photosynthesis

Examples of photosynthesis in the following topics:

• Oxygenic Photosynthesis

  • In plants, algae and cyanobacteria, photosynthesis releases oxygen .
  • This is called oxygenic photosynthesis.
  • Photosynthesis is not only needed by photosynthetic organism for energy but also for carbon fixation .
  • In plants, algae and cyanobacteria, photosynthesis releases oxygen.
  • This is called oxygenic photosynthesis.

• Main Structures and Summary of Photosynthesis

  • The process of photosynthesis occurs in a middle layer called the mesophyll.
  • The basic equation for photosynthesis is deceptively simple.
  • Oxygen is generated as a waste product of photosynthesis.
  • Photosynthesis takes place in the mesophyll.
  • Describe the main structures involved in photosynthesis and recall the chemical equation that summarizes the process of photosynthesis

• Study of Photosynthesis

  • Mass spectrometry has been used to study the ratio of carbon isotopes in various plants to understand the mechanisms of photosynthesis.
  • Mass spectrometry has been used to study the ratio of isotopes in various plants to understand the mechanisms of photosynthesis.
  • Stable carbon isotopes in carbon dioxide are utilized differentially by plants during photosynthesis.
  • Describe the use of radioactive isotopes in the study of photosynthesis

• The Purpose and Process of Photosynthesis

  • The process of photosynthesis converts light energy to chemical energy, which can be used by organisms for different metabolic processes.
  • All of this energy can be traced back to the process of photosynthesis and light energy from the sun.
  • Photosynthesis is essential to all life on earth.
  • The importance of photosynthesis is not just that it can capture sunlight's energy.
  • Therefore, photosynthesis powers 99 percent of Earth's ecosystems.

• The Energy Cycle

  • CO2 is no more a form of waste than oxygen is wasteful to photosynthesis.
  • Photosynthesis absorbs light energy to build carbohydrates in chloroplasts, and aerobic cellular respiration releases energy by using oxygen to metabolize carbohydrates in the cytoplasm and mitochondria.
  • Photosynthesis consumes carbon dioxide and produces oxygen.
  • These two powerhouse processes, photosynthesis and cellular respiration, function in biological, cyclical harmony to allow organisms to access life-sustaining energy that originates millions of miles away in the sun.
  • Photosynthesis consumes carbon dioxide and produces oxygen.

• CAM and C4 Photosynthesis

  • Photosynthesis in desert plants has evolved adaptations that conserve water.
  • Because stomata must open to allow for the uptake of CO2, water escapes from the leaf during active photosynthesis.
  • Some plants such as cacti can prepare materials for photosynthesis during the night by a temporary carbon fixation and storage process, because opening the stomata at this time conserves water due to cooler temperatures.
  • In addition, cacti have evolved the ability to carry out low levels of photosynthesis without opening stomata at all, a mechanism for surviving extremely dry periods.
  • The harsh conditions of the desert have led plants like these cacti to evolve variations of the light-independent reactions of photosynthesis.

• Anoxygenic Photosynthesis

  • Chlorophototrophy can further be divided into oxygenic photosynthesis and anoxygenic phototrophy.
  • Anoxygenic photosynthesis is the phototrophic process where light energy is captured and converted to ATP, without the production of oxygen.
  • There are several groups of bacteria that undergo anoxygenic photosynthesis: Green sulfur bacteria , green and red filamentous anoxygenic phototrophs (FAPs), phototrophic purple bacteria, phototrophic Acidobacteria, and phototrophic heliobacteria.
  • Bacteriochlorophylls c-g have the corresponding "peak" absorbance at more blue wavelengths when dissolved in an organic solvent, but are similarly red-shifted within their natural environment (with the exception of bacteriochlorophyll f, which has not been naturally observed).Unlike oxygenic phototrophs, anoxygenic photosynthesis only functions using (by phylum) either one of two possible types of photosystem.
  • Discuss the characteristics that classify a specific type of chlorophototrophy as anoxygenic photosynthesis

• The Two Parts of Photosynthesis

  • Light-dependent and light-independent reactions are two successive reactions that occur during photosynthesis.
  • Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions).

• Anoxygenic Photosynthetic Bacteria

  • Some groups of bacteria can capture light energy and convert it to ATP without the production of oxygen through anoxygenic photosynthesis.
  • Chlorophototrophy can further be divided into oxygenic photosynthesis and anoxygenic phototrophy.
  • Unlike oxygenic phototrophs, anoxygenic photosynthesis only functions using either one of two possible types of photosystem.
  • The purple sulfur bacteria are a group of Proteobacteria capable of photosynthesis.
  • Anoxic conditions are required for photosynthesis; these bacteria cannot thrive in oxygenated environments.

• Cyanobacteria

  • The cyanobacteria, also known as blue-green bacteria, are a phylum of bacteria that obtain their energy through photosynthesis.
  • Cyanobacteria, also known as blue-green bacteria, blue-green algae, and Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis.
  • Cyanobacteria get their color from the bluish pigment phycocyanin, which they use to capture light for photosynthesis.
  • The water-oxidizing photosynthesis is accomplished by coupling the activity of photosystem (PS) II and I (Z-scheme).
  • Cyanobacteria, also known as blue-green bacteria, blue-green algae, and Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis