Photosynthesis | A brief introduction |
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- เผยแพร่เมื่อ 10 ก.พ. 2025
- Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.
Plants are called autotrophs because they can use energy from light to synthesize, or make, their own food source. Many people believe they are “feeding” a plant when they put it in soil, water it, or place it outside in the Sun, but none of these things are considered food. Rather, plants use sunlight, water, and the gases in the air to make glucose, which is a form of sugar that plants need to survive. This process is called photosynthesis and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
#MechanismOfPhotosynthesis
The oxygen produce in photosynthesis is more than the oxygen which is required for respiration, So some amount of oxygen is used by plants in the process of respiration and the remaining oxygen is let out to the environment from which we get oxygen for breathing. 100 like
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Sir, Chlorophyll is the green pigment, which absorbs sunlight but light energy converted into chemical energy through ATP not respiration.That helps to break H2O into two molecules Oxygen and Hydrogen; oxygen plant release in atmosphere for us but, Hydrogen react with carbon dioxide to form Carbohydrate which is generally glucose.😊😊😊😊😊😊
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Sir, Oxygen that we inhale is the product in the process of photosynthesis which is excreted from plants through stomata. Oxygen which plants use in the process of respiration comes from the atmosphere, as respirtion occurs mainly in the absence of light (at night) hence plants inhale Oxygen during night for their vital requirement and exhale carbon dioxide.
Ap ka andar stomata kadar sa aya stomata, to plants,ma hota ha
No bahi stomata ka zarya hama excreate product nahi data
Stomata ka zarya plant transpiration karta ha
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Sir I think and to Ur question during day plant is doing photosynthesis so no oxyden is required but during night it do respiration and it comes from surrounding .. the same oxgen released by plants ... That's why we feel suffocated during at night near trees
Teaching methods is well😊
plants do not use all the food they make during photosynthesis because most of the food they make is stored in plant branches and barks as they grow. so the oxygen released by the plant during photosynthesis is more than the oxygen used in respiration by the plants. Therefore the remaining oxygen is used by us.
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Sir The answer for your question is that the oxygen come from H2O
Amazing lecture 🤠
Sir the answer of your question is
Oxygen is the byproduct of photosynthesis ,where plants do respiration at night and day both so plants use their oxygen in reapiration and the byproduct where the oxygen remain they relase in environent for us 70 to 80%of oxygen they release in atmosphere for us
the oxygen we breathe primarily comes from the process of photosynthesis in plants. While plants do use some of the oxygen they produce during respiration, the net effect is that they release more oxygen into the atmosphere through photosynthesis than they consume during respiration. This oxygen is what humans and other animals rely on for respiration.
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Sir during photosynthesis 6 oxygen remove where a , limited amount of oxygen is used during dark reaction where , dark reaction use the production of Light reaction 12 NADPH2+18ATP+6 CO2 from air and produced Glucose and Water where water remove in Air.
sir in this reaction u wrote 6 water molecules while the correct one is 12 water molecules that act as reactant in photosynthesis
Question: if plants utilise it's o2 in respiration then from where we get o2 to breath ?
Answer: Plant release more oxygen into the atmosphere than they use.
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Sir
As Your question was that if plants use their oxygen (produced during photosynthesis) in respiration then from where we get oxygen
And
Answer for the question is that the rate of respiration is low at daytime as compared to photosynthesis so plants produces more oxygen than they use and the excessive amount is released in atmosphere
In plants chlorophyll absorbs carbon dioxide from the atmosphere and water from the soil in the presence of sun light and converted into sugar and oxygen . plants use sugar in from of food and oxygen is released in the atmosphere which is inhaled by living organisms
The oxygen released in photosynthesis is partially(20-30%) used in respiration and remaining are released in environment. But it depends on some factors such as type of plant, some plants use more than 50% of the oxygen released from photosynthesis
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Sir ap ne apney question ka answer apni hi video me de dya Jo hum oxygen inhale karty he basically wo photosynthesis ke process me H2O ke break honey se ata he
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Plants do use some of the oxygen they produce for their own respiration, but they generate much more oxygen than they consume. During photosynthesis, plants take in carbon dioxide (CO₂) and water (H₂O) and, using sunlight, produce glucose (C₆H₁₂O₆) and release oxygen (O₂) as a byproduct. The oxygen released into the atmosphere during photosynthesis far exceeds what plants need for respiration, which is why we have enough oxygen to breathe.
