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Top competitors on query "where does the o2 produced in photosynthesis come from"
http://www.chm.bris.ac.uk/motm/chlorophyll/chlorophyll_h.htm Competition: low
He had heard of Priestley's experiments, and a few years later spent a summer near London doing over 500 experiments, in which he discovered that light plays a major role in photosynthesis. Chlorophyll in Plants The chlorophyll molecule is the active part that absorbs the sunlight, but just as with hemoglobin, in order to do its job (synthesising carbohydrates) it needs to be attached to the backbone of a very complicated protein
How Cells Harvest Energy
http://highered.mcgraw-hill.com/sites/0072437316/student_view0/chapter9/ Competition: low
Electrons delivered by NADH and FADH2 are passed along the protein chain, and are used to pump protons out of the mitochondrial matrix via the electron transport chain
Anaerobic Respiration
http://www.anaerobicrespiration.net/ Competition: low
Anaerobic digesters can also be used effectively for waste management, as the anaerobic respiration that is induced during the digestion process also reduces the emission of harmful gases into our atmosphere. There are three types of anaerobe: obligate anaerobe, which do not use oxygen for growth and even get harmed by it; aero tolerant organisms which cannot use oxygen for their growth but are able to sustain in its presence; and facultative anaerobes which can grow without the presence of oxygen and also can utilize its presence
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis :: Papers
http://www.123helpme.com/view.asp?id=122200 Competition: low
The Company makes no representations about the accuracy, reliability, completeness, or timeliness of the Material or about the results to be obtained from using the Material. The only thing which did not fit my prediction was that the graph did not level off, however I believe this did not happen as I did not have enough time to record any more results
Where does Earth's water originally come from
http://wiki.answers.com/Q/Where_does_Earth's_water_originally_come_from Competition: low
The belief was that earths water came from comets that impacted on the early Earth (recall that at this time there would be no atmosphere to disintegrate the comets). Scientists have looked at samples of ice from comets and the ratios of heavy water (water with an isotope of hydrogen called deuterium) does not match the water found in the oceans
Biology4Kids.com: Plants
http://www.biology4kids.com/files/plants_main.html Competition: low
A guy named Gregor Mendel used pea pods and their flowers to come up with some of the first ideas on how traits are passed from one generation of organism to another (genetics)
Teachers' Domain: Photosynthesis
http://www.teachersdomain.org/resource/tdc02.sci.life.stru.photosynth/ Competition: low
Learn More About Registration: Registering with Teachers' Domain is FREE and allows you to: View as many resources as you like Save, sort, and share resources using My Folders and My Groups Download resources to your desktop See standards correlations for your state Register Now For more information: Learn about our online Professional Development Courses, or review our Privacy Policy. Teachers' Domain is transitioning to PBS LearningMedia, so to access all of the Teachers' Domain features and muchg more, you will need to register on PBS LearningMedia
http://www.caltech.edu/content/stepping-stone-oxygen-earth Competition: low
Now, a team led by geobiologists at the California Institute of Technology (Caltech) has found evidence of a precursor photosystem involving manganese that predates cyanobacteria, the first group of organisms to release oxygen into the environment via photosynthesis. The team also plans to investigate a set of rocks from western Australia that are similar in age to the samples used in the current study and may also contain beds of manganese
What does chlorophyll do in photosynthesis in plants? - Yahoo! Answers India
http://in.answers.yahoo.com/question/index?qid=20070423051913AAKABNK Competition: low
7 years ago Report Abuse by Don Member since: 19 December 2006 Total points: 1,196 (Level 3) Add Contact Block It absorbs the sunlight and help plant to spread food in leaves 7 years ago Report Abuse by VISU Member since: 05 December 2006 Total points: 1,907 (Level 3) Add Contact Block Chlorophyll is a green photosynthetic pigment found in most plants, algae, and cyanobacteria. When a leaf was tested using iodine, only the green areas were shown as positive for starch, meaning that photosynthesis will not occur without chlorophyll
Why does combining hydrogen and oxygen typically produce water rather than hydrogen peroxide?: Scientific American
http://www.scientificamerican.com/article.cfm?id=why-does-combining-hydrog Competition: low
When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. Writing a half-reaction for oxygen reduction is more complicated, since oxygen can be reduced by either one, two or four electrons, as shown by the square redox scheme to the right, below
http://dictionary.reference.com/browse/photosynthesis Competition: low
Water from the roots is brought to the leaf by the vascular tissues called xylem, while the carbohydrates made by the leaf are distributed to the rest of the plant by the vascular tissue called phloem. The carotenoids are usually masked by the green color of chlorophyll, but in temperate environments they can be seen as the bright reds and yellows of autumn after the chlorophyll in the leaves has broken down
Photosynthesis, Energy, and Life - Photosynthesis keeps life going.
