BIO 221 HW1

BIO 221 HW1 - Richard Canada HW# 1 9-21-2010 1) A strong...

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Richard Canada HW# 1 9-21-2010 1) A strong bond is a covalent bond where the elements share a valence electron and a weak bond is where the element either accepts or donates an electron to form a bond with another element. A hydrogen bond which is a weak bond is important in protein tertiary structure where glycine can form a hydrogen bond with cysteine. A strong bond is also apparent in protein tertiary structure where a covalent bond is formed between two cysteines which is also a disulfide bond. 2) A. Peptidoglycan surrounds the cytoplasmic membrane of most bacterium. D-alanine is an essential part of the structure of peptidoglycan and without it peptidoglycan wouldn’t exist. The bacterium would essentially lyse and burst. Cycloserine would kill all bacteria and would be more like penicillin because it acts the same by attacking the cell wall and lyse the cells. B. Competitive inhibitors bind to the active site of an enzyme and prevents the binding of other substrates that will ultimately bind to the enzyme to have its effect. The more inhibitors the more
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This note was uploaded on 11/17/2010 for the course BIOL 333 taught by Professor Walter during the Spring '10 term at Purdue.

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BIO 221 HW1 - Richard Canada HW# 1 9-21-2010 1) A strong...

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