John D. Watson
I feel like there are conflicting answers to this, probably because both play a role...tertiary structure is the actual 3-D structure, which dictates how the protein interacts on a molecular level, but primary structure ultimately determines tertiary...a recent practice question said primary structure, but I've seen tertiary as the answer before...Does anyone have a clear answer/reasoning for that answer?? interesting question. what happens if you change an important catalytic residue but maintain tertiary structure? no function. what if you denature something and it loses shape? no function. both are right. a question like this on the MCAT would definitely be more explicit, examples: it is found that a patient has a single amino acid mutation resulting in the change in activity of phosphofructokinase. this mutation most directly affects? -answer: primary structure, its a single amino acid mutation, the rest of the protein is probably the same. urea, a denaturing agent and byproduct of amino acid metabolism is found abnormally in other parts of the body. enzymes in this part of the body are unable to function properly most likely due to a change in: -tertiary structure. overall shape has changed.
One example of a body structure that doesn't seem to have a function is the human appendix. This small, pouch-like organ located near the junction of the small and large intestines has historically been considered a vestigial structure with no clear purpose in modern humans. Other examples include remnants of the tailbone in humans and wisdom teeth, which are often considered vestigial structures that served a purpose in our ancestors but are less functional in present-day humans.
When a protein has lost its 3D structure it becomes polypeptide chain with some secondary structure elements are they may simply degraded to it primary structure which is polypeptide chain.3D structure is a native structure of protein molecule where it can have the correct folding stabilized by its intra and inter molecular interactions among its residues.Proteins can loose its structure when they are exposed to a denaturing condition which is change in buffer environment such as pH, temperature,ion salts, metals and detergents such as SDS can unravel the proteins structure. Reducing agents such as DTT or 2-mercaptoethanol or often used with heat (95 degrees) to denature the protein completely while resolving them on the gel.
In most cases, extremes of temperature denature (alter the 3D structure of) proteins. In biological systems that denaturing temperature may be fairly mild. Another term for protein denaturing is coagulation which is what happens to the proteins of a boiled egg.
1. Cells are the basic unit of structure in all living things.2. Cells carry on all life processes.even though you only said two...3. Cells are produced by other living cells.
vestigial
Influenced by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong; -- said of a person., Characterized by a regard to conscience; conformed to the dictates of conscience; -- said of actions.
Two samples are said to homologous, in this context, when they are both very similar in structure and shape and more than likely function.
Influenced by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong; -- said of a person., Characterized by a regard to conscience; conformed to the dictates of conscience; -- said of actions.
To know how much training will be needed a person will need to know what the exact job is. Since there is not anything said about what the exact job is a person will no know the answer.
If you are referring to the jobs of the three branches, the legislative branch makes laws, the judicial branch interprets said laws, and the executive branch enforces them.
I feel like there are conflicting answers to this, probably because both play a role...tertiary structure is the actual 3-D structure, which dictates how the protein interacts on a molecular level, but primary structure ultimately determines tertiary...a recent practice question said primary structure, but I've seen tertiary as the answer before...Does anyone have a clear answer/reasoning for that answer?? interesting question. what happens if you change an important catalytic residue but maintain tertiary structure? no function. what if you denature something and it loses shape? no function. both are right. a question like this on the MCAT would definitely be more explicit, examples: it is found that a patient has a single amino acid mutation resulting in the change in activity of phosphofructokinase. this mutation most directly affects? -answer: primary structure, its a single amino acid mutation, the rest of the protein is probably the same. urea, a denaturing agent and byproduct of amino acid metabolism is found abnormally in other parts of the body. enzymes in this part of the body are unable to function properly most likely due to a change in: -tertiary structure. overall shape has changed.
Mr. Dow?
Kathleen Roskot
disks
parallel
The United States Parachute Association dictates a minimum container opening altitude of 2,000'. That said, I've seen it done from as low as 400'.