http://www.ftexploring.com/photosyn/photosynth.html Competition: low
Green plants, algae, and certain kinds of bacteria, can all make food for themselves from sunlight, carbon dioxide, and water (bacteria can use some other things to make food too, but we won't go there). Living organisms that can make their own food this way are called autotrophs, or licensed practitioners of autotrophy (just kidding, they don't need a license)
photosynthesis - definition of photosynthesis by the Free Online Dictionary, Thesaurus and Encyclopedia.
http://www.thefreedictionary.com/photosynthesis Competition: low
See Note at transpiration.A Closer Look Almost all life on Earth depends on food made by organisms that can perform photosynthesis, such as green plants, algae, and cyanobacteria. The carotenoids are usually masked by the green color of chlorophyll, but in temperate environments they can be seen as the bright reds and yellows of autumn after the chlorophyll in the leaves has broken down
http://quizlet.com/10586491/photosynthesis-light-reactions-and-the-calvin-cycle-flash-cards/ Competition: low
What related function do they have in plants? they dissipate excessive light energy Which of the following statements best represents the relationships between the light reactions and the Calvin cycle? the light reactions provide ATP and NADPH to the calvin cycle, and the cycle returns ADP, Pi, and NADP+ to the light reactions Where do the enzymatic reactions of the Calvin cycle take place? stroma of the chloroplast What is the primary function of the Calvin cycle? synthesize simple sugars from carbon dioxide In the carbon fixation phase of the Calvin cycle, Rubisco attaches a molecule of carbon dioxide to a molecule containing five carbons. Where did the extra ATP molecules come from? cyclic electron flow Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma
io9 - We come from the future.
http://io9.com/ Competition: low
Code, which states federal works are not subject to copyright protection, Berkeley biologist Michael Eisen decided to make them freely available on his blog. According to reports from Arizona's Banner Poison Control Center, two recently documented cases of the drug's use are believed to be the first in America
http://library.thinkquest.org/5420/cellsplt.html Competition: low
Did you know that the largest suppliers of oxygen in the whole world are tiny plants known as photoplankton? They are found in the oceans and are really important to giving us the oxygen needed to keep life going on our planet. If you would like to see an actual photograph of a chloroplast viewed through the lens of an electron microscope, visit the Nanoworld Image Gallery (you'll need to register in order to view the gallery)
Measuring the Rate of Photosynthesis with the Floating
http://www.elbiology.com/labtools/Leafdisk.html Competition: low
Ivy seems to provide very consistent results.Many different plant leaves work for this lab.My classes have found that in the spring, Pokeweed may be the best choice. EL Toolkit Home The Floating Leaf Disk Assay for Investigating Photosynthesis (A resource page) Brad Williamson Introduction: Trying to find a good, quantitative procedure that students can use for exploring photosynthesis is a challenge
http://www.jackkruse.com/emf-3-the-origin-of-life/ Competition: low
They are also limted geometrically for ATP production because their ATPase is found at the cell membrane and not in a folded inner mitochondrial membrane. The cold slowed their biochemistry down, allow for better electron flow in their bodies to replenish them, while the environment was in chaos and then got them through, to see a return to the normal Schumann resonance, light and dark signals to control the cell cycle once again
Oxygen: The Molecule that Made the World (Popular Science): Nick Lane: 9780198607830: Amazon.com: Books
http://www.amazon.com/Oxygen-Molecule-World-Popular-Science/dp/0198607830 Competition: low
To join, select "Yes, I want FREE Two-Day Shipping with Amazon Prime" above the Add to Cart button and confirm your Amazon Prime free trial sign-up during checkout. Drawing on this grand evolutionary canvas, Oxygen offers fresh perspectives on our own lives and deaths, explaining modern killer diseases, why we age, and what we can do about it
Whats the word equation photosynthesis? - Yahoo! Answers
http://answers.yahoo.com/question/index?qid=20071202231044AAiI0qp Competition: low
The cells in the interior tissues of a leaf, called the mesophyll, can contain between 450,000 and 800,000 chloroplasts for every square millimeter of leaf. Very much like plants, algae have chloroplasts and chlorophyll, but various accessory pigments are present in some algae such as phycocyanin, carotenes and xanthophylls in green algae and phycoerythrin in red algae (rhodophytes), resulting in a wide variety of colors
