Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    hi guys i have a biology aqa additional science exam coming up on the 22/01/13 and im literally shaking with anxiety i have revised half the syllabus and need to keep this revision consistent (distractions) could you guys help me with differentiating between an enzyme and a protiens thank you in advance 0
    Offline

    15
    ReputationRep:
    An enzyme is a class of proteins. They are made from the same amino acid building blocks. Their function is to catalyse biological reactions.
    Offline

    0
    ReputationRep:
    A protein is made up of a chain of 10 000+ amino acids and it is the sequence of the amino acids that determine its shape The pritein's function all depends on the way the protein coils up. An enzyme is a type of protein.
    Hope this helps!
    Offline

    0
    ReputationRep:
    (Original post by Mockery)
    An enzyme is a class of proteins. They are made from the same amino acid building blocks. Their function is to catalyse biological reactions.
    same amino acids at what?
    Offline

    0
    ReputationRep:
    there are many different types of proteins. Some provide strength and are found in the skin (for example fibrous proteins, eg collagen)
    others can physically move and allow muscles to contract (eg actin and myosin complexes)
    again others can catalyse chemical reactions (ie increase the rate of the reactions). Proteins of this type are collectively called 'enzymes'.
    Offline

    15
    ReputationRep:
    (Original post by Legal drugdealer)
    same amino acids at what?
    Are you familiar with the 20 common amino acid residues that are responsible for creating polypeptides? Enzymes are also proteins and are made out of the same stuff, the only differences between enzymatic and none enzymatic proteins is their structure and therefore their function.
    Offline

    14
    ReputationRep:
    Enzymes are globular proteins, if that's any help to you
    • Study Helper
    Offline

    17
    ReputationRep:
    (Original post by sophieH1303)
    A protein is made up of a chain of 10 000+ amino acids and it is the sequence of the amino acids that determine its shape The pritein's function all depends on the way the protein coils up. An enzyme is a type of protein.
    Hope this helps!
    Not quite, a protein can have a varying length amount of amino acids joined together, it doesn't have to be over 10 000+ amino acids. A protein can even have as little as 20 amino acids joined by peptide bonds
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Nav_Mallhi)
    Enzymes are globular proteins, if that's any help to you
    globular? no i dont get it not as yet
    • Thread Starter
    Offline

    0
    ReputationRep:
    guys guys guys:/ tooooo much information jeez :s sorry but could you explain in simpler terms
    Offline

    15
    ReputationRep:
    (Original post by tammy:))
    guys guys guys:/ tooooo much information jeez :s sorry but could you explain in simpler terms
    Is it possible to explain it any simpler?

    Enzyme = Protein

    It breaks and builds s***
    • Study Helper
    Offline

    17
    ReputationRep:
    (Original post by tammy:))
    guys guys guys:/ tooooo much information jeez :s sorry but could you explain in simpler terms
    A protein is a long chain of amino acids joined together to perform a function, whether it be receptor/cell signalling molecules, immunity eg immunoglobulins and many more roles.

    An enzyme is a specific class of protein, all enzymes have the same function which is to catalyse certain biochemical reactions. Does this help?
    Offline

    0
    ReputationRep:
    (Original post by tammy:))
    globular? no i dont get it not as yet
    globular as in 'more or less round in shape'. As opposed to fibrous (structural) proteins, which are long and thin in shape (like a string).
    Offline

    15
    ReputationRep:
    (Original post by warfarin)
    globular as in 'more or less round in shape'. As opposed to fibrous (structural) proteins, which are long and thin in shape (like a string).
    Transport and receptor proteins are also globular though, it isn't a specific characteristic for enzymes.
    Offline

    0
    ReputationRep:
    (Original post by Mockery)
    Transport and receptor proteins are also globular though, it isn't a specific characteristic for enzymes.
    you are quite right
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Mockery)
    Is it possible to explain it any simpler?

    Enzyme = Protein

    It breaks and builds s***
    thankx
    Offline

    0
    ReputationRep:
    (Original post by Mockery)
    Are you familiar with the 20 common amino acid residues that are responsible for creating polypeptides? Enzymes are also proteins and are made out of the same stuff, the only differences between enzymatic and none enzymatic proteins is their structure and therefore their function.
    oh kl kl
    Offline

    0
    ReputationRep:
    An enzyme is a protein, but a protein isn't necessarily an enzyme.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    What newspaper do you read/prefer?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.