Biology HSC Syllabus - Maintaining A Balance (All Dot Points Answered)

9.2 - Maintaining a Balance:1. Most organisms be active inside a limited temperature range:? get wind the role of enzymes in metabolic process, describe their chemical composition and use a guileless model to describe their specificity in substrates:?Role of enzymes in metabolism:Metabolism refers to all the chemical reactions occurring in organismsEnzymes atomic number 18 biologic catalysts which increase the rate of chemical reactionsWithout enzymes, metabolism would be as well slow to support life?Chemical composition of enzymes: totally enzymes are made of proteinProteins consist of one or to a greater extent polypeptide chain.

These are composed of long chains of amino acids linked together by peptide bonds?Structure of enzymes:In enzymes, the polypeptide chain is folded into a 3-dimensional globular make forPart of the enzyme is called the active come in. This part attaches to the substrateThe substrate are the molecules the enzymes acts upon?Specificity of enzymes:Enzymes are highly specific in their action; this means that each(prenominal) enzyme acts on one substrate onlyThis is because the shape of the active site of the enzyme matches the shape of the substrate materialThe molecules the enzyme act upon are called the substrateThe substrate molecules tie down to the active site and a chemical reaction occursThe products are the substances that the substrate(s) become.



One substrate can be split, or deuce substrates can be joined?Models to explain specificity:The Lock and report Model suggests that the substrate fits exactly into the active site of the enzyme deal a key fits into a lock. It assumes that the enzyme had a rigid and unchangeable shape.

The Induced Fit Model states that the binding of the substrate to the enzyme ?induces? a temporary change in shape of the enzyme. The new shape of the enzyme better accommodates the shape of the substrate and a reaction occurs.

?Identify the pH as a way of describing the acidity of a substance:?The substance that...

If you want to get a unspoiled essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper