MetabolismCatabolism is never switched off doing anabolism - or reverse in any living cell. Dobel ski lift cellurlar testosterone hormones are anabolic definition wikipedia by seperating the production of the specific intermediats by intercelluler compartments, by regulating associated anabolic definition wikipedia activity and by the natural limitation of concentration in the cell metabolism. Homones does wikipeddia effect any process directly, but wille effect the anabolic definition wikipedia enzyme activity. I removed the stub tag both because this article is getting to be slightly longer than is classically considered a stub, and catabolismwhich is almost exactly the same size, does not have one. This is just flat wrong.
Anabolism - Wikipedia
Catabolism is never switched off doing anabolism - or reverse in any living cell. The cellurlar processes are controlled by seperating the production of the specific intermediats by intercelluler compartments, by regulating associated enzyme activity and by the natural limitation of concentration in the cell metabolism.
Homones does not effect any process directly, but wille effect the associated enzyme activity. I removed the stub tag both because this article is getting to be slightly longer than is classically considered a stub, and catabolism , which is almost exactly the same size, does not have one.
This is just flat wrong. Read the definitions of anabolic and catabolic. Either can occur while awake or asleep. Thank you for contributing, but we need to talk about your understanding of anabolic and catabolic. This second iteration is better but still somewhat idiosyncratic. We usually try to use scientifically accepted definitions of words so our articles on scientific topics actually correspond to what people might read in science textbooks and real research journals.
The relationship between anabolic processes and sleep is only partial, and not central to the definition.
It is possible for catabolic processes to predominate during sleep if you are starving or ill, and anabolic processes usually should predominate during the day in most healthy people. This is misleading in relationship to usual scientific usages of anabolic and catabolic. Can you cite any biochemistry or molecular biology texts or reputable sources that agree with your view? Please do some reading. What you have added has too much of a flavor of "sort-of" science, like you find in muscle magazines, alt health publications, or "spiritual" health sources.
I'd like to modify your recent additions for the purpose of accuracy but wanted to explain why. First, I like the mention of growth as involving synthesis of complex molecules, but would like to demote the phrase from the primary definitional sentence.
While a dash leaves some ambiguity as to the relationship of two phrases, an indication that the second phrase is a restatement or elaboration of the first in plainer words is a common way to understand it. While synthesis of certain complex molecules structural proteins, glycogen, fat is one of the processes of growth "an increase of size and secondarily of maturation of an organism" , growth is a larger process.
One reason we might not want to feature synthesis of complex molecules in the introductory sentence is that catabolism also involves synthesis of complex molecules -- just a different set of complex molecules. For instance, synthesis of immunoglobulins, cytokines, and catabolic hormones are examples of synthesis of complex molecules that occur during catabolic processes.
This is a minor point and perhaps you can accuse me of being nitpicky. The second point is the one related to sleep, and that is a clearer accuracy issue.
It is simply flat wrong to say that catabolism is a characteristic of the wakened state. I notice from your user contributions you have an interest in sleep. Your edit resembles the anomynomous edits I reverted with the explanation above. Let me see if I can be clearer and more persuasive. I know that in popular culture we think of sleep as a "repair period" for the day's wear and tear, but I am not sure how much research support there is for taking that literally.
Most growth hormone an anabolic hormone is secreted during sleep, but the next most common stimuli for GH are protein ingestion and exercise, while the major peak of ACTH, an archetypal catabolic hormone, also occurs during sleep. Finally, sleep does not turn off catabolic processes during starvation, infection, hormone deficiency, or illness. I think the strongest statement we can make and support with scientific references is that some anabolic processes occur during sleep.
Are you ok with this or do we need to exchange more physiological information? Also, feel free to write articles about orexin and hypocretin. I know little about orexin and less about hypocretin. All you have to do to start an article is to click on the word in red. Finally, I hate to discourage a new contributor by arguing with his first contributions, but I have the feeling I have had this half of the conversation before.
We try to keep our physiology articles in a scientific perspective and I am always open to learning or teaching. First of all, I did the anonymous edits. I am a really busy person and only have a short amount of time now and then to write. I have no desire to sound confrontational but I only have a little time for now and I'm grateful to have this dialog going. What I'm weary of is the ubiquitous non-explanations that sleep is a mystery we don't understand and that sleep is nature's way of clearing garbage out of our minds from when we're awake.
If less intelligent animals didn't sleep then that would be a reasonable supposition, but they do, and it isn't. We need to ask the right questions here - why do animals awake, and what is 'being awake'. Being awake is clearly a catabolic state. If you do too much if it, if any animal does, it kills the animal.
You cannot die from too much sleep, however, because it is an anabolic state, but by itself you starve, etc. That's why animal life, at every level, is a constant switching between the two states, until old age brings it to a halt. I have created certain understandings in my life that are the result of insights that I have had - nothing mystical or religious or spiritual at all - just creative insights. I am a graphical language architect.
