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A food company intends to produce pineapple jelly using fresh pineapple. However, the food technologist realised the enzyme in fresh pineapple can breakdown gelatine molecules instead of enabling the jelly to set. Suggest what can be done to prepare the pineapple jelly as intended.

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ii)	How does hydrolysis differ from denaturation?

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ii)	How does hydrolysis differ from denaturation?

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i)	The term denatured and how it affects the enzyme structure.    

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i)	The term denatured and how it affects the enzyme structure.    

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The enzyme carbonic anhydrase catalyses the decomposition of carbonic acid molecules to carbon dioxide and water in the lungs. When heated above 60°C, the enzyme becomes denatured.

Referring to the carbonic anhydrase enzyme, describe:

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Oxytoxin is a hormone that causes contractions during child birth. The image of oxytoxin shown here is a ‘ball and stick’ computer model. It is a polypeptide containing nine amino acids in the sequence

Cys-Tyr-lle-Gln-Asn-Cys-Pro-Leu-Gly

The colour code of the atoms is carbon (grey), oxygen (red), nitrogen (blue), hydrogen (white) and sulfur (yellow).

a)  Refer to the model and the labels below to describe the chemical structure of this polypeptide. Your answer should include the name the chemical bond labelled A, the significance of the groups labelled B, C and D which result in the overall three-dimensional shape of oxytoxin.

b)  Suppose a mutation occurred to one of the amino acids in oxytoxin whereby isoleucine (lle) was replaced with leucine (leu). In your opinion, how would this effect the three dimensional shape of oxytoxin.

Source: https://www.sciencephoto.com/media/450344/view/oxytocin-hormone-molecule

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In groups, answer the two questions below. Your answer need to be in the form of key points. Your group have 30 minutes to discuss and fill the canvas in padlet.