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Cells work best at very specific pH's, too low or high and they will not function properly.
All living things are water-based systems, which means that they depend heavily on aqueous equilibria, especially acid-base equilibria. Therefore, all the acid-base and pH concepts we have discussed so far are extremely important to biochemistry, which is the study of the chemistry of biological systems.
Just as in other acid-base systems, biological macromolecules act as acids and bases by donating and accepting protons. However, due to the size of these molecules, they often contain several different groups that accept or donate protons instead of just one such group. Thus, we talk about macromolecules as having acidic and basic groups rather than as being acids and bases. These acidic and basic groups act as weak acids and bases, with Ka values which determine the extent of dissociation of the group depending on the pH of the system. Therefore, changes in the pH around the macromolecule will determine which groups are protonated and which are not, which in turn determines properties of the molecule. This is especially important for enzymes, which are proteins that act as catalysts for important biological reactions. Most enzymes only work within a certain pH range.
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∙ 11y ago
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∙ 7y agoOrganisms and the chemical reactions that make them living are affected by pH. Some do well in with an acidic pH and some do well in a basic pH situation. Humans cells do best with a pH of 7.4. If the level becomes too acidic or too basic, the proteins necessary for life (mainly enzymes) become inactivated. The cells will die and then the organism will die.
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∙ 13y agoYour pH level effects almost everything. pH is a measure of the acidity of an aqueous solution. pH must be equal to 7. The pH scale ranges from 0 to 14.
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∙ 15y agobecause changes in pH have so many effects on the rates of chemical reactions, and it can, like temperature, make enzymes and the active sites inactive
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∙ 15y agoWhat is the biochemical relevance of pH?
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Why is it important to maintain the pH 6 to 8?
We all know that biology can be tough sometimes but you have to think of it as this way, as a biology teacher I think that all learners should try my method. The following answers your question. If you make the pH 5 then it ill be too low for the alkali or acid to reveal its colour but if you put it at 9 it is too high. So to be safe the pH always needs to be 6-8.
Why are buffers important in Chemistry and Biology?
Because they help maintain homeostasis within an organism by keeping pH at a nearly constant value. This is important because in humans, for example, a pH shift of about only about .4 units is fatal.
How important biology to you?
Biology is life. How the grass grows, the birds chirp and how we live. We breathe! Biology teaches us how are body works. Because of biology we have created medicine to fight off infection. So why is biology important to us??? You tell me.
Why is biology very important?
kfmghmm
Why is it important to add pH buffers to microbiological media?
it is important to maintain them because most bacterias die at high temperature and more pH and fail to grow in low temperature and pH. therefore the ideal pH and temperature for their growth is 7 and 37 degrees respectively.
Why is it important to maintain the pH 6 to 8?
We all know that biology can be tough sometimes but you have to think of it as this way, as a biology teacher I think that all learners should try my method. The following answers your question. If you make the pH 5 then it ill be too low for the alkali or acid to reveal its colour but if you put it at 9 it is too high. So to be safe the pH always needs to be 6-8.
Why is water an important solvent in biology?
On the pH scale, water is neutral. Water is found in all life. Also, it's a very stable substance that is easy to control.
Why are buffers important in Chemistry and Biology?
Because they help maintain homeostasis within an organism by keeping pH at a nearly constant value. This is important because in humans, for example, a pH shift of about only about .4 units is fatal.
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Why is biology very important?
kfmghmm
