The three ways in which the structure of chlorophyll differs from the structure of heme are to be determined. Concept introduction: The basic molecular structure of chlorophyll contains a chlorine ring, which contains four nitrogen atoms surrounding the central magnesium atom. In addition to that, it contains several other side chains and a hydrocarbon tail. The molecular structure of hemoglobin contains four heme groups surrounding a globin group in the tetrahedral fashion. The four iron atoms bind to the oxygen atom forming an oxyhemobglobin molecule. The major difference between the structures of chlorophyll and heme group is the presence of a cyclopentanone ring fused to the tetrapyrrole ring.

Question

carbons in each of the structures below. For instance, the central carbon of chloromethylbutane (pictured 3. A chiral carbon is a carbon that is single-bonded to four different types of groups. Identify the chiral above) is a chiral carbon. (Can you see how the groups attached to it are all chemically different?) In each of the chiral molecules below, identify all the carbons that are chiral carbons by drawing a circle around each one of them. (a) the carbohydrate glucose H O (b) the carbohydrate fructose CH₂OH 1C H-C-OH 3 HO-C-H 4 H-C-OH 5 H-C-OH 6CH₂OH D-Glucose (linear form) (c) the amino acid leucine O O H3C. HO H H- -OH CH 3 NH2 H- -OH CH₂OH OH

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Question

Chapter 22, Problem 5RE

Interpretation Introduction

Interpretation:

The three ways in which the structure of chlorophyll differs from the structure of heme are to be determined.

Concept introduction:

The basic molecular structure of chlorophyll contains a chlorine ring, which contains four nitrogen atoms surrounding the central magnesium atom. In addition to that, it contains several other side chains and a hydrocarbon tail.

The molecular structure of hemoglobin contains four heme groups surrounding a globin group in the tetrahedral fashion. The four iron atoms bind to the oxygen atom forming an oxyhemobglobin molecule.

The major difference between the structures of chlorophyll and heme group is the presence of a cyclopentanone ring fused to the tetrapyrrole ring.

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