What is the difference between photosynthesis and respiration?
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To put it simply, they're opposites.  Respiration consumes glucose and oxygen and releases energy and carbon dioxide.  Photosynthesis uses sunlight (i.e. energy) and consumes carbon dioxide and produces oxygen and glucose (i.e. stored energy).  In other words, photosynthesis is the process of storing energy and respiration is the process of releasing that energy.
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1. respiration is for animals, and phtosynthesis is for vegetals, bacteria and algae.\n\n2. We (animals) use respiration because our cells need a process called gas exchange ( we take Oxygen from the air and exchange it in our cells for carbon dioxide)\n\n3. This is possible for us because our cells have organs called mitocondria, while vegetal cells have chloroplasts.\n\n4.Photosynthesis is an important biochemical process in which plants, algae, and some bacteria harness the energy of sunlight to produce food. Ultimately, nearly all living things depend on energy produced from photosynthesis for their nourishment, making it vital to life on Earth. It is also responsible for producing the oxygen that makes up a large portion of the Earth's atmosphere. Organisms that produce energy through photosynthesis are called photoautotrophs. Half of all photosynthesis comes not from plants, but from bacteria and algae.\n\nResìration involves the use of developed organs such as lungs.\n\n5. Photosynthesis produces energy from sun light, while\nrespiration produces energy from the Oxygen present in pur atmospheric air.
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B.\n\nCellular respiration uses Oxygen and releases CO2, and at Nighttime, Photosynthesis cannot occur(since there is a lack of light) and therefore cannot convert CO2 to O2, hence lowering the concentration
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In photosynthesis, plants convert light into chemical energy. This energy is thus used to turn carbon dioxide into carbohydrate releasing oxygen as a byproduct. That is why many plans to fix global warming such as the Kyoto Protocol aim to increase the number of forested areas through so-called carbon sinks.
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Both of these organelles do similar processes, just in different directions. Mitochondria are respiratory structures the consume chemical energy. Chloroplasts create high energy molecules for respiration. they work together. It is without question that the chemical energy you consume today was created by photosynthetic organism using chloroplasts. That means the food you eat is a product of photosynthesis and light from the sun. We create CO2 for the process of photosynthesis. We are higher in the food chain so we don't need chloroplasts to make energy. We just eat other organisms.
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The process of photosynthesis consists of two sets of chemical reactions called the light reaction and the dark reaction. The light reaction takes place in the grana.  The dark reaction takes place in the stroma.\n\nIn the light reaction, electrons in chlorophyll molecules are excited. In other words the energy photons is used to activate electrons. The energy in excited electrons is used to split water molecules: this is photolysis. Oxygen is produced as a waste product and hydrogen is used to reduce NADP+   to form NADPH. The process involves non-cyclic electron transfer producing both NADPH and ATP and cyclic electron transfer producing just ATP.\n\nThe dark reaction requires energy from both NADPH and ATP. In this part of photosynthesis carbon dioxide is fixed. Energy from NADPH and ATP is used to convert glucose (a six carbon molecule) into ribulose diphosphate (a five carbon sugar molecule). Ribulose diphosphate can combine with carbon dioxide eventually forming glucose
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Photosynthesis uses the energy of light to make the sugar, glucose. A simple general equation for photosynthesis follows...\n\n      6 CO2 + 12 H2O  light → C6H12O6 + 6 O2 + 6 H2O\nCarbon Dioxide+Water+Light energy → Glucose+Oxygen+Water\n\nPhotosynthesis occurs in two stages. In the first phase light-dependent reactions or photosynthetic reactions (also called the Light reactions) capture the energy of light and use it to make high-energy molecules. During the second phase, the light-independent reactions (also called the Calvin-Benson Cycle, and formerly known as the Dark Reactions) use the high-energy molecules to capture carbon dioxide (CO2) and make the precursors of glucose.\n\nIn the light-dependent reactions the pigment chlorophyll absorbs light and loses an electron that travels down an electron transport chain producing the high energy molecules NADPH and ATP. The chlorophyll molecule regains its electron by taking one from water, a process that releases oxygen gas.\n\nIn the Light-independent or dark reactions the enzyme RuBisCO captures CO2 from the atmosphere and in a complex process called the Calvin-Benson cycle releases 3-carbon sugars which are later combined to form glucose.\n\nLight to chemical energy---\nThe light energy is converted to chemical energy using the light-dependent reactions. The products of the light dependent reactions are ATP from photophosphorylation and NADPH from photoreduction. Both are then utilized as an energy source for the Light independent reactions.