CHEMISTRY TEXTBOOK

level structure of proteins, namely primary, secondary, tertiary and quaternary structure of proteins. a. Primary structure of p ...

∝-Helix : The ∝-helix forms when a polypeptide chain twists into a right handed or clockwise spiral (Fig. 14.19). Some character ...

c. Tertiary structure of proteins : The three-dimensional shape adopted by the entire polypeptide chain of a protein is called i ...

14.3.5 Denaturation of proteins High temperature, acid, base and even agitation can disrupt the noncovalent interactions respons ...

The products leave the active site and the enzyme is then ready to act as catalyst again. Formation of enzyme-substrate complex ...

HO-CH 2 H H O H H OH OH OH HO-CH 2 H H O H H HO H OH or or HO-CH 2 O OH OH OH 1 (^432) (^5) HO-CH (^2) O OH OH 1 3 2 4 5 No OH a ...

HO-CH 2 O OHOH OH N N H NH 2 O + HO-CH 2 O OH OH N N NH 2 O 1' 3' 2' 4' 5' (D - ribose) (a ribonucleoside) HO-CH 2 O OH OH + N N ...

} Phosphate Sugar Phosphate Sugar Phosphate base Sugar base 3' Sugar-phosphate backbone base 5' (a) P S P S P S P S B B B B (b) ...

Remember... A nucleic acid contains a backbone consisting of alternating sugar and phosphate groups. Backbone of all types of D ...

Select the most correct choice. i. CH 2 OH-CO-(CHOH) 4 -CH 2 OH is an example of a. Aldohexose b. Aldoheptose c. Ketotetrose d ...

Answer the following i. Some of the following statements apply to DNA only, some to RNA only and some to both. Lable them acco ...

INTRODUCTION TO POLYMER CHEMISTRY aspects of organic polymers. You have learnt in Chapter 14 about carbohydrates, proteins and ...

Fig. 15.1 : Different chain configurations of Use your brain power polymers Differentiate between natural and synthetic polymer ...

a. Addition polymerization (or chain growth polymerization) b. Condensation polymerization (or step growth polymerization) c. Ri ...

Remember... Repeating units of condensation polymer do not have the same elemental composition as that of monomer. In this react ...

forces the fibres are crystalline in nature. For example : polyamides (nylon 6, 6), polyesters (terylene), etc. c. Thermoplastic ...

15.2.6 Classification of polymers on the basis of biodegradability : Most of the synthetic polymers are not affected by microbes ...

Do you know? Vulcanizing is carried out by heating raw rubber with sulfur powder in presence of some organic compounds called ac ...

a. Low density polyethylene (LDP) : LDP is obtained by polymerization of ethylene under high pressure (1000 - 2000 atm) and temp ...

Do you know? Orlon is used to make blankets, shawls, sweat shirts, sweaters. C - F bond is very difficult to break and remains u ...