
Concept explainers
(a)
Interpretation: To determine the starting material for the biosynthesis of alanine.
Concept introduction: Essential amino acids are those amino acids which cannot be synthesized by the body via biosynthesis and thus must be taken from the outside in form of dietary protein to meet the body’s need. Those amino acids which can be synthesized by biosynthesis within the liver are termed as nonessential amino acids.
The starting materials required for the biosynthesis of 10 nonessential amino acids within the human body are
(b)
Interpretation: To determine the starting material for the biosynthesis of serine.
Concept introduction: Essential amino acids are those amino acids which cannot be synthesized by the body via biosynthesis and thus must be taken from the outside in form of dietary protein to meet the body’s need. Those amino acids which can be synthesized by biosynthesis within the liver are termed as nonessential amino acids.
The starting materials required for the biosynthesis of 10 nonessential amino acids within the human body are
(c)
Interpretation: To determine the starting material for the biosynthesis of cysteine.
Concept introduction: Essential amino acids are those amino acids which cannot be synthesized by the body via biosynthesis and thus must be taken from the outside in form of dietary protein to meet the body’s need. Those amino acids which can be synthesized by biosynthesis within the liver are termed as nonessential amino acids.
The starting materials required for the biosynthesis of 10 nonessential amino acids within the human body are
(d)
Interpretation: To determine the starting material for the biosynthesis of proline.
Concept introduction: Essential amino acids are those amino acids which cannot be synthesized by the body via biosynthesis and thus must be taken from the outside in form of dietary protein to meet the body’s need. Those amino acids which can be synthesized by biosynthesis within the liver are termed as nonessential amino acids.
The starting materials required for the biosynthesis of 10 nonessential amino acids within the human body are

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Chapter 15 Solutions
Organic And Biological Chemistry
- 2. Draw the missing structure(s) in each of the following reactions. The missing structure(s) can be a starting material or the major reaction product(s). C5H10 H-CI CH2Cl2 CIarrow_forwardDraw the products of the stronger acid protonating the other reactant. དའི་སྐད”“ H3C OH H3C CH CH3 KEq Product acid Product basearrow_forwardDraw the products of the stronger acid protonating the other reactant. H3C NH2 NH2 KEq H3C-CH₂ 1. Product acid Product basearrow_forward
- What alkene or alkyne yields the following products after oxidative cleavage with ozone? Click the "draw structure" button to launch the drawing utility. draw structure ... andarrow_forwardDraw the products of the stronger acid protonating the other reactant. H3C-C=C-4 NH2 KEq CH H3C `CH3 Product acid Product basearrow_forward2. Draw the missing structure(s) in each of the following reactions. The missing structure(s) can be a starting material or the major reaction product(s). C5H10 Br H-Br CH2Cl2 + enant.arrow_forward
- Draw the products of the stronger acid protonating the other reactant. KEq H₂C-O-H H3C OH Product acid Product basearrow_forwardDraw the products of the stronger acid protonating the other reactant. OH KEq CH H3C H3C `CH3 Product acid Product basearrow_forward2. Draw the missing structure(s) in each of the following reactions. The missing structure(s) can be a starting material or the major reaction product(s). Ph H-I CH2Cl2arrow_forward
- 3 attempts left Check my work Draw the products formed in the following oxidative cleavage. [1] 03 [2] H₂O draw structure ... lower mass product draw structure ... higher mass productarrow_forward2. Draw the missing structure(s) in each of the following reactions. The missing structure(s) can be a starting material or the major reaction product(s). H-Br CH2Cl2arrow_forwardWrite the aldol condensation mechanism and product for benzaldehyde + cyclohexanone in a base. Then trans-cinnamaldehyde + acetone in base. Then, trans-cinnamaldehyde + cyclohexanone in a base.arrow_forward
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