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Photosynthesis Lab Using Microalgae - Ms. Kallin's Website

01/02/2000 · Full-text (PDF) | An understanding of photosynthesis is fundamental for microalgal biotechnology

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12/04/2013 · Masojídek, J., Torzillo, G

Euglena can grow using sunlight, water, CO2 and fertilizers with its capability to photosynthesize like plants. Another special feature is its capability to grow under high CO2 concentration of 1000 times the normal content in air.

23/02/2010 · Maximum Photosynthetic Yield of Green Microalgae in ..

Algae are a very diverse group of predominantly aquatic photosynthetic organisms that account for almost 50% of the photosynthesis that takes place on Earth. Algae have a wide range of antenna pigments to harvest light energy for photosynthesis giving different types of algae their characteristic colour. Early work done with algae contributed much to what is presently known about the carbon dioxide fixation pathway and the light harvesting reactions. The processes of photosynthesis in algae and higher plants are very similar. From among the three types of carbon dioxide‐concentrating mechanisms known in photosynthetic organisms, two types are found in different types of algae. Algae are proposed to play a role in the global carbon cycle by helping remove excess carbon dioxide from the environment. Recently, algae are recognized as a promising biodiesel source due to its efficient absorption and conversion of solar energy into chemical energy.

Algal Photosynthesis - eLS: Essential for Life Science

Behrenfeld MJ, Bale A, Kolber Z, Aiken J and Falkowski PG (1996) Confirmation of iron limitation of phytoplankton photosynthesis in the equatorial Pacific Ocean. Nature 383: 508–511.

Euglena, microalgae with the features of both plants and animals grows in fresh water.
It can store energy by the means of photosynthesis like plants while it can also move around like other microorganisms.
Organisms that have both the features of plants and animals are very rare in biology.

Micro Algae | Photosynthesis | Algae

Moroney JV and Somanchi A (1999) How do algae concentrate CO2 to increase the efficiency of photosynthetic carbon fixation? Plant Physiology 119: 9–16.

The need for more efficient wastewater treatment has been met with more technologically advanced, energyintensiveengineered treatment systems that require major capital investments and substantial ongoing operationsand maintenance costs. Although highly effective, these advanced treatment systems are often out of reachfor those in less developed or rural areas. However, an effective alternative exists. Low-energy input systems thatutilize microalgae and the natural biological process of photosynthesis can drive efficient wastewater treatmentsystems.

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  • Comprehensive model of microalgae photosynthesis

    Comprehensive model of microalgae photosynthesis rate as a function of culture conditions in photobioreactors

  • both light paths for both microalgae

    Since microalgae rely on photosynthesis, the availability of sunlight to reach the microalgae is critical.

  • Optimization of photosynthetic light energy utilization by ..

    This study aimed to elucidate what occurs during microalgal photosynthesis ..

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Single celled microalgae are among the most productive autotrophic ..

Microalgae play a vital role in the assimilation of pollutants in natural water systems. The various organic compoundscreated by algal photosynthesis in these natural environments enter the aquatic food chain and providefood to a variety of microbes and other heterotrophs. In addition, the reduced and stabilized carbon is oftendirectly deposited as detritus to form organic peat sediments in wetlands, ponds and lakes. Since the algal andflora species in natural water systems are dependent on many factors such as temperature, pH, age, season, altitudeand water composition and remain in a relatively delicate balance, the addition of any new pollutant sourcefor potential treatment is not recommended. However, artificial environments can be created to concentrate,control and tailor the growth of microalgae to efficiently treat a variety of wastewaters.

Jovem Revela a Matemática Por Trás de Seus 95% de Acertos.

N2 - The unbridled increase in plastic pollution of the world's oceans raises concerns about potential effects these materials may have on microalgae, which are primary producers at the basis of the food chain and a major global source of oxygen. Our current understanding about the potential modes and mechanisms of toxic action that plastic particles exert on microalgae is extremely limited. How effects might vary with particle size and the physico-chemical properties of the specific plastic material in question are equally unelucidated, but may hold clues to how toxicity, if observed, is exerted. In this study we selected polystyrene particles, both negatively charged and uncharged, and three different sizes (0.05, 0.5 and 6 μm) for testing the effects of size and material properties. Microalgae were exposed to different polystyrene particle sizes and surface charges for 72 h. Effects on microalgal photosynthesis and growth were determined by pulse amplitude modulation fluorometry and flow cytometry, respectively. None of the treatments tested in these experiments had an effect on microalgal photosynthesis. Microalgal growth was negatively affected (up to 45%) by uncharged polystyrene particles, but only at high concentrations (250 mg/L). Additionally, these adverse effects were demonstrated to increase with decreasing particle size.

Mass Production of Microalgae at Optimal Photosynthetic Rates ..

AB - The unbridled increase in plastic pollution of the world's oceans raises concerns about potential effects these materials may have on microalgae, which are primary producers at the basis of the food chain and a major global source of oxygen. Our current understanding about the potential modes and mechanisms of toxic action that plastic particles exert on microalgae is extremely limited. How effects might vary with particle size and the physico-chemical properties of the specific plastic material in question are equally unelucidated, but may hold clues to how toxicity, if observed, is exerted. In this study we selected polystyrene particles, both negatively charged and uncharged, and three different sizes (0.05, 0.5 and 6 μm) for testing the effects of size and material properties. Microalgae were exposed to different polystyrene particle sizes and surface charges for 72 h. Effects on microalgal photosynthesis and growth were determined by pulse amplitude modulation fluorometry and flow cytometry, respectively. None of the treatments tested in these experiments had an effect on microalgal photosynthesis. Microalgal growth was negatively affected (up to 45%) by uncharged polystyrene particles, but only at high concentrations (250 mg/L). Additionally, these adverse effects were demonstrated to increase with decreasing particle size.

Photosynthesis Lab Using Algal Balls

Conversely, in a microalgae wastewater treatment system, oxygen is supplied as a direct product of the photosynthesisprocess. Thus, the six-step process of supplying oxygen in a conventional activated sludge wastewatertreatment system is replaced by the much less energy intensive two-step oxygenation process where wastewateroxygenation is created by the action of microalgae respiration during the process of photosynthesis.

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