The keratin is held into its position by hydrogen bonds. Heat from the hot curlers provide sufficient energy to break these hydrogen bonds and bend straight hair into curls. More the no of disulfide bonds, more will be culrl hair. To bend hair from straight to curly we need to break hydrogen bonds.
So the answer is hydrogen bond
quest 4 a. rorogun bon b. lonic bonds c. disulfide-bridges d. dipolar bonds Choose one answer...
question 3 structure of the pentapeptide? dent of the pentapeptide with chymotrypsin gave the following Choose one answer. A. phe-phe-gly-val-eu B. gly-val-phe-leu-phe C. leu-gly-val-pho-phe D. phe-lou-gly-val-phe Incorrect Marks for this submission: 0/1 3 Marks: 1 Karl Nessler received the patent for the so-called "hot procedure for a permanent (hair) in 1906. The hair was treated with a basic solution (NaOH in waterph approx. 10) and then heated for several hours on the curler. The result was often extremely curly hair....
question 2 de 6 out of a maximum of 10 (60%) A complete turn of the A-DNA helix occurs at which distance? Choose one answer. . .O.Od A. 33 A B. 10 A C. 29 A D4A Incorrect Marks for this submission: 0/1. A pentapeptide has the following proportions of amino acids: gly (1), leu (1),val (1), phe (2). Treatment of the pentapeptide with chymotrypsin gave the following fragments: gly-val, leu, phe. Which is the structure of the pentapeptide? Choose...
choose the correct answer21\ Identify which one of the following changes in supply curve occurs when there is an increase in price of product:A\ Increase in supplyB\ Extension in supplyC\ Decrease in supplyD\ Contraction in supply 23\If the price of a product increases by 10% and demand decreases by 25%. It is the situation of: A\ Relatively inelastic demandB\ Unitary elastic demandC\ Perfectly elastic demandD\ Relatively elastic demand24\ In the analysis of its elasticity, if the demand for product “A”...