Additionally, other photosynthetic organisms like algae and cyanobacteria also contribute significantly to atmospheric oxygen, especially in oceans, which produce around 50-80% of the Earth's oxygen supply. So, the oxygen plants release during the day and that of other photosynthetic organisms sustain the atmospheric O₂ levels necessary for life on Earth.
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Sir we inhale oxygen in day time and respiration s perform in night so we absorb or inhale oxygen easily
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Your answer is ....
During photosynthesis plants make oxygen more than all organisms inhale it. e.g= if plants provide 100 mole we just use 50 mole among them. So the rest of oxygen is stored in atmosphere which plants use for respiration 💯
Answer of your question is that ...k saari oxygen respiration me use nh hoti excess of oxygen produce hoti hai to kch respiration me use ho jaye gi or baki hmari breathing k liye reh jaye gi
Nhi photosynthesis k process main jo oxygen hoti ha wo breathing k liya use ni hoti soil say jo water plant absorb kerty hain on water molecules main jo oxygen hoti ha basically wo plant ralease kerta ha or hum wohi breathing k liya use kerty hain Ven Neil ki hypothesis say pta chlta ha yay … iski hypothesis base base kerti ha photosynthesis in bacteria per
photosynthesis k process main jo oxygen hoti ha wo breathing k liya use ni hoti soil say jo water plant absorb kerty hain on water molecules main jo oxygen hoti ha basically wo plant ralease kerta ha or hum wohi breathing k liya use kerty hain Ven Neil ki hypothesis say pta chlta ha yay … iski hypothesis base base kerti ha photosynthesis in bacteria per
The answer of the question is that during day time Oxygen is in rich amount and plants exculde oxyyen through stomata...but in night when there is no sunlight photosynthesis proscess stops so plants breaks C_H bonds of glucose..because there is limited amount of oxygen
Good
In plants chlorophyll absorbs carbon dioxide from the atmosphere and water from the soil in the presence of sun light and converted into sugar and oxygen. Plants use sugar in the form of food and they release oxygen in the atmosphere . which is inhale by living organisms
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At day time photosynthesis and respiration both occurs but rate of photosynthesis is higher than respiration O2 produced in greater amount as waste product of photosynthesis and is required in less amount for respiration and remaining amount of O2 is released through stomata pores in atmosphere from we breath
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The Photosynthesis occurs in plants in greater amount, so large amount of oxygen is produced as a by product some amount of oxygen is used for respiration while the rest is release to the outside environment. This phenomenon is different at night time as at night time as there is no photosynthesis so the plants get the oxygen from the environment.
Sir In the process of photosynthesis some oxygen released in the environment those oxygen we can inhale in the process of breathing because the plant all oxygen don't use. This is the my answer Abdul Hakeem
Sir, the rate of photosynthesis is greater than the rate of respiration, therefore o2 is in excess that is removed out
We use the excess oxygen that is released by plants after their own activities
We get oxygen from atmosphare and in rhe absence of light(night time) plant also inhal O2 from there food that is stored in the form of carbohydrates like suger or glocuse (C6H12O6) diring respiration
Thank you sir
Sir, what is dark reaction or light reaction please upload a video on this topic
Q:- If plants utilize it's O2 in respiration then from where do we get oxygen to breathe?
Ans:- Plants produce oxygen as a byproduct of photosynthesis, a process that primarily occurs during the day when sunlight is available. During photosynthesis, plants take in carbon dioxide (CO₂) and water (H₂O) and use sunlight to produce glucose (C₆H₁₂O₆) and release oxygen (O₂) into the atmosphere. This oxygen is what we and other organisms use for breathing.
Although plants also undergo respiration, where they consume oxygen and release carbon dioxide, the amount of oxygen produced during photosynthesis is far greater than the amount consumed during respiration. As a result, there is a net release of oxygen into the atmosphere, ensuring enough for other organisms to breathe.
The balance is maintained because plants are continuously photosynthesizing during the day, contributing significantly to the Earth's oxygen supply.
Sir if you say oxygen are coming from water then water molecules have oxygen 16 isotopes then remain byproduct of co² +h²0 is oxygen ¹⁸ then how ???
some of the oxygen gas which is produce in the photosynthesis is used by plants in the respiration while the rest of the oxygen gas is given to us.if this is the correct answer,plzzz reply me. i will wait.
