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Plants make their own food thru the process of photosynthesis
Carbon dioxide and water are inorganic chemicals, whereas glucose is an organic chemical. Plants need energy to convert carbon dioxide and water into glucose; this energy comes from sunlight. Plants can also use artificial light providing that it contains the right frequencies (). Light energy is trapped by a green chemical called chlorophyll. In photosynthesis, light energy is converted into chemical energy. When animals and plants respire, the chemical energy in glucose can be converted into other forms of e.g. kinetic energy.
Without photosynthesis, not only would replenishment of thefundamental food supply halt but the Earth would eventually becomedevoid of oxygen.Just as the organic molecules in the bodies of living organismscontain energy converted by photosynthesis from the energy of theSun, so do the molecules of fossil fuels.
C4 photosynthesis: how some plants avoid photorespiration
The process inphotosynthetic protists and cyanophytes resembles that in greenplants; it differs in the photosynthetic bacteria in that compoundsother than water serve as a reactant and oxygen is not produced.
Photosynthesis in green plants harnesses the energy of sunlight toconvert carbon dioxide, water, and minerals into organic compoundsand gaseous oxygen.In addition to the green plants, photosynthetic organisms includecertain protists (such as euglenoids and diatoms), cyanophytes(blue-green algae), and various bacteria.
Indoor Plants That Produce Oxygen | Home Guides | SF …
However, during the day, the amount of oxygen plants release as part of photosynthesis makes the amount of oxygen they consume for respiration seem negligible.
At night, when photosynthesis can’t take place, plants continue to consume oxygen but they don’t release any back into the room. Would that mean that plants really do compete with humans for oxygen?
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16/01/2018 · Indoor Plants That Produce Oxygen
All plants and animals on earth engage in a process called respiration. Respiration combines oxygen and the food created during photosynthesis to produce usable energy.
how do plants produce oxygen during photosynthesis
Allphotosynthetic organisms--with the exception of a minor group ofbacteria, the halobacteria--contain the light-absorbing pigmentchlorophyll, which plays a key role in the transfer of energy fromlight to chemical compounds.Photosynthesis is the fundamental process that maintains life onEarth.
Why do plants need oxygen ? - UCSB Science Line
The energy provided bycoal, oil, and gas comes from photosynthesis carried on by plants ofearlier times and preserved down through the ages, to be released bycombustion in modern industrial processes.
You probably already know that in photosynthesis, plants take ..
Most of the energyreleased both by the burning of fossil fuels and by the metabolism ofliving cells is given off as heat and must be replaced by thecontinued input of radiant energy from the Sun.The principal organic products of plant photosynthesis arecarbohydrates.
KS3 biology Quiz on "PLANTS and PHOTOSYNTHESIS" …
I'l bet you are wondering that because you alreadyknow that plants can make oxygen. You probablyalready know that in photosynthesis, plants takeCO2 from the air, Water(H2O) from their roots, and energy fromthe sun and make sugar(C6H12O6). Whata lot of people don't realize is that when there'slittle or no light, plants do the same thing wedo. The break down the sugar to releaseCO2, water, and energy. This requiresoxygen. The reason is pretty complex, butbasically, electrons get passed around, and oxygenhas to pick them up at the end of the process.
If you measured the amount of oxygen andCO2 dissolved in a lake, how do youthink the daytime levels would compare to thenighttime levels?
Would a plant need oxygen ifit were under lights 24 hours a day?
Photosynthesis occurs in plants and some ..
I have koi in outside fish ponds. At times during the long summer days there is an occurrence called an algae bloom where the water in the pond becomes filled with very small suspended algae. During the day there is no problem with the respiration of the koi that I have in the pond… but because the algae use up so much available oxygen during the night and do not add any O2 to the water…my koi in the very early morning hours before the sunlight starts photosynthesis of the algae run out of the amount of oxygen they need for respiration and are forced to breathe atmospheric O2 at the surface of the pond! They gasp for O2 out of the water from the atmosphere where there is enough available for them to survive. My point is in water ponds there is a semi closed environment where plants can use up so much oxygen at night that they force the fish to get their oxygen elsewhere. When days become shorter the algae bloom will naturally diminish if I wait it out and do not do massive water changes or resort to killing the floating algae with a chemical plant killer algaecide that will not kill my fish if used in the proper doses. Plants do use O2 at night and do not give off any O2 in darkness!
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