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#1 chicken licking

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Posted 05 January 2005 - 09:52 PM

Can someone help with the following questions...

1.Cancer is caused by genetic changes that cause cells to divide and grow out of control. Why are mutagenic agents also carcinogenic?

2. Why are some protein molecules easily denatured?

Thanks for any help.

#2 Ally

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Posted 11 January 2005 - 11:05 PM

Sorry if it's a bit late but I'll have a try.

QUOTE(chicken licking @ Jan 5 2005, 09:52 PM)
2. Why are some protein molecules easily denatured?

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You'll have to point out here that enzymes are protein molecules which are easily denatured. Their shape becomes distorted at high temperatures (and also different PH's) since the intra and inter-molecular forces break apart. It also loses it's functionality when it is denatured, i.e. it doesn't work.

So basically, temp and pH change the shape of enzymes and so they become denatured.

Remember that you should also state what denatured means in your answer, even though it's not directly asked.

HTH!

#3 chicken licking

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Posted 15 January 2005 - 07:08 PM

Thanks for the help. smile.gif Totally cleared it up for me.





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