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  • Biology-Online • View topic - Stomata remain closed at night then respiration
    27 am Location New Zealand Website Wed Nov 05 2014 9 35 pm Good question CO2 can still diffuse out of plant tissue when stomata are closed at night plus plants can reduce their metabolism to reduce the rate of respiration during the night Reply with quote JackBean JackBean Posts 5694 Joined Mon Sep 14 2009 7 12 pm Sun Nov 09 2014 9 16 am 1 They do not need to respire during night as there is no light i e no photosynthesis 2 see CAM plants http en wikipedia org wiki Crassulace metabolism Reply with quote BasicBiology BasicBiology Posts 26 Joined Wed Jul 30 2014 2 27 am Location New Zealand Website Mon Nov 10 2014 9 13 am I m sorry but plants still respire during the night Their cells are still doing things other than photosynthesizing that require energy Reply with quote Darby Darby Posts 1274 Joined Thu Mar 02 2006 5 29 pm Location New York USA Fri Nov 21 2014 2 07 pm What makes you think that the stomates are closed throughout the night They may not be open throughout but they don t need to be any more than your mouth has

    Original URL path: http://www.biology-online.org/biology-forum/about39817.html (2016-02-17)
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  • Biology-Online • View topic - Functional intricacies of the thalamus
    know how information is filtered or filtered out exactly Is there a summation or what are the factors that determine whether stimuli get through to the cortex or not How does it work Any info or relevant links literature would be helpful thank you Reply with quote basit345 basit345 Posts 1 Joined Sat Nov 15 2014 5 35 pm Sat Nov 15 2014 5 38 pm hello sir i want

    Original URL path: http://www.biology-online.org/biology-forum/about29341.html (2016-02-17)
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  • Biology-Online • View topic - Deproteinizing plasma?
    Mon Sep 14 2009 7 12 pm Tue Jan 19 2010 12 38 pm He s talking about plasma not plasma membrane Sorry I don t get what you mean by for glucose Reply with quote ntb103 ntb103 Posts 4 Joined Mon Jan 18 2010 5 44 pm Re Deproteinizing plasma Tue Jan 19 2010 2 15 pm Yes blood plasma I need to infuse radiolabelled glucose in vivo and measure hepatic glucose production I am just not sure the best way to deproteinize the blood to get the infused glucose vs blood glucose values Reply with quote JackBean JackBean Posts 5694 Joined Mon Sep 14 2009 7 12 pm Tue Jan 19 2010 2 40 pm What scale do you need How many samples Do you need it online What about to try desalting column of gel filtration EDIT or you can try precipitation either by ammonium sulphate organic solution or probably most appropriate for you by heat Reply with quote ntb103 ntb103 Posts 4 Joined Mon Jan 18 2010 5 44 pm Re Deproteinizing plasma Tue Jan 19 2010 5 24 pm Working with 10 microL of plasma per sample and about 10 samples per run I am not sure what you mean by online Reply with quote JackBean JackBean Posts 5694 Joined Mon Sep 14 2009 7 12 pm Wed Jan 20 2010 4 03 pm By online I meant something like taking blood from someone measure and probably give back Well with 10 ul you can use some spin filter or the precipitation Reply with quote bdastiarraga bdastiarraga Posts 1 Joined Wed Nov 23 2011 2 25 pm Wed Nov 23 2011 2 30 pm have you found the protocol for blood glucose Reply with quote ChristopherC4rm34n ChristopherC4rm34n Posts 1 Joined Tue Sep 09 2014 6

    Original URL path: http://www.biology-online.org/biology-forum/about17855.html (2016-02-17)
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  • Biology-Online • View topic - sugar consumption and weight gain
    sweeteners for dieting Sugar converted into glucose and fructose by digestive system and they enter into the glycolysis same as in the case of other carbohydrates eg starch Why diabetes people avoiding table sugar Eating table sugar is same as eating starchy food they all have common end will enter into glycolysis pathway moreover table sugar has low glycemic index than some commonly used foods Table sugar doesn t contain any other nutrients junk but we consume only little quantity compared to other food so it doesn t matter much Reply with quote boron boron Posts 17 Joined Wed Jan 04 2012 10 14 am Re sugar consumption and weight gain Sat Sep 06 2014 2 02 pm Sugar stimulates weight gain as much as other carbohydrates or other macronutrients fats and proteins It s about calorie intake not sugars The point is that sugary foods are usually calorie dense One chocolate bar 100 grams or cake can have over 500 Calories By drinking soda or fruit juices you also consume a lot of sugar It s not just table sugar you add to foods it s sugar in any sugary food http www nutrientsreview com carbs sugars html Sugars

    Original URL path: http://www.biology-online.org/biology-forum/about40563.html (2016-02-17)
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  • Biology-Online • View topic - Is there any difference between different fertilizers?
    Jun 08 2014 7 58 pm Is there any difference between different fertilizers Mon Aug 04 2014 3 49 pm Organic and chemical fertilizer ultimately providing the same elements i e nitrogen potassium phosphorus and other macro and micro nutrients to the plants There is no difference in atomic structure of elements from both sources For example whether nitrogen from organic or chemical fertilizer contains nitrogen atoms with same number of protons neutrons and electrons I think food produced by using organic and chemical fertilizer is almost same if we avoid the usage of harmful pesticides Only using organic fertilizer we cannot achieve higher yields Food production using chemical fertilizer is cheap compared to using organic fertilizer Reply with quote josem josem Posts 36 Joined Sun Jun 08 2014 7 58 pm Sat Aug 09 2014 5 21 pm Same thing can be consider in case of baby foods which may contain artificial flavors minerals and vitamins may be chemically synthesized But all have chemically similar to its natural counterparts By the way baby food may contains preservatives which may harmful Post a reply Jump to Select a forum General Biology General Discussion Cell Biology Molecular Biology Zoology Discussion Evolution

