5. (40) Circle the most correct answer to each statement. a. A negative test wit

Question

5. (40) Circle the most correct answer to each statement. a. A negative test with Tollen's reagent would be expected with: a-methylglucopyranoside (D)-slyceraldehye (L)-glucose b. One essential amino acid in the diet for humans is normally associated with: threonine proline c. The disaccharide which is NOT reducing is: maltose sucrose d. In DNA adenine base pairs with: cytosine guanine thymine e. The sequence of 3 bases is labeled a codon on: RNA mRNA RNA 1. The signal for the lone proton of DMF [HCIOCHsal is 82.80 2.95 805 & The total number of different "C NMR signals in 1 gnals in 1-methyl P4D-s h. The overall structure of a protein with subunits is called a quaternary structure a tertiary Prostaglandins are carboxylic acids with the total number of carbon atoms being 30 The cross-linked polyme' is:

Explanation / Answer

5. A. Alpha methylglucopyranoside, since lack of aldehyde group.

B. Threonine, which comes from diet

C. Sucrose is a non reducing sugar due to lack of hemiacetal linkage

D. Thymine

E. tRNA

F. 8.05 ppm

G. 7 signals

H. A quarternary structure

I. 20 carbons

J. Amylopectin is a cross linked polymer with D-glucose units

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