I've a history of being right in a certain way about such insights. I've created software GUI paradigms that work in any culture and have been adopted worldwide. I happen to have a lot of confidence in my insights. Of course I'm limited as we all are in being able to understand new things in terms of what is known, but I just don't see sleep as a mystery - I see it as the 'default' mode of existence for all animal life, from single celled organisms to ourselves.
I see being awake as the hyperactive time when cell division procreation and ingestion take place. In the same sense that a single celled animal can't constantly be ingesting and undergoing mitosis, neither can any multi celled animal constantly be ingesting and procreating.
It would exhaust and kill in either case. I would, naturally, like to be refuted with facts to disprove my hypothesis, as your effort demonstrates, but I don't find your general argument very persuasive yet. It's important, I think, to throw something up against the wall and see if it sticks. We can learn from doing that a lot faster than we can if we are afraid of making a mess on the wall.
Let's break some eggs and see what kind of omelette we can childern GeneMosher I appreciate the response and your openness to discussion. You are either using an idiosyncratic definition of anabolism or you are simply at least partly mistaken in your understanding of it. We actually have a policy called No original research which as you might get is to discourage the introduction of novel, eccentric, and unfounded theories, no matter how clever, as if they were supported and accepted fact.
Your exposition of your "theory" about sleep appears to me to come perilously close if not exactly what the policy is designed to exclude. Your "insight" that wakefulness is automatically catabolic because prolonged sleep deprivation leads to some catabolic changes is certainly a novel hypothesis, but a logical non-sequitur. I suspect a more likely explanation is simply that sleep deprivation triggers catabolic processes by way of the stress hormone signals that shift to catabolism, which by no means proves that as soon as we wake up we shift to catabolism.
Metabolism, with its yin and yang of anabolism and catabolism, is basically a topic common to biochemistry, cell biology, physiology, and endocrinology. I have a lot of years and a couple of diplomas and certificates saying I am supposed to know a fair amount about biochemistry and endocrinology.
I don't claim such expertise about sleep. I am not expecting you to yield to what I say because I have degrees but I hope I can at least persuade you that I know how most scientists and physicians use the term anabolic, and it isn't the way you are using it.
Please do a little research on what other people with expertise think anabolic and catabolic processes are and when they happen. I am not arguing that some sort of restorative process might not happen during sleep, just that there not a simple correspondence between anabolism and sleep.
In other words, I have patiently refuted you with facts. If you can provide some published supporting evidence we can perhaps craft some mention of the specific anabolic processes associated with sleep.
Or perhaps you might try using a set of words that is not already defined differently than you want to use them. Without further evidence, I remain unpersuaded that your theory belongs here or should be associated with the specific word anabolism.
Thanks for understanding and desisting from presenting your insights as encyclopedic fact. That's all fine and dandy but for this one problem - why do we sleep?
And the answer to that has to be found. I don't know where else to discuss it except here. It took me a while to get Mr. Sandman, the guardian of the Sleep page, to allow that sleep is not just a behavioral trait but a metabolic necessity. What we have with regard to sleep and awake is that they are metabolic, subcellular processes.
And they balance each other. I really like the last paragraph of the Anabolism page - "Because it is counterproductive to have anabolic and catabolic processes occurring in cells simultaneously, there are many signals that switch on anabolic processes while switching off catabolic processes and vice versa". I like that because it explains why can't be both awake and asleep at one time.
It just seems to make so much sense to me that being asleep is the normal state of animal life, from the one cell animal to the most complex multi-cell animal, and that being awake is only about getting nutrition and procreating. We humans are so busy when we're awake that this is obscured from us, but it's clear that this is all that every other animal life form does.
And the fact that an animal can be awake active and in a catabolic metabolic state for 16, 18 or 20 hours only means that it has achieved the ability to balance its metabolic equation by having a very efficient anabolic mechanism. As someone who thinks about these issues, what are some of your thoughts regarding these questions - why does any animal organism have periods of catabolic metabolism? Are there any animal organisms which don't have periods of catabolic metabolism?
How do catabolic metabolic activities contribute to the survival of an animal organism? I'd rather have a discussion with people who have your background than a discussion with people who are human behavioral scientists because sleep is not a human-centric activity. I'd also like to have you introduce editable subsections of the talk page. I don't know how to do that yet. GeneMosher 7 July Basically, I am afraid our understanding of the very words and the epistemologic basis for claiming a statement like those is meaningful and evaluatable as true or false are simply non-overlapping.
I don't think about physiological processes like you, I don't use these words with the meanings you do, but most importantly, I think we would have different criteria for judging a statement about a body process as true or false.