Homework Answers
Answer 2
Myoglobin is a globular protein present in skeletal muscles. A protein fold itself many times to form a tertiary structure. Therefore, the non-polar amino acids are located in the hydrophobic center of the proteins.
Answer 3
In primary structure of proteins, amino acids are linked covalently by peptide bonds. Hence, correct answer is option a.
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Lumpur QUESTION 2 Myoglobin is a globular protein. About half of its 153 amino acids have...
Even though hydrophobic amino acids tend to be buried in the interior of a globular protein,...
Even though hydrophobic amino acids tend to be buried in the interior of a globular protein, polar neutral and polar charged amino acids are found in the interior of a globular protein as well. Recall Figure 4.26 of myoglobin. To see how this can happen, consider a model of a generic globular protein (below). The side chains of only seven of the amino acids are shown. 5. "DH" is a side chain that is a hydrogen bond donor "A" is...
Review| Constants| Periodic Table Protein structure is conceptually divided into four levels, from most basic to...
Review| Constants| Periodic Table Protein structure is conceptually divided into four levels, from most basic to higher order Primary structure describes the order of amino acids in the peptide chain. Secondary structure describes the basic three-dimensional structures, a-helices and B sheets. Tertiary structure describes how the secondary structures come together to form an individual globular protein. Quatemary structure results from individual proteins coming together to form multi-subunit protein complexes Part A Complete the following vocabulary exercise relating to the level...
Since the secondary structure of a protein results from hydrogen bonding between components shared by all amino acids
Distinguish between the different levels of protein structure, including primary, secondary, tertiary, and quaternary Question Is the following statement true? If not, explain why not: Since the secondary structure of a protein results from hydrogen bonding between components shared by all amino acids (a hydrogen on an amide N on one amino acid interacts with an oxygen on the carbonyl of another amino acid), the secondary structure does not depend on the specific amino acid groups (the R-groups) in the amino acid chain. Select...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids and glycerol fatty acids and water fatty acids and sugar e) 61) The bond between two amino acids is a: a) hydrogen bond b) covalent bond c) peptide bond d) b and c e) none of the above 62) Hemoglobin has which tertiary structure: a) fibrous b) globular c) four subunits--two alpha chains, two beta chains d) alpha helix e) none of the above...
QUESTION 2 Select the CORRECT statements (chose all that are correct). Secondary protein structures are held...
QUESTION 2 Select the CORRECT statements (chose all that are correct). Secondary protein structures are held together by disulphide bridges/bonds. Alpha helices and beta sheets are common secondary protein structures. Tertiary protein structures are held together by covalent bonds only. Secondary protein structures are held together by hydrogen bonds only. All proteins have a quaternary protein structure. Amino acids linked with a peptide bond make up the primary protein structure.
The _______ of amino acids in a protein is referred to as its primary structure
24. The _______ of amino acids in a protein is referred to as its primary structure. A) twisting B) sequencing C) folding D) none of these 25. The structure of a protein is most important because the _______ of the amino acids determines its overall shape, function and properties. A) primary, twisting B) primary, sequencing C) secondary, twisting D) secondary, folding E) none of these 26. The secondary structure of a protein is due to_______ between amino acid residues. A) hydrophobic interactions B) hydrogen bonding...
Question 1 The protein in the diagram is (circle all that apply): Group of answer choices...
Question 1
The protein in the diagram is (circle all that apply):
Group of answer choices
a) a peripheral membrane protein
b) an integral membrane protein
c) a lipid anchored protein
Question 2
The protein shown in the diagram could potentially function as
(circle all that apply):
Group of answer choices
a) a receptor
b) a transmembrane anchor
c) a pore or channel
Question 3
The protein shown in the diagram has which of the following
(choose all that apply)?...
1) Select all that apply. Globular proteins: a)are found in hair and wool. b)include myoglobin and...