http://www.ask.com/question/why-do-plants-take-in-carbon-dioxide-during-the-day-and-take-in-oxygen-during-the-night Competition: low
This is because during this process, the pigment absorb the light and the green tissue of the plant makes glucose.Plants always do respiration as the humans and animals,the plant can d both jobs in the day but in the dark it only can give out CO2
'Major discovery' from MIT primed to unleash solar revolution - MIT News Office
http://web.mit.edu/newsoffice/2008/oxygen-0731.html Competition: low
It's so easy to implement," he said.'Giant leap' for clean energySunlight has the greatest potential of any power source to solve the world's energy problems, said Nocera. But the next step is carbon sequestration - like the plants do, they add carbon dioxide to the hydrogen to form more stable organic compounds that can be saved in greater quantities than is used - just like the days of the dinosaurs
Photosynthesis - definition from Biology-Online.org
http://www.biology-online.org/dictionary/Photosynthesis Competition: low
Please contribute to this project, if you have more information about this term feel free to edit this page Results from our forum Effect Of carbon dioxide on rate of photosynthesis When the concentration of CO2 is low the rate of photosynthesis is also low. It means photosynthesis is a process in which carbon dioxide (CO2), water (H2O) and light energy are utilized to synthesize an energy-rich carbohydrate like glucose (C6H12O6) and to produce oxygen (O2) as a by-product
http://www.pbs.org/wgbh/nova/nature/photosynthesis.html Competition: low
Algae Fuel In the search for alternatives to gasoline, are algae the answer? From Pond Scum to Power In this animated primer, learn why algae and other plants make oil, and how algae oil gets converted to biodiesel. Experts Debate Dinosaur Stampede Dinosaur prints in an ancient Australian fossil bed stir a modern debate; were they stampeding, or just out for a swim? Clothing from Slime? Super-strong hagfish slime might become the fabric of the future
http://www.scientificamerican.com/article.cfm?id=origin-of-oxygen-in-atmosphere Competition: low
I am not sure what is the photosynthetic oxygen production rate per gram biomass of cyanobacteria but it seems unlikely that its the sole catalyst for oxygenesis. Objectively there are a couple of things that make me wonder, how long have we observed and recorded global temperatures and population counts reliably? Can we make statements about Nature that are romantic when really it is our butts that are headed to an extinction event? I mean, perhaps it is our Nature to be the nail in the coffin for our mammalian age--so to speak
http://www2.estrellamountain.edu/faculty/farabee/biobk/BioBookPS.html Competition: low
The capture of carbon dioxide by PEP is mediated by the enzyme PEP carboxylase, which has a stronger affinity for carbon dioxide than does RuBP carboxylase When carbon dioxide levels decline below the threshold for RuBP carboxylase, RuBP is catalyzed with oxygen instead of carbon dioxide. Many Prokaryotes have only one photosystem, Photosystem II (so numbered because, while it was most likely the first to evolve, it was the second one discovered)
Oxygen - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Oxygen Competition: low
At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O 2. Uses of elemental oxygen include the production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy and life support systems in aircraft, submarines, spaceflight and diving
Photosynthesis - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Photosynthesis Competition: low
Melvin Calvin and Andrew Benson, along with James Bassham, elucidated the path of carbon assimilation (the photosynthetic carbon reduction cycle) in plants. Z scheme The "Z scheme" In plants, light-dependent reactions occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH
Where does the oxygen come from in photosynthesis? - Yahoo! Answers
http://answers.yahoo.com/question/index?qid=20071116175605AAlp2Cf Competition: low
(I left out some intermediary steps.) But overall all of the oxygen given off is from H2O O2 is then released through the stomata One of the earliest photosynthesis experiments proved this. Where does THE REST of the oxygen come from? 6 years ago by ? Member since: November 12, 2007 Total points: 3,943 (Level 4) Add Contact Block Best Answer - Chosen by Asker the 6O2 is released during the light-Dependant reactions it comes from the initial 12H20
