All of the statements concerning monosaccharides are correct except A) The numbe

Question

All of the statements concerning monosaccharides are correct except A) The number of stereoisomers possible is 2^n, where n is the number of chiral carbon atoms in the molecule. B) Monosaccharides with 5 or 6 carbon atoms exist in solution in cyclic form. C) The two different cyclic forms of a particular monosaccharide are called tautomers. D) A molecule is classified as a D or L isomer by the position of the hydroxyl group on the chiral center farthest from the carbonyl group. E) Monosaccharides have the general formula C_n(H_2O)_n, but this only describes the number and kinds of atoms, not their structure. The molecule shown can be classified as a(an) A) Steroid. B) Eicosanoid. C) Wax. D) Glycerophospholipid. E) Sphingolipid. Triglycerols belong to which general class of organic molecules? A) Esters B) Alcohols C) Carboxylic acids D) Ketones E) Ethers The type of lipid that is predominant in cell membranes is A) Fats. B) Phospholipids. C) Waxes. D) Steroids. E) Leukotrienes. Eicosanoids function as A) Sex hormones. B) Thyroid hormone. C) Local hormones. D) Neurotransmitters. E) Membrane components.

Explanation / Answer

Ans 30 . C. The two different cyclic forms of a particular monosaccharide are called tautomers

This statement is incoorect because the two cyclic forms alpha and beta are called as anomers. Anomers differ in the configuration of monosaccharide at hemiacetal or acetal carbon.

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