17. Proteins are long chains of amino acids joined together by peptide bonds. Which structure properly depicts the peptide bond formed between two generic amino acids? A) H,N- CH- CH-0 B) R2 H,N-CH ŘI H. C) H H;N-CH-N- CH-C-o R, D) H;N-CH-Ĉ-0-Ñ-CH-C-0- RI R2

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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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15. Which of the following best describes the primary function of mRNA in a cell?
A) To serve as a coenzyme in the enzyme-catalyzed hydrolysis of proteins
B) To serve as the template strand in the synthesis of DNA
To transcribe the instructions for protein synthesis from DNA and carry this information to the
C)
ribosomes
D) To transport amino acids to the ribosomes for protein synthesis
16. Insulin is important in regulating which physiologically important sugar?
A) fructose
B) galactose
C) glucose
D) ribose
17. Proteins are long chains of amino acids joined together by peptide bonds. Which structure
properly depicts the peptide bond formed between two generic amino acids?
A)
H,N
CH-
R2
B)
R2
ketotete
H,N-CH-
N -CH-C-O
R
H.
C)
H,N-
CH-N
CH-
R,
R2
D)
H
H,N-CH-C
CH-
R,
R2
18. Which compound has the lowest melting point?
A) CH3(CH2)14COOH
B) CH3(CH2)10CH=CH(CH2)2COOH
C) CH3(CH2)2CH=CH(CH2)4CH=CH(CH2)4COOH
D) CH3(CH2)½CH=CH(CH2)2CH=CH(CH2)2CH=CH(CH2)2COOH
19. The polar head group of a phospholipid
A) includes a phosphorus.
B) is usually uncharged.
C) form the hydrophobic interior of the membrane.
D) is attached via an ether bond.
Transcribed Image Text:15. Which of the following best describes the primary function of mRNA in a cell? A) To serve as a coenzyme in the enzyme-catalyzed hydrolysis of proteins B) To serve as the template strand in the synthesis of DNA To transcribe the instructions for protein synthesis from DNA and carry this information to the C) ribosomes D) To transport amino acids to the ribosomes for protein synthesis 16. Insulin is important in regulating which physiologically important sugar? A) fructose B) galactose C) glucose D) ribose 17. Proteins are long chains of amino acids joined together by peptide bonds. Which structure properly depicts the peptide bond formed between two generic amino acids? A) H,N CH- R2 B) R2 ketotete H,N-CH- N -CH-C-O R H. C) H,N- CH-N CH- R, R2 D) H H,N-CH-C CH- R, R2 18. Which compound has the lowest melting point? A) CH3(CH2)14COOH B) CH3(CH2)10CH=CH(CH2)2COOH C) CH3(CH2)2CH=CH(CH2)4CH=CH(CH2)4COOH D) CH3(CH2)½CH=CH(CH2)2CH=CH(CH2)2CH=CH(CH2)2COOH 19. The polar head group of a phospholipid A) includes a phosphorus. B) is usually uncharged. C) form the hydrophobic interior of the membrane. D) is attached via an ether bond.
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