He had heard of Priestley's experiments, and a few years later spent a summer near London doing over 500 experiments, in which he discovered that light plays a major role in photosynthesis. Chlorophyll in Plants The chlorophyll molecule is the active part that absorbs the sunlight, but just as with hemoglobin, in order to do its job (synthesising carbohydrates) it needs to be attached to the backbone of a very complicated protein
How Cells Harvest Energy
Electrons delivered by NADH and FADH2 are passed along the protein chain, and are used to pump protons out of the mitochondrial matrix via the electron transport chain
Anaerobic Respiration
Anaerobic digesters can also be used effectively for waste management, as the anaerobic respiration that is induced during the digestion process also reduces the emission of harmful gases into our atmosphere. There are three types of anaerobe: obligate anaerobe, which do not use oxygen for growth and even get harmed by it; aero tolerant organisms which cannot use oxygen for their growth but are able to sustain in its presence; and facultative anaerobes which can grow without the presence of oxygen and also can utilize its presence
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis :: Papers
The Company makes no representations about the accuracy, reliability, completeness, or timeliness of the Material or about the results to be obtained from using the Material. The only thing which did not fit my prediction was that the graph did not level off, however I believe this did not happen as I did not have enough time to record any more results
Where does Earth's water originally come from
The belief was that earths water came from comets that impacted on the early Earth (recall that at this time there would be no atmosphere to disintegrate the comets). Scientists have looked at samples of ice from comets and the ratios of heavy water (water with an isotope of hydrogen called deuterium) does not match the water found in the oceans
Biology4Kids.com: Plants
A guy named Gregor Mendel used pea pods and their flowers to come up with some of the first ideas on how traits are passed from one generation of organism to another (genetics)
Teachers' Domain: Photosynthesis
Learn More About Registration: Registering with Teachers' Domain is FREE and allows you to: View as many resources as you like Save, sort, and share resources using My Folders and My Groups Download resources to your desktop See standards correlations for your state Register Now For more information: Learn about our online Professional Development Courses, or review our Privacy Policy. Teachers' Domain is transitioning to PBS LearningMedia, so to access all of the Teachers' Domain features and muchg more, you will need to register on PBS LearningMedia
Now, a team led by geobiologists at the California Institute of Technology (Caltech) has found evidence of a precursor photosystem involving manganese that predates cyanobacteria, the first group of organisms to release oxygen into the environment via photosynthesis. The team also plans to investigate a set of rocks from western Australia that are similar in age to the samples used in the current study and may also contain beds of manganese
What does chlorophyll do in photosynthesis in plants? - Yahoo! Answers India
7 years ago Report Abuse by Don Member since: 19 December 2006 Total points: 1,196 (Level 3) Add Contact Block It absorbs the sunlight and help plant to spread food in leaves 7 years ago Report Abuse by VISU Member since: 05 December 2006 Total points: 1,907 (Level 3) Add Contact Block Chlorophyll is a green photosynthetic pigment found in most plants, algae, and cyanobacteria. When a leaf was tested using iodine, only the green areas were shown as positive for starch, meaning that photosynthesis will not occur without chlorophyll
Why does combining hydrogen and oxygen typically produce water rather than hydrogen peroxide?: Scientific American
When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. Writing a half-reaction for oxygen reduction is more complicated, since oxygen can be reduced by either one, two or four electrons, as shown by the square redox scheme to the right, below
Water from the roots is brought to the leaf by the vascular tissues called xylem, while the carbohydrates made by the leaf are distributed to the rest of the plant by the vascular tissue called phloem. The carotenoids are usually masked by the green color of chlorophyll, but in temperate environments they can be seen as the bright reds and yellows of autumn after the chlorophyll in the leaves has broken down
Photosynthesis, Energy, and Life - Photosynthesis keeps life going.
