Answer:
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If a scientist observes an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds he/she is looking at a tertiary structural arrangement.
Answer:
5 digestive enzymes secreted by the intestinal glands :
Amylase - Maltase - Lactase - Lipase - Proteases
Just here for the points sorry luv 2A.)true
the black plague took a toll no the population back then and claimed alot of lives
