Sunday, August 22

What happens if we remove oxygen from a plant?
As plants respire aerobically , which is a form of respiration which requires oxygen , when oxygen is removed ,it may have to respire anaerobically to provide energy needed for its activities. However, while this may provide the plant with energy, it does not produce Carbon Dioxide(CO2) that is needed for photosynthesis. Without photosynthesis , the plant will not be able to produce food(glucose) , and it will eventually die. Other than that , the process of anaerobic respiration produces the toxic ethanol , in which excess of it may kill the plant as well.
from KKXRDHX


Disagree: Due to the fact that plants needs carbon dioxide,chances of anaerobic respiration is 0% as anaerobic respiration does not give much energy and the plants do not need much energy
Wilber

Disagree: "it does not produce CO2 that is needed for photosynthesis"

eh, I thought they did? This is the equation for ANAEROBIC respiration >
Glucose -> Ethanol + Carbon Dioxide + Energy
aka
C6H12O6 -> 2C2H5OH + 2CO2 + Energy
Carbon Dioxide is produced what .. Besides, the carbon dioxide can be obtained from other means like from the air, its not necessarily a must for the CO2 to be produced by the plant.
Glenn

Other blahs/weird facts :S
When an organism, such as yeast, runs out of oxygen, it produces ethanol instead of water
When human muscles run out of oxygen, they produce lactic acid instead of water.

Ethanol and lactic acid are poisonous to yeast and humans, respectively, which is why anaerobic respiration cannot continue indefinitely in either organism.

QUESTION> So, is lactic acid harmful for plants ?
find out in 2 days ..
Posted By Glenn

11 comments:

  1. Plants also uses anaerobic respiration? So soes it still cause muscle pain?

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  3. Shi Ying to Lek Chu, Jeslyn, Ibrahim, Edsel, QianYi. 2E1:
    if i didnt understand the website's article wrongly, it says that lactic acid helps plant to grow.

    http://www.springerlink.com/content/x6233v62l45g5q27/

    if im wrong, PLEASE CORRECT ME.

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  4. TO lekchu,jeslyn,ibrahim,edsel,qianyi:

    hahs. yes plants also respire anaeobically but they do not have muscle pain.

    Why? Coz they don't have muscles. Remember that the plant stays upright not coz of "muscles" but because of .. [let you guess]
    l_g_ _ n.

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  5. haha.. me me~!.. i know... lignin. XDD
    but i have a qn, the lactic acid in our body causes muscle cramp. so what does lactic acid do inside plants?
    according to Ariff, the lactic acid stays in muscles and cause cramp. after we excercise, our respiration go back to aerobic, the oxygen we take in helps to remove the lactic acid. so how about plants?
    [if im wrong, Ariff please comment.><]

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  6. hahas. sorry but i think I can't answer tht question, ive been trying to ask UncleGoogle but he isn't helping me! My sister bio textbook also has nothing about lactic acid affecting plants.

    All I can say now is that lactic acid does help in a way to accelerate the rate of decomposition is soil of plants.

    And by the way, what you said is correcto!

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  7. Well, plants actually undergo ethanol fermentation. Ethanol is dangerous in large amounts as they are solvents of chlorophyll, proteins and many more. Significantly losing both of the mentioned would kill them spontaneously.

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  8. lactic acid bacteria produce lactic acid, usually from sugars or other carbohydrates. Lactic acid is an important byproduct because it can act as a strong fertilizer, kills harmful microorganisms, increases rapid decomposition of organic matter, and split organic matter into simpler substances without harmful outcomes.

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  10. @ TongChen, Glenn, Rena, ShuQi, Wilber:

    ^^ thnks. maybe i'll ask teacher someday.... [if i didnt forget...]

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  11. @ Ibrahim: do you mean that lactic acid is good? or harmful to our body? since you said tht it kills harmful microorganisms? n if lactic acid is not harmful to our body, then u said tht its increases rapid decomposition of organic matter, so does it decompose our body too?? 0.0

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