The given molecules are to be classified as triglyceride, saccharide or amino acid. Concept Introduction: Fats and oils are triglycerides. Triglycerides have three long hydrocarbon chains. Carbohydrates are polyhydroxy aldehydes or ketones , or their derivatives. A carbohydrate can be identified by the presence of the functional groups , C = O and OH , along its chain, and the CH 2 OH group. Carbohydrates can be classified as monosaccharides, disaccharides and polysaccharides. The monosaccharides are composed of a single sugar unit. The disaccharides are double-ringed structures in which two monosaccharide units are linked together. Amino acids are the repeating structural units in a protein molecule. They contain anamino group and a carboxylic acid group, which arebonded to a central carbon atom. The structure of an amino acid is represented as follows:

Question

Consider the following Figure 2 and two atoms that are initially an infinite distance apart, x =00, at which point the potential energy of the system is U = 0. If they are brought together to x = x, the potential energy is related to the total force P by dU dx = P Given this, qualitatively sketch the variation of U with x. What happens at x=x? What is the significance of x = x, in terms of the potential energy? 0 P, Force 19 Attraction Total Repulsion x, Distance Figure 2. Variation with distance of the attractive, repulsive, and total forces between atoms. The slope dP/dx at the equilibrium spacing xe is proportional to the elastic modulus E; the stress σb, corresponding to the peak in total force, is the theoretical cohesive strength.

Answer 1

Question

Chapter 16, Problem 72E

Interpretation Introduction

Interpretation:

The given molecules are to be classified as triglyceride, saccharide or amino acid.

Concept Introduction:

Fats and oils are triglycerides. Triglycerides have three long hydrocarbon chains.

Carbohydrates are polyhydroxy aldehydes or ketones, or their derivatives. A carbohydrate can be identified by the presence of the functional groups, C=O and OH, along its chain, and the CH2OH group.

Carbohydrates can be classified as monosaccharides, disaccharides and polysaccharides.

The monosaccharides are composed of a single sugar unit.

The disaccharides are double-ringed structures in which two monosaccharide units are linked together.

Amino acids are the repeating structural units in a protein molecule. They contain anamino group and a carboxylic acid group, which arebonded to a central carbon atom. The structure of an amino acid is represented as follows:

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