\n\nZ scheme---\nIn plants, light dependent reactions occur in the thylakoid membranes of the chloroplasts and use light energy to synthesize ATP and NADPH. The light dependent reaction has two forms; cyclic and non-cyclic reaction. In the non-cyclic reaction, the photons are captured in the light-harvesting antenna complexes of photosystem II by chlorophyll and other accessory pigments (see diagram at right). When a chlorophyll molecule at the core of the photosystem II reaction center obtains sufficient excitation energy from the adjacent antenna pigments, an electron is transferred to the primary electron-acceptor molecule, Pheophytin, through a process called Photoinduced charge separation. These electrons are shuttled through an electron transport chain, the so called Z-scheme shown in the diagram, that initially functions to generate a chemiosmotic potential across the membrane. An ATP synthase enzyme uses the chemiosmotic potential to make ATP during photophosphorylation while NADPH is a product of the terminal redox reaction in the Z-scheme. The electron enters the Photosystem I molecule. The electron is emitted due to the light absorbed by the photosystem. A second electron carrier accepts the electron, which again is passed down lowering energies of electron acceptors. The energy created by the electron acceptors is used to move hydrogen ions across the thylakoid membrane into the lumen. The electron is used to reduce the co-enzyme NADH, which has functions in the light-independent reaction. The cyclic reaction is similar to that of the non-cyclic, but differs in the form that it only generates ATP and no reduced NADP (NADPH) is created. The cyclic reaction takes place only at photosystem I. Once the electron is displaced from the photosystem, the electron is passed down the electron acceptor molecules and returns back to photosystem I, from where si was emitted; hence the name cyclic reaction.\n\nWater photolysis---\nThe NADPH is the main reducing agent in chloroplasts, providing a source of energetic electrons to other reactions. Its production leaves chlorophyll with a deficit of electrons (oxidized), which must be obtained from some other reducing agent. The excited electrons lost from chlorophyll in photosystem I are replaced from the electron transport chain by plastocyanin. However, since photosystem II includes the first steps of the Z-scheme, an external source of electrons is required to reduce its oxidized chlor
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Photosynthesis in plants occurs in the leaves and in green stems within the specialized cell structures called chloroplasts. . . For more details please consult Encarta Encyclopedia--photosynthesis of the leaf--good luck.
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Cellular respiration : carbon dioxide
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http://en.wikipedia.org/wiki/Fermentation\n\nhttp://en.wikipedia.org/wiki/Photosynthesis\n\nhttp://en.wikipedia.org/wiki/Respiration\n\nIt seems most closely related to respiration if you look at the third link.
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Internal Respiration is the exchange of gases between tissues and the blood cells. External Respiration is the exchange of gases between the blood cells and the lungs.\n\nIf you want more information, you can do a quick search on the net, or email me and I'll dig out my old college books and notes.\n\nHope that helps.
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Plants use the energy of sunlight to grow using a process call photosynthesis (light - putting together) taking in carbon dioxide from the air and giving up oxygen.  At night the light of the moon (reflection of sunlight) is too weak to support photosynthesis and the plant actually uses oxygen rather than make it.
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photoautotrophs (plants) reduce carbon, every other organism oxidizes it.  without photosynthesis, this world is dead.
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Okay... basically photosynthesis has two different components, the light reaction and the dark reaction. The light reaction takes place in sunlight and involves the P680 and P700 photosystems. The light reaction also has two parts: cyclic photophosphorylation and non-cyclic photophosphorylation. Cyclic photophosphorylation produces energy needed for the reaction. Non-cyclic photophosphorylation produces NADPH and ATP for the dark reaction. In the dark reaction (or Calvin cycle) the reaction goes through a cycle and forms glucose with NADP+ and ADP being recycled back to the light reaction.
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the equations of cellular respiration and photosynthesis are related because they are the converses of each other. cellular respiration is oxygen and glucose equaling carbon dioxide, water and energy. photosynthesis is when energy, water, and carbon dioxide equal oxygen and glucose. photosynthesis needs cellular respiration and cellular respiration needs photosynthesis.
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simply put: saccarides and oxygen.\nbut there are 2 types of photosynthesis and one works during the day and the other at night and its really complicated. also, one is done in a liquid suspension and the other in these disc-like structures in the chloroplast.
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one of the characteristics of living things is respiration, which is the breakdown of glucose to release energy, so the same thing applies for plants...because plants do respire!!! They need energy for other physiological processes like photosynthesis or growth or reproduction etc..