    Original URL path: http://www.biology-online.org/biology-forum/about40229.html (2016-02-17)
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  • Biology-Online • View topic - drink water, orange juice or Cola before eating?
    will raise the pH of gastric juice thus lowering the optimality of pepsin enzyme Beside by the raised pH it s also possible to have some pathogenic bacteria which don t killed by gastric juice If we don t drink before eating it will be hard for us to swallow the food it s too dry in esophagus Second how about cola well based of the cola s pH it s possible for us to get our pH lowered to 1 5 2 but remember that the thing that makes cola become acidic is carbonic acid H2CO3 which will get dissociated into H and bicarbonate ions which then will get dissociated again into CO2 I think that by excessive amount of CO2 is not good for our somach especially before eating because there ll be a pressure difference which indirectly affect the diaphragm and causing hiccups lol But I don t think that the pH of cola is about 2 wow it s about 100 times more acidic compared to vinegar Oh any info about the sucralose chlorine derivative from sucrose which is used in cola mrgreen Reply with quote MrMistery MrMistery Posts 6832 Joined Thu Mar 03 2005 10 18 pm Location Romania small and unimportant country Wed Aug 23 2006 6 22 pm I was thinking about what you said victor When i measured the pH however and i got 2 i said Hey even if i got it wrong and it is about 3 it is still much more acidic than mineral water which has a similar CO2 concentration according to my tongue CO2 detector After some research i realised that Cola contains H3PO4 which actually gives it s incredible acidic pH So i did an experiment shaked all the CO2 out of the Cola and then measured the pH Still somewhere between 2 and 3 So the H2CO3 has only a minor contribution About the fact that the esophagus is too dry if you don t drink some water Well the esophagus mucose membrane secrets mucus But it depends on what you eat If you eat raw flower yeah you should drink some water with it d Reply with quote loveangel loveangel Posts 1117 Joined Wed Jul 05 2006 11 52 am Location Philippines Website Fri Aug 25 2006 10 32 am ahhh now i know ty Reply with quote mcar mcar Posts 493 Joined Fri May 27 2005 8 58 am Location Pilipinas a k a Three Stars and a Sun 300 000 sq Km Fri Mar 06 2009 7 59 am I didn t see he asked for the aphrodisiac drug When I read the question I immediately thought that too much water may increase the gastric volume thus making digestion slower but then I realized what if the situation is depending on our health conditions what if certain people with metabolic alklosis or acidosis conditions have to be watched for the type pf food that they eat since it might alter also their

    Original URL path: http://www.biology-online.org/biology-forum/about7511.html (2016-02-17)
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  • Biology-Online • View topic - drink water, orange juice or Cola before eating?
    stomach has to make more mucus and water into the stomach which can be a major problem for those that suffer hypertension and other blood volume conditions The stomach cannot mix properly if it does not have the fluidity to mix problem You can try this by eating a very heavy fatty cake where the water will not mix with the fat trust me it doesn t feel good The enzymes in the intestine have to find their destination in the food in order to breakdown the food that you have consumed If you have a nice dry stomach where everything is really super viscous your enzymes will not find what they are looking for as easily and will result in improper digestion This can result in digestive problems further down the line Now there is some validity to not drinking as much water because it might slow down stomach emptying and as a result keep you full longer This is advantageous in those that want to lose weight by doing less snacking The moral of this story drink water with your meal or any other beverage in moderation not too much and not too little because your body is extremely adaptive Unless you have instructions from your physician or evidence to say that you have an acid secretion problem don t worry too much and enjoy your meal Like others have said try eating without a drink and its quite hard Reply with quote JackBean JackBean Posts 5694 Joined Mon Sep 14 2009 7 12 pm Mon Nov 07 2011 9 29 am not all enzymes are proteins e g the ribozyme is RNA trypsin is not cleaved by HCl since it is not in stomach why should be the acid neutralized Where does the bicarbonate come from Reply with quote MamaWrites MamaWrites Posts 1 Joined Sat Nov 30 2013 4 29 pm Re drink water orange juice or Cola before eating Sat Nov 30 2013 8 40 pm While I see this thread is very old I came across it while researching something about diet and pH I agree that drinking while eating can adversely affect the digestive process Additionally drinking carbonated beverages brings other factors into digestion When the carbon dioxide enters the stomach the pyloric sphincter which is closed while the first stages of digestion occur in the stomach opens in response to the increased pressure from the CO2 This causes the contents of the stomach to empty into the colon in the less digested form and also the CO2 As most people know CO2 is a waste product which the lungs expel in exchange for the much needed oxygen supply into our body and ultimately our cells This helps keep our blood gases balanced and the premature emptying of CO2 in this manner causes it to directly enter the blood stream adding a burden to the body s natural detoxification process In short we are drinking a substance infused with something our body eliminates as

    Original URL path: http://www.biology-online.org/biology-forum/about7511-12.html (2016-02-17)
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  • Biology-Online • View topic - Prove plants respire during day time
    quote kumar985 kumar985 Posts 45 Joined Thu Jul 19 2012 4 05 pm Location India Prove plants respire during day time Mon Jun 02 2014 1 20 pm Plants respire all the time Then how to prove plants respire during day time Post a reply Jump to Select a forum General Biology General Discussion Cell Biology Molecular Biology Zoology Discussion Evolution Microbiology Bioinformatics Human Biology Botany Discussion Genetics Physiology Ecology

    Original URL path: http://www.biology-online.org/biology-forum/about39816.html (2016-02-17)
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