Concept explainers
a.
To determine:
If the
Introduction:
Proteins are defined as the building block of amino acids. When two or more amino acids are linked in a chain, a compound called peptide is formed in which the carboxyl group of each acid is joined to the amino group of the next forming a
The
Molecules like fatty acids that consist of polar as well as non-polar parts are called amphipathic.
b.
To determine:
The arrangement of two polypeptide chains in an active insulin molecule.
Introduction:
Proteins are defined as the building block of amino acids. When two or more amino acids are linked in a chain, a compound called peptide is formed in which the carboxyl group of each acid is joined to the amino group of the next forming a
The
Molecules like fatty acids that consist of polar as well as non-polar parts are called amphipathic.
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EBK LABORATORY MANUAL FOR GENERAL, ORGA
- For the tripeptide SerArgIle which amino acid residues a. are hydrophilic b. are hydrophobic c. possess polar neutral R groups d. participate in two amide linkagesarrow_forwardDo the amino acid sequences: valine-asparagine and asparagine-valine represent the same compound? Explain.arrow_forwardFor the tripeptide GlyAlaCys a. What amino acid is located at the peptides N-terminal end? b. What amino acid is located at the peptides C-terminal end? c. How many peptide bonds are present? d. How many amide linkages are present?arrow_forward
- What special role does the amino acid cysteine have in the peptides vasopressin and oxytocin?arrow_forwardThe base sequences in mRNA that code for certain amino acids are Glu: GAA, GAG Val: GUU, GUC, GUA, GUG Met: AUG Trp: UGG Phe: UUU, UUC Asp: GAU, GAC These sequences are complementary to the sequences in DNA. a. Give the corresponding sequences in DNA for the amino acids listed above. b. Give a DNA sequence that would code for the peptide trp-glu-phe-met. c. How many different DNA sequences can code for the tetrapeptide in part b? d. What is the peptide that is produced from the DNA sequence TACCTGAAG? e. What other DNA sequences would yield the same tripeptide as in part d?arrow_forwardWhich of the following describes the primary structure of proteins? a. The collective shape assumed by all of the chains in a protein containing multiple chains. b. The folding of an individual protein molecule. c. The regular repeated shape of the protein molecules backbone. d. The sequence of amino acids bonded together by peptide bonds.arrow_forward
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