What is the cell structure of protists?

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What is the cell structure of protists?

Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area. Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.

What cell structures do all protists have in common?

Like all other eukaryotes, protists have a nucleus containing their DNA. They also have other membrane-bound organelles, such as mitochondria and the endoplasmic reticulum. Most protists are single-celled. Some are multicellular.

What characteristics do plant-like protists share?

The characteristic that makes algal protists (better known as ”algae”) plant-like is the ability to do photosynthesis. Like plants, plant-like protists have chloroplasts that contain the pigment chlorophyll that collects and converts light into energy.

What type of cells does protists have?

Protists are eukaryotes as they possess a nucleus and other membrane-bound organelles (structures that perform a specific job). At one time, simple organisms such as amoebas and single-celled algae were classified together in a single taxonomic category: the kingdom Protista.

What is the cell wall of Protista?

Protista. Protists are single-celled and usually move by cilia, flagella, or by amoeboid mechanisms. There is usually no cell wall, although some forms may have a cell wall. They have organelles including a nucleus and may have chloroplasts, so some will be green and others won’t be.

Do plants have a cell membrane?

Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape.

Which structure and function are common to all plants and some protists?

Which structure and function are common to all plants and some protists and distinguish them from all animals? A . Key: Chloroplasts, which are absent in all animal cells, convert light energy into chemical energy within all plants and some protists .

Which characteristic do all protists have?

A few characteristics are common between protists.

They are eukaryotic, which means they have a nucleus.
Most have mitochondria.
They can be parasites.
They all prefer aquatic or moist environments.

Are plant-like protists heterotrophs or autotrophs?

autotrophs
2. Algae (plant-like protists) are autotrophs they get nutrition from photosythesis. 3. Slime moulds and water moulds (fungus-like protists) are also heterotrophs, like protozoa.

What are cell walls made of in Protista?

Plant-Like Protists Some protists have cell walls composed of polymers similar to cellulose found in plants. A polymer is a large molecule made up of repeating subunits. In the case of cellulose, the repeating subunit is glucose. Cellulose is the material that gives the wood, stem, and leaves of a plant its strength.

Do plant-like protists have cell walls?

Plant-like protists, or algae, usually have cell walls. These are similar to the cell walls of land plants in that they contain cellulose. Although most algae have cell walls some, such as the euglenids, don’t.

What do plant-like protists have in common with plants?

Plant-like Protists Plant-like protists (AKA algae) are usually photosynthetic organisms, and most contain chloroplasts and/or chlorophyll. Algal cells usually have a cell wall which, like the cell walls of true plants, contain cellulose. However, unlike true plants, algae lack leaves, stems, and roots.

What are the characteristics of protist cells?

Do protists have ribosomes?

Protists are one-celled or multi-cellular eukaryotes that have a nucleus, ribosomes, endoplamic reticulum, golgi apparatus, and mitochondria within their cell membranes. Photosynthetic protists also have chloroplasts.

What envelopes protist cells?

Animal-like cell membranes or plant-like cell walls envelope protist cells. In other protists, glassy silica-based shells or pellicles of interlocking protein strips encase the cells.