Green plants, algae, and certain kinds of bacteria, can all make food for themselves from sunlight, carbon dioxide, and water (bacteria can use some other things to make food too, but we won't go there). Living organisms that can make their own food this way are called autotrophs, or licensed practitioners of autotrophy (just kidding, they don't need a license)
photosynthesis - definition of photosynthesis by the Free Online Dictionary, Thesaurus and Encyclopedia.
See Note at transpiration.A Closer Look Almost all life on Earth depends on food made by organisms that can perform photosynthesis, such as green plants, algae, and cyanobacteria. The carotenoids are usually masked by the green color of chlorophyll, but in temperate environments they can be seen as the bright reds and yellows of autumn after the chlorophyll in the leaves has broken down
What related function do they have in plants? they dissipate excessive light energy Which of the following statements best represents the relationships between the light reactions and the Calvin cycle? the light reactions provide ATP and NADPH to the calvin cycle, and the cycle returns ADP, Pi, and NADP+ to the light reactions Where do the enzymatic reactions of the Calvin cycle take place? stroma of the chloroplast What is the primary function of the Calvin cycle? synthesize simple sugars from carbon dioxide In the carbon fixation phase of the Calvin cycle, Rubisco attaches a molecule of carbon dioxide to a molecule containing five carbons. Where did the extra ATP molecules come from? cyclic electron flow Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma
io9 - We come from the future.
Code, which states federal works are not subject to copyright protection, Berkeley biologist Michael Eisen decided to make them freely available on his blog. According to reports from Arizona's Banner Poison Control Center, two recently documented cases of the drug's use are believed to be the first in America
Did you know that the largest suppliers of oxygen in the whole world are tiny plants known as photoplankton? They are found in the oceans and are really important to giving us the oxygen needed to keep life going on our planet. If you would like to see an actual photograph of a chloroplast viewed through the lens of an electron microscope, visit the Nanoworld Image Gallery (you'll need to register in order to view the gallery)
Measuring the Rate of Photosynthesis with the Floating
Ivy seems to provide very consistent results.Many different plant leaves work for this lab.My classes have found that in the spring, Pokeweed may be the best choice. EL Toolkit Home The Floating Leaf Disk Assay for Investigating Photosynthesis (A resource page) Brad Williamson Introduction: Trying to find a good, quantitative procedure that students can use for exploring photosynthesis is a challenge
They are also limted geometrically for ATP production because their ATPase is found at the cell membrane and not in a folded inner mitochondrial membrane. The cold slowed their biochemistry down, allow for better electron flow in their bodies to replenish them, while the environment was in chaos and then got them through, to see a return to the normal Schumann resonance, light and dark signals to control the cell cycle once again
Oxygen: The Molecule that Made the World (Popular Science): Nick Lane: 9780198607830: Amazon.com: Books
http://www.amazon.com/Oxygen-Molecule-World-Popular-Science/dp/0198607830 Competition: lowTo join, select "Yes, I want FREE Two-Day Shipping with Amazon Prime" above the Add to Cart button and confirm your Amazon Prime free trial sign-up during checkout. Drawing on this grand evolutionary canvas, Oxygen offers fresh perspectives on our own lives and deaths, explaining modern killer diseases, why we age, and what we can do about it
Whats the word equation photosynthesis? - Yahoo! Answers
