How many chiral carbons are there in this structure? OH D1 2 3 OH 01 4 5 O

What are the basic structural units of proteins? a) amino acids b) monosaccharides c) triglycerides d) fatty acids Which of the following statements is true of all amino acids a) All amino acids have a D-isomer b) All amino acids have a L-isomer c) The amino group is attached to the carbon atom of the carboxyl group. d) The amino group and the carbon of the carboxyl group are attached to the same carbon atom

Consider the aldohexose (monosaccharide) shown below in a line structure. Which of the following correctly designates the absolute configuration (R or S) of each chiral carbon in this molecule? Но E OH OH O2R, 3S, 4R, 5R O 2R, 3R, 4S, 5R O 2R, 3R, 45, 5S O25, SR, 4S, 55 O2R, 3R, 4R, SR O2S, 3S, 4S, 5R O2S, 35, 4R, 5R O2S, 3R, 4R, 5S O2S, 3R, 45, 5S O 2R, 35, 4S, 5R O2R, 35, 4R, 5S O2R, 35, 45, 5S O2S, 3S, 4R, 55 O2S, 3R, 45, 5R O 2R, 3R, 4R, 55 O 25, 3R, 4R, 5R OH OH 0

How many chiral carbons are present in the following molecule? 3 4 5 6 CI Br

how many chiral senters are in this molecule

Draw the structures of the tripeptides gly-ala-ser and ser-ala- gly. How many other tripeptides are possible using these three amino acids?

2. Which of the following compounds are optically active? Identify the chiral carbon with an asterisk (*). a. Butan-2-ol b. 2-aminopropanoic acid c. 2,3-dichlorobutane d. 1-phenylethanol

Is methane chiral?

What type of bond is found between two -SH groups and can be found in proteins

How many chiral carbon atoms are present in the following compound? H3C- H3C