Explain what the stages of protein folding are and how the protein …
The tertiary structure is the protein folded into its precise 3D structure, relating to the functon. This is held together by a range of non-covelant interactions between side groups, including ionic interations, disuplhide bridges, hydrophobic interactions, Van der …
How can a mutation in a sequence of DNA affect the function of a ...
Firstly, it is important to recap how DNA codes for synthesis of proteins. mRNA is formed from complementary base pairing to the template strand of DNA in a process called transcription. Every 3 bases within a gene codes for one codon in the mRNA sequence. This mRNA then leaves the nucleus and binds to a ribosome in they cytoplasm.
Explain the differences between primary, secondary and tertiary …
Explain the differences between primary, secondary and tertiary protein structure. Primary structure is the order in which what amino acid is bound the other with a peptide bond. This is coded for by the order of codons in a gene.
What is mRNA splicing and why is it important? - MyTutor
Splicing allows one gene to code for multiple proteins by altering which exons will remain in the mature mRNA transcript . This will change the sequence of amino acids in the primary structure of the protein which will in turn effect protein folding; giving rise to proteins with different structures with different purposes from a single gene.
What is the difference between secondary and tertiary protein
Secondary: localised folding within the polypeptide chain that is stabilised by hydrogen bonds. The most common secondary protein structures are alpha helices and beta sheets. Tertiary: this is the final form the protein takes once the different …
Outline the process of protein synthesis (8 marks). - MyTutor
Protein synthesis is a biology key word and we need to associate this word with its 2 stages: Transcription and translation. Because there are 8 marks available for this question, I would recommend giving a minimum of 4 correct chronological points for each of the stages to guarantee full marks!Transcription:1) In transcription, RNA polymerase ...
Outline the process of protein synthesis in a cell. | MyTutor
1) Firstly, the instructions to produce a protein are contained within part of the DNA molecule called a gene. 2) This information is copied from the DNA to form another information-carrying molecule called messenger RNA (mRNA). This process …
What is the role of mRNA in protein synthesis? - MyTutor
This whole process is known as transcription. So, mRNA is important becuase it allows the genetic information to be used to make proteins as the DNA molecule is too large to move out of the nucleus. The mRNA codons will then be read to the ribosome (so essentially they have delivered the message) so that then the ribosomes can fit together the ...
Describe the structure of globular proteins. | MyTutor
There are 4 levels of structure associated with a globular protein; primary, secondary, tertiary and quarternary. The primary structure is the organisation of amino acids, bonded by peptide bonds. The secondary structure is the shape this chain of amino acids takes and can be either a Beta pleated sheet or a Alpha helix.
Outline the process of ATP generation by chemiosmosis.
This is a process that occurs on the membrane of the mitochondria. Here the electrons are passed from one electron carrier to the next in a chain know as the electron transport chain. With each carrier being a lower energy state than the next, the excess energy is used to pump protons from the matrix across the membrane to create a ...