The cells in the interior tissues of a leaf, called the mesophyll, can contain between 450,000 and 800,000 chloroplasts for every square millimeter of leaf. Very much like plants, algae have chloroplasts and chlorophyll, but various accessory pigments are present in some algae such as phycocyanin, carotenes and xanthophylls in green algae and phycoerythrin in red algae (rhodophytes), resulting in a wide variety of colors
This is because during this process, the pigment absorb the light and the green tissue of the plant makes glucose.Plants always do respiration as the humans and animals,the plant can d both jobs in the day but in the dark it only can give out CO2
'Major discovery' from MIT primed to unleash solar revolution - MIT News Office
It's so easy to implement," he said.'Giant leap' for clean energySunlight has the greatest potential of any power source to solve the world's energy problems, said Nocera. But the next step is carbon sequestration - like the plants do, they add carbon dioxide to the hydrogen to form more stable organic compounds that can be saved in greater quantities than is used - just like the days of the dinosaurs
Photosynthesis - definition from Biology-Online.org
Please contribute to this project, if you have more information about this term feel free to edit this page Results from our forum Effect Of carbon dioxide on rate of photosynthesis When the concentration of CO2 is low the rate of photosynthesis is also low. It means photosynthesis is a process in which carbon dioxide (CO2), water (H2O) and light energy are utilized to synthesize an energy-rich carbohydrate like glucose (C6H12O6) and to produce oxygen (O2) as a by-product
Algae Fuel In the search for alternatives to gasoline, are algae the answer? From Pond Scum to Power In this animated primer, learn why algae and other plants make oil, and how algae oil gets converted to biodiesel. Experts Debate Dinosaur Stampede Dinosaur prints in an ancient Australian fossil bed stir a modern debate; were they stampeding, or just out for a swim? Clothing from Slime? Super-strong hagfish slime might become the fabric of the future
I am not sure what is the photosynthetic oxygen production rate per gram biomass of cyanobacteria but it seems unlikely that its the sole catalyst for oxygenesis. Objectively there are a couple of things that make me wonder, how long have we observed and recorded global temperatures and population counts reliably? Can we make statements about Nature that are romantic when really it is our butts that are headed to an extinction event? I mean, perhaps it is our Nature to be the nail in the coffin for our mammalian age--so to speak
The capture of carbon dioxide by PEP is mediated by the enzyme PEP carboxylase, which has a stronger affinity for carbon dioxide than does RuBP carboxylase When carbon dioxide levels decline below the threshold for RuBP carboxylase, RuBP is catalyzed with oxygen instead of carbon dioxide. Many Prokaryotes have only one photosystem, Photosystem II (so numbered because, while it was most likely the first to evolve, it was the second one discovered)
Oxygen - Wikipedia, the free encyclopedia
At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O 2. Uses of elemental oxygen include the production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy and life support systems in aircraft, submarines, spaceflight and diving
Photosynthesis - Wikipedia, the free encyclopedia
Melvin Calvin and Andrew Benson, along with James Bassham, elucidated the path of carbon assimilation (the photosynthetic carbon reduction cycle) in plants. Z scheme The "Z scheme" In plants, light-dependent reactions occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH
Where does the oxygen come from in photosynthesis? - Yahoo! Answers
(I left out some intermediary steps.) But overall all of the oxygen given off is from H2O O2 is then released through the stomata One of the earliest photosynthesis experiments proved this. Where does THE REST of the oxygen come from? 6 years ago by ? Member since: November 12, 2007 Total points: 3,943 (Level 4) Add Contact Block Best Answer - Chosen by Asker the 6O2 is released during the light-Dependant reactions it comes from the initial 12H20
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