Are Protoctista prokaryotes?

Are Protoctista prokaryotes?

Protists are eukaryotic organisms. Kingdom Protista contains all of the eukaryotic organisms that are not plants, animals, or fungi.

Are protists eukaryotic or prokaryotic and why?

Protists are eukaryotes, which means their cells have a nucleus and other membrane-bound organelles. Most, but not all, protists are single-celled. Other than these features, they have very little in common. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.

Are protists eukaryotes?

protist, any member of a group of diverse eukaryotic, predominantly unicellular microscopic organisms. They may share certain morphological and physiological characteristics with animals or plants or both.

Are monera prokaryotic or eukaryotic?

moneran, any of the prokaryotes constituting the two domains Bacteria and Archaea. The monerans are distinct from eukaryotic organisms because of the structure and chemistry of their cells. As prokaryotes, they lack the definite nucleus and membrane-bound organelles (specialized cellular parts) of eukaryotic cells.

What is the meaning of Protoctists?

/ (prəʊˈtɒktɪst) / noun. (in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds.

What groups are in kingdom Protoctista?

Kingdom Protista includes all eukaryotes that are not animals, plants, or fungi.

Are protists biotic?

Biotic factors are any living component that affects another organism within its ecosystem. Examples: Animals (vertebrates and invertebrates), plants, fungi, protists, and bacteria.

Are protists a Kingdom?

Protists are a group of all the eukaryotes that are not fungi, animals, or plants. As a result, it is a very diverse group of organisms. The eukaryotes that make up this kingdom, Kingdom Protista, do not have much in common besides a relatively simple organization. Protists can look very different from each other.

Are Monera and prokaryotes the same?

Monera is a kingdom in biology that comprises prokaryotes, which are single-celled organism that have no true nucleus. Since monerans are prokaryotes, such as bacteria, they have no membrane-bound organelles.

Is Monera multicellular or unicellular?

Monerans are unicellular, prokaryotic organisms found in a moist environment and lack a true nucleus.

Why do biologists consider kingdom Protoctista as a Polyphyletic group of organisms?

Biologists consider the protists as a polyphyletic group, meaning they probably do not share a common ancestor. The word protist comes from the Greek word for the very first, which indicates that researchers believe protists may have been the first eukaryotes to evolve on Earth.

Do Protoctists have a nucleus?

While exceptions exist, they are primarily microscopic and unicellular, or made up of a single cell. The cells of protists are highly organized with a nucleus and specialized cellular machinery called organelles.

Are protists prokaryotic or eukaryotic?

Protists are eukaryotic organisms. Kingdom Protista contains all of the eukaryotic organisms that are not plants, animals, or fungi. Protists are eukaryotic organisms

What is the difference between prokaryotic and eukaryotic cells?

The main difference between eukaryotic and prokaryotic cells is that eukaryotes contain membrane-bound organelles, whereas prokaryotes do not. As eukaryotic organisms, protists contain a nucleus and other membrane-bound organelles such as endoplasmic reticulum and Golgi apparatus.

Are protists photosynthetic or heterotrophic?

Protists gain nutrition in a number of ways. According to Simpson, protists can be photosynthetic or heterotrophs (organisms that seek outside sources of food in the form of organic material). In turn, heterotrophic protists fall into two categories: phagotrophs and osmotrophs.

What are the characteristics of protist cells?

Like all eukaryotic cells, those of protists have a characteristic central compartment called the nucleus, which houses their genetic material. They also have specialized cellular machinery called organelles that execute defined functions within the cell. Photosynthetic protists such as the various types of algae contain plastids.