused by protists, primarily blood parasites. Malaria, trypanosomiasis (e.g., African sleeping sickness), leishmaniasis, toxoplasmosis, and amoebic dysentery are debilitating or fatal afflictions.

What are some protists that are important to humans?

Brown and Red Algae Phaeophyta, or brown algae, are also beneficial types of protist. These include algae such as kelp. These algae are food sources for fish as well as humans. They have large amounts of iodine, which is a necessary nutrient for life.

Are animal-like protists good or bad?

Protists are eukaryotic, aquatic organisms that can be unicellular or multicellular. Usually, harmful protists are animal-like protists that act as parasites in humans. We looked at a number of examples, including protists that cause: Malaria.

Do protists make their own food?

Plant-like protists are autotrophs. This means that they produce their own food. They perform photosynthesis to produce sugar by using carbon dioxide and water, and the energy from sunlight, just like plants. Protists can be unicellular (single-celled) or multicellular (many-celled).

Which two protists are animal-like?

Animal-like protists include the flagellates, ciliates, and the sporozoans.

Which two protists can make their own food?

Obtain and Use Energy Some protists are photoautotrophs, manufacturing their own energy by photosynthesis (using sunlight). Algae and kelp are great examples of a protist that uses photosynthesis to eat.

What is the main difference between protists and bacteria?

Protists have a highly evolved and well defined cell structure in comparison to Bacteria. Protists are only found in moist surroundings, while bacteria are found everywhere. Bacteria are single celled while protists can be single celled or multicellular.

What are the similarities of all protists?

Both are cells containing a membrane, cytoplasm, DNA, RNA, ribosomes, proteins, a means of producing ATP (probably from glucose), a method of internal transport, and a method of reproduction (interestingly, protists retain the ability to reproduce asexually, like bacteria, although many can also reproduce sexually via …

Are viruses protists?

Protists are unicellular eukaryotes and harbor a wide spectrum of viruses, from small RNA viruses to giant DNA viruses.

Why may bacteria be smaller than protists?

Bacteria can’t shrink more than they have already because there wouldn’t be enough space left for DNA and necessary proteins. They can’t get much bigger, because larger species have much greater energy demands in proportion to their increased girth.

Is bacteria smaller than protists?

These are small eukaryotes. A eukaroytic organism can be unicellular or multicellular; most (but not all) protists are actually unicellular. Unlike bacteria, protists have specialized organelles, including a true nucleus confined by a nuclear membrane. Additionally, protists are generally larger in size.

Is yeast a protist?

As we know, Yeast (Saccharomyces cerevisiae) is classified as a fungus. But it’s unicellular and eukaryotic, so it very well fits the criteria for being under Protista. Protists have pretty diverse feeding patterns too. Yeast can very well be put under Protista without any issues (from whatever little I know about it).