1) Select all that apply. Globular proteins: a)are found in hair and wool. b)include myoglobin and collagen. c)are usually water soluble. d)aggregate in aqueous media. e)are often made of β-pleated sheet and α-helix sections wrapped into compact structures. 2) Select all that apply. The Bohr effect: a)depends on the atomic orbital structure of hydrogen. b)can be summarized as a reduction in the oxygen affinity of hemoglobin with decreasing pH. c)is explained by the protonation of key amino acids, including the...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has a biological function. 15ecause proteins are so large, their structure has several levels, all of which are important for the proper functioning of the protein. Ultimately, the sequence of amino acids (ordering of polar and nonpolar amino acids) dictates the 3-dimensional shape of a protein and this dictates its primary function. Level 1: Primary (1") The amino acid sequence of a polypeptide Protein Backbone...
1. Which of the following statements is consistent with the structural motifs in 1OPF? This protein...
1. Which of the following statements is consistent with the
structural motifs in 1OPF?
This protein has tertiary structure, where each subunit is a
large parallel beta barrel.
This protein has quaternary structure, where each subunit is a
large antiparallel beta barrel.
This protein has tertiary structure, where each subunit is a
large antiparallel beta barrel.
This protein has quaternary structure, where each subunit is a
large parallel beta barrel.
3. Given the information in the PDB entry for 1OPF,...
Even though hydrophobic amino acids tend to be buried in the interior of a globular protein, polar neutral and polar charged amino acids are found in the interior of a globular protein as well. Recall Figure 4.26 of myoglobin. To see how this can happen, consider a model of a generic globular protein (below). The side chains of only seven of the amino acids are shown. 5. "DH" is a side chain that is a hydrogen bond donor "A" is...
Review| Constants| Periodic Table Protein structure is conceptually divided into four levels, from most basic to higher order Primary structure describes the order of amino acids in the peptide chain. Secondary structure describes the basic three-dimensional structures, a-helices and B sheets. Tertiary structure describes how the secondary structures come together to form an individual globular protein. Quatemary structure results from individual proteins coming together to form multi-subunit protein complexes Part A Complete the following vocabulary exercise relating to the level...
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids and glycerol fatty acids and water fatty acids and sugar e) 61) The bond between two amino acids is a: a) hydrogen bond b) covalent bond c) peptide bond d) b and c e) none of the above 62) Hemoglobin has which tertiary structure: a) fibrous b) globular c) four subunits--two alpha chains, two beta chains d) alpha helix e) none of the above...
QUESTION 2 Select the CORRECT statements (chose all that are correct). Secondary protein structures are held together by disulphide bridges/bonds. Alpha helices and beta sheets are common secondary protein structures. Tertiary protein structures are held together by covalent bonds only. Secondary protein structures are held together by hydrogen bonds only. All proteins have a quaternary protein structure. Amino acids linked with a peptide bond make up the primary protein structure.
Question 1
The protein in the diagram is (circle all that apply):
Group of answer choices
a) a peripheral membrane protein
b) an integral membrane protein
c) a lipid anchored protein
Question 2
The protein shown in the diagram could potentially function as
(circle all that apply):
Group of answer choices
a) a receptor
b) a transmembrane anchor
c) a pore or channel
Question 3
The protein shown in the diagram has which of the following
(choose all that apply)?...
Protein Structure A protein contains a string of amino acids (usually more than 50) that has a biological function. 15ecause proteins are so large, their structure has several levels, all of which are important for the proper functioning of the protein. Ultimately, the sequence of amino acids (ordering of polar and nonpolar amino acids) dictates the 3-dimensional shape of a protein and this dictates its primary function. Level 1: Primary (1") The amino acid sequence of a polypeptide Protein Backbone...
1. Which of the following statements is consistent with the
structural motifs in 1OPF?
This protein has tertiary structure, where each subunit is a
large parallel beta barrel.
This protein has quaternary structure, where each subunit is a
large antiparallel beta barrel.
This protein has tertiary structure, where each subunit is a
large antiparallel beta barrel.
This protein has quaternary structure, where each subunit is a
large parallel beta barrel.
3. Given the information in the PDB entry for 1OPF,...
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