are autotrophic, usually photosynthetic, organisms
Protista knowledge. Autotrophic protista. They can perform photosynthesis and mainly consist of unicellular algae. They can be divided into a number of systematic groups according to the shape of their cells and the type of photosynthetic pigments they use. Bacteria: Any of a group of microscopic organisms that are prokaryotic, i.e., that lack a membrane-bound nucleus or organelles. Bacteria can be classified in many ways, but it is particular helpful to break them down according to what sources of energy and nutrition they require. Phototrophs extract energy from the sun via photosynthesis. The Plant Kingdom is made up of organisms that can perform photosynthesis to make food. Characteristics of the Plant Kingdom: multicellular, eukaryotic, autotrophic, and mostly green in color. The Protist Kingdom consists of mostly unicellular organisms that can have characteristics similar to plants, animals or fungi. Characteristics of Protists: mostly unicellular, few multicellular, eukaryotic, can be heterotrophic or autotrophic. Ex: algae, Paramecium, kelp (multicellular). Autotrophs (also called producers) can form their own food either by using sunlight and photosynthesis (phototrophs) or by obtaining chemical energy through oxidation (chemotrophs). For the most part, autotrophs often make their own food by using sunlight, carbon dioxide, and water to form sugars which they can use for energy. Some examples of autotrophs include plants, algae, and even some bacteria. Autotrophs are important because they are a food source for heterotrophs (consumers). Now, let's look at 10 examples of autotrophs all around us. slide 2 of 4. Plant Autotrophs Plants are all around us. Chemoautotrophs, organisms that obtain carbon through chemosynthesis, are phylogenetically diverse, but groups that include conspicuous or biogeochemically-important taxa include the sulfur-oxidizing gamma and epsilon proteobacteria, the aquificaeles, the methanogenic archaea and the neutrophilic iron-oxidizing bacteria. Many microorganisms in dark regions of the oceans also use chemosynthesis to produce biomass from single carbon molecules. Chrysophyta or golden algae: they live in both sea and freshwater; the most common ones are diatoms, which are equipped with a typical siliceous shell (SiO2), consisting of two parts joined with each other like a box and a lid. Chapter 10 - Photosynthesis. Plants and other autotrophs are the producers of the biosphere. Chloroplasts are the sites of photosynthesis in plants. The light reactions and the Calvin cycle cooperate in converting light energy to the chemical energy of food. Chapter 11- the Reproduction of Cells. In biochemistry, chemosynthesis is the biological conversion of one or more carbon-containing molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (e.g. hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis. These distinctions are important because of the way they affect the carbon cycle. In the carbon cycle carbon is transformed by photosynthetic organisms from inorganic forms (mainly CO2 to organic forms (usually glucose), then - by phototrophic and heterotrophic bacteria - among many different organic carbon forms.
Yes, autotrophic, are usually photosynthetic, organisms.