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What are some protists that go through photosynthesis?

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Photosynthesis & Cellular Respiration, Protists, and …

These bacteria somehow entered the larger prokaryotes and eventually became the organelles of the larger cell. This theory is referred to as (endo meaning inside). This is how scientists believe mitochondria and cholorplasts came to exist as organelles in eukaryotic organisms.

There are more than 50,000 species of protists. Many live as single celled organisms. Others are actually multicellular. Some protists are heterotropic while others are autotrophic through the process of photosynthesis.

Protists have great medical importance because several cause diseases in humans. However, they are also of great ecological importance. Being aquatic, the photosynthetic protists give off oxygen and function as producers in both fresh and saltwater ecosystems. They are a part of , which are organisms that are suspended in water and serve as food for heterotrophic protists and animals.

Protists can be divided into categories based on their nutrition. There are plant like (photosynthetic) protists, animal like (heterotrophic) and fungi like (decomposers) protists. The term is often used to describe the animal like protists.

Many protists reproduce asexually by mitosis (binary fission). The parent cell simply divides into two identical daughter cells. Soem protists, however, can reproduce sexually under some conditions. During sexual reproduction, two organisms become attached to each other in a process called . They share their DNA allowing for new genetic combinations.

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Photosynthetic Protists: Definition & Examples | …

In respiration energy is released fromsugars when electrons associated with hydrogen are transported to oxygen (theelectron acceptor), and water is formed as a byproduct. The mitochondriause the energy released in this oxidation in order to synthesize ATP. Inphotosynthesis, the electron flow is reversed, the water is split (not formed),and the electrons are transferred from the water to CO2 and in theprocess the energy is used to reduce the CO2 into sugar. Inrespiration the energy yield is 686 kcal per mole of glucose oxidized to CO2,while photosynthesis requires 686 kcal of energy to boost the electrons from thewater to their high-energy perches in the reduced sugar -- light provides thisenergy.

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This description of photosynthesis is vastly simplified. In truth, it is much more complex. There are dozens of steps or stages in the process, and more subtle chemical changes than are shown above. Mineral nutrients dissolved in water are also necessary. A little of the light energy is used to create proteins and fatty acids in different kinds of photosynthesis.

The ability for eukaryotes to carry out photosynthesis was made possible by one or more symbiotic associations between heterotrophic eukaryotes and photosynthetic prokaryotes (or their descendents). There were several primary symbioses between eukaryotes and blue green algae. In one lineage, the photosynthetic organism lost much of its genetic independence and became functionally and genetically integrated as chloroplasts within the host cell. Modern chloroplasts, also called plastids, are bounded by two or more membranes, and most usually lie free in the cytoplasm, but in some cases they may be located within a fold of the nuclear envelope, or may be associated with the cytoplasm and residual nucleus of a eukaryotic endosybiont. The descendents of some of these primary plastids have gone on to form further associations. At least two types of protists (chloroarachniophytes and cryptomonads) have acquired 'plastids' by forming symbioses with eukaryotic algae. This are referred to as secondary symbioses.

What Are Protists? - Live Science

Periodic Chart of the Elements with correlation to their health aspects - , and its health effects and environmental effects, In four languages

Like land plants, phytoplankton have chlorophyll to capture sunlight, and they use photosynthesis to turn it into chemical energy. They consume carbon dioxide, and release oxygen. All phytoplankton photosynthesize, but some get additional energy by consuming other organisms.

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  • They are a well defined group of unicellular, photosynthetic forms

    Nucleus - containing DNA carrying the genetic code for enzymes and other proteins used in photosynthesis

  • Biology of Animals & Plants - Photosynthesis

    photosynthestic Protists

  • Characteristics of Protists | Boundless Biology

    This lesson defines protist and photosynthetic protists and gives examples of some relevant species

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Quia - AP Chapter 28 - Protists (detailed)



An ecosystem consists of the whole community of living organisms (biocenosis), the abioticcomponent of a certain environment (biotope) and their relationships.
The relationships essentially consist in a flux of substances which pass from thenon-living components to living ones and in a flux of energy which passes from thephotosynthetic organisms (plants) to the herbivorous animals, then to carnivores. Thewastes and the dead organisms are then decomposed by the micro-organisms which brake downthe substances back to simple components, in a full cycle.
1 - With a shovel in a field or in a wood, dig a square hole of about half a meter (1 1/2feet) square and about 40 cm (18") deep. Describe the non-living components of thesoil and all forms of life you find: roots, earthworms, snails, centipedes, spiders,crickets, etc. To complete the description of the ecosystem of the soil, look forinformation on the role of each of these organisms and the relationships with the otherforms of life of this environment.
2 - In similar way you have studied the soil ecosystem, you can analyze other ecosystemssuch as the ones in a forest, pond, shore, or desert.
G. and L. Durrell (2) can be useful, or there are many other books on this matter.
An Illustration of a Soil Ecosystem
Protocols for a Soil Ecosystem Approach for Characterizing Soil Biodiversity
Internet keywords: soil ecosystem.

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