Thank you
The answer is atmosphere also exist oxygen. As in desert there is no plants but we get oxygen.
ANSWER:
oxygen produced during light rxn of photosynthesis is partially consumed during callular respiration by plants and unconsumed oxygen is released in atmosphere
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Some oxygen are used in respiration and extra oxygen are excreted in plant and then used it other organisms
at the time of respiration we get O2 from air sir
plants form an extra amount of O2 some of the oxygen is used by plants for respiration and remaining oxygen is released in environment which is used by us for breathing.
Plant do photosynthesis in large amount and produce more oxygen and food some of the food are used by plants itself and some food is stored. The whole oxygen will be consumed by plant if they use the whole food but plants store some food and unnecessary oxygen is released. For example plant produce 3 glucose molecule and 18 oxygen. Let plant use 1 glucose and store 2 glucose. For respiration of 1 glucose 6 oxygen will be used by plant. And the remaining 12 oxygen are released by plants.
A large amount of oxygen is produce in the process of photosynthesis some Oxygen is utilize in respiration and the remaining oxygen is release to atmosphere through stomata so we use in breathing
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But during photosynthesis process the oxygen is released as by product which also goes in atmosphere so we use it at night easily
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Sir wo oxygen hum water sa lata Hain jab respiration ka douran water release hota us sa lata hain
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Sir in the day time in plants In a process called photosynthesis and night time respiration so we not use a oxygen in night time so plant required gain oxygen
Afyer utilizing the produced oxygen in required amount for their own respiration,they release the extra one(which we utilize then.)
As you ask plant use oxygen during respiration. This oxygen is a small part of oxygen released in photosynthesis.
The answer : plants perform photosynthesis so it releases enough oxygen for use of breathing for humans so in process of respiration it uses own oxygen that is extra
WO ham atmosphere sy lety hay q k oxygen srf plant hmy nahi DTA atmosphere b dety hay
Sir U say that energy come from the sun is not used directly by plant but store it in the food ..and during respiration the food break and energy is released ..but sir during photosynthesis the plant used directly energy form the sun but how..plz clear that point .
Sir,
Photosynthesis ky process mai oxygen release hoti hai or respiration ky process mai oxygen absorb hoti hai... Tu iss trha sy nature mai oxygen cycle balance rhta hai
Am I right sir?
Sir if the plant utilize their oxygen in respiration then we get oxygen from algae
the net balance of photosynthesis and respiration is 6 O2 and 2 O2 then obviously plant make very much large amount of oxygen then it uses in respiration ad there are also many sources of oxygen production 80 percent oxygen come from seaalgea phytoplankton i.e micro algae thats the reason
Plants release oxygen as a byproduct of photosynthesis, which is the process by which they convert light energy from the sun into chemical energy stored in organic molecules. During photosynthesis, plants take in carbon dioxide from the air and release oxygen. This oxygen can then be used by other organisms, including animals and humans, for respiration.
Answer :Oxygen that we inhale is the product of photosynthesis but the process of photosynthesis occurs at an increased rate than respiration...that is why the oxygen produced is enough to compensate the requirements of respiration as well as left over is released in the atmosphere....at night .. photosynthesis process doesn't occur so the oxygen requirements are full filled by atmospheric oxygen
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Sir we will get O2 from.plants
Sir one question
What is photo physiology?
Sir from water , 4 water molecules is split and 2 hydrogen is formed and 4 oxygen is formed during photosynthesis and some oxygen is used in respiration and oxygen concentration is higher than outer environment so plants exhalds oxygen through stomata and we get oxygen directly from environment and two hydrogen is used to reduced NADP to NADPH2
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Actually Plants can't use oxygen in the process of respiration 😅
So the oxygen which we breathe primarily cones from the process of photosynthesis
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Ans: Because plants produce more O2 through photosynthesis then they consume in respiration.
U r right dear❤
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if we compare the amount of oxygen that is consumed and given back .the consumption is much lesser then the oxygen that released
sir but when i asked my bio techear she said that human do contain chorophyll but you said that we we dont have charaphyll i am counfused
She is wrong humare Android chlorophyll nh hota
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Sir they are not using all oxygen. Some oxygen are also storing in atmosphere mens photosynthesis is fast process and respiration is slow processs
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