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What causes protein to be denatured?
There are several things that can cause proteins to denature.Change in temperatureAlterations in pHHigh concentrations of polar substancesNonpolar substances (when hydrophobic groups are needed to maintain the structure)All these things represent a drastic change to the protein structure, and the protein can become denatured.
Why does unfolding a protein make it able to do its job in a living organism?
If by able you mean UNABLE, that is simple. A protein's function is determined entirely upon its shape. If you change the shape of a protein, for example, unfolding it, you change its function and make it unable to perform its job in a cell.
What effect do boiling have on chlorplasts suspension?
Boiling chloroplasts will cause them to be denatured. Depending upon how long the chloroplasts are boiled for depends on how many of the chloroplasts are denatured. For example, chloroplasts that are boiled for a very short time might still have some working chloroplasts that are able to photosynthesize.
Why does genetic code have to be exact in a protein?
An exact protein is produced only if all the amino acids (the building blocks) are in the correct sequence. Even is one amino acid is not in the right sequence (or even missing) the protein would not be able to correctly function. It may not be able to function at all. Since the genetic code is responsible for the creation of a protein, this has to be absolutely accurate in order to create functional proteins
When a protein such as an enzyme is subjected to too much heat?
The enzyme denatures, the internal bonds break. This means that the active site changes shape. This is because the arrangement of the secondary structures change After overheating an enzyme it is unusable
Is a denatured protein able to function?
The function of each protein is a consequence of its specific shape, which is lost when a protein denatures.
What is likely to happen to a protein molecule that is exposed to intense heat or radiation?
A protein may become denatured when exposed to intense heat or radiation. When a protein becomes denatured, its basic structure is damaged enough that it is no longer able to function.
What causes protein to be denatured?
There are several things that can cause proteins to denature.Change in temperatureAlterations in pHHigh concentrations of polar substancesNonpolar substances (when hydrophobic groups are needed to maintain the structure)All these things represent a drastic change to the protein structure, and the protein can become denatured.
What does it mean to denature an enzyme?
The dependence of protein function on a protein's specific shape becomes clear when proteins are altered. Denaturation is the process by which proteins lose their structure and function because of an outside factor, such as a change in temperature or pH.
Why does unfolding a protein make it able to do its job in a living organism?
If by able you mean UNABLE, that is simple. A protein's function is determined entirely upon its shape. If you change the shape of a protein, for example, unfolding it, you change its function and make it unable to perform its job in a cell.
What happens to enzymes in your body whenever your run fever?
Enzymes can not function well at higher tempatures so they become denatured and their body functions are not able to stay normal.
How is a denatured protein different from a normal protein?
First of all, a protein consists of chains of amino acids and a single amino acid is coded by one codon of DNA. Mutations are able to insert, delete, replace and shift codons, which can result in amino acids being changed, removed or added, which would affect the protein that the amino acids are building.For example;Here is a strand of DNA in which the three codons in the middle codes for the amino acids.....TGG ATT ATG GAG TTC....-----> Isoleucine, Methionine, Glutamic acidSay that the strand of DNA has it's reading frame mutated (shifted).....GGA TTA TGG AGT TC....-----> Leucine, Tryptophan, SerineNotice how completely different amino acids arose from the mutation. Such a change may effect the protein's characteristics, as well as the phenotype of the organism.
What effect do boiling have on chlorplasts suspension?
Boiling chloroplasts will cause them to be denatured. Depending upon how long the chloroplasts are boiled for depends on how many of the chloroplasts are denatured. For example, chloroplasts that are boiled for a very short time might still have some working chloroplasts that are able to photosynthesize.
What happens when an enzyme is denatured?
When an enzyme is denatured the active site which allows it to catalyze reactions is destroyed, rendering the enzyme useless. This process is irreversible but the remains are recycled to form new enzymes.
Why might a protein fuction incorrectly if its shape were changed?
short answer if the shape of a protein is changed it could change the function by the results in disruption of cell activity and possibly cell death.Conformational change of a functional protein, also known as denaturation. Denaturation is a process in which proteins or nucleic acids lose their structure (tertiary and secondary structure) by application of some external stress or compound for example, treatment of proteins with strong acids or bases, high concentrations of inorganic salts, organic solvents (e.g., alcohol or chloroform), or heat. If proteins in a living cell are denatured, this results in disruption of cell activity and possibly cell death. Denatured proteins can exhibit a wide range of characteristics, from loss of solubility to communal aggregation. Communal aggregation is the phenomenon of aggregation of the hydrophobic proteins to come closer and form the bonding between them, so as to reduce the total area exposed to water.Proteins are very long strands of amino acids linked together in specific sequences. A protein is created by ribosomes that "read" mRNA that is encoded by codons in the gene and assemble the requisite amino acid combination from the genetic instruction, in a process known as translation. The newly created protein strand then undergoes posttranslational modification, in which additional atoms or molecules are added, for example copper, zinc or iron. Once this post-translational modification process has been completed, the protein begins to fold (spontaneously, and sometimes with enzymatic assistance), curling up on itself so that hydrophobic elements of the protein are buried deep inside the structure and hydrophilic elements end up on the outside. The final shape of a protein determines how it interacts with its environment.When a protein is denatured, the secondary and tertiary structures are altered but the peptide bonds between the amino acids are left intact. Since the structure of the protein determines its function, the protein can no longer perform its function once it has been denatured. Most biological proteins lose their biological function when denatured. For example, enzymes lose their activity, because the substrates can no longer bind to the active site, and because amino acid residues involved in stabilizing substrates' transition states are no longer positioned to be able to do so.
What is lost when an enzyme is denatured?
The enzymatic function of the enzyme is lost when it is denatured. Of course this also means that the enzyme's structure has changed too. Depending on the severity of the denaturation, the enzyme may be able to revert back to its original structure once the abused conditions are removed.
Why does genetic code have to be exact in a protein?
An exact protein is produced only if all the amino acids (the building blocks) are in the correct sequence. Even is one amino acid is not in the right sequence (or even missing) the protein would not be able to correctly function. It may not be able to function at all. Since the genetic code is responsible for the creation of a protein, this has to be absolutely accurate in order to create functional proteins
