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![Az _ &_8_o -CH3 Alkane side chaine Alkane Ang non polar, unchanged. PH of buffer PHP pkat log (salt) [heid] PH= 1.8+ log to](http://img.homeworklib.com/questions/4da2f020-b4ba-11eb-9253-89159d993a07.png?x-oss-process=image/resize,w_560)
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What category, based on polarity of the R group, would the following hypothetical amino acid be...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon that is chiral (i.e., has 4 different groups attached) Chiral compounds rotate plane polarized light Memorize amino acid 1) structure, 2) classification (hydrophobic, aliphatic, aromatic, negatively charged, positively charged, polar uncharged) Be able to draw glycine (the generic amino acid) Given an amino acid structure and pKas of ionizable groups, be able to determine the charge at pH 1, pH 14, and pH 7...
Fill in the blanks for each amino acid Amino Acid Properties Name of R-group Properties Amino...
Fill in the blanks for each amino acid
Amino Acid Properties Name of R-group Properties Amino Acid Type of Polarity pKa Charge at Special functional group pH-7 Properties (hn(wpp)amgies applicable) (whpee Alanine Arginine Asparagine Aspartate Carboxyl Polar 3.9 Sulfhydryl Polar N/A Forms S-S Glutamine Glutamate Histidine Isoleucine Lysine Methionine Phenylalanine Aromatic Non-Polar Absorbs G@ 280 nm N/A Proline Can be Serine Threonine Tryptophane Tyrosine Valine
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3...
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3 R-C=CH-Coo NH3 NH3 NH3 ONH 3 D) coo B) E) 2) Which of the following amino acids has a sulfur in the R group? A) serine B) cysteine C) asparagine D) tyrosine E) leucine 3) Which of the following terms describes the side chain of valine? A) acidic B) basic C) charged, polar D) uncharged, polar E) nonpolar 4) Which of the following is...
With this information what is the PH of the .1 M acetic acid sol and .1...
With this information what is the PH of the .1 M
acetic acid sol and .1 M acetic acid buffer sol? Please help
solutions to observe that buffers resist pH changes. Burette readings should be made to the nearest 0.1 mL (or 0.05 mL if possible), A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate ion (typically added as sodium acetate). For acetic acid, pK, = -log (1.8 x 10-)...
"R" group polarity nonpolar, polar, or polar with H- bonds. 1. choose any two know amino acids with similar Rf and based...
"R" group polarity nonpolar, polar, or polar with H-
bonds.
1. choose any two know amino acids with similar Rf and based on the
size and polarity of their side chains, give an explanation for why
their retention factors are similar.
2. choose any two known amino acids with very different Rf values
and based on the size and polarity of their side chains, give an
explanation for why their retention factors are dissimilar.
3. Explain why lysines Rf is...
(1) The following diagram represents a titration curve of histidine as pH increases; pKa = 1.82 represents the terminal carboxylic acid group. pK, represents the terminal amino group: 6.0 r...
(1) The following diagram represents a titration curve of histidine as pH increases; pKa = 1.82 represents the terminal carboxylic acid group. pK, represents the terminal amino group: 6.0 represents the R-group, and pK, E 9.17 7.59 pH 182 3.0 20 10 H (equivalents) At what point on the diagram is histidine predominantly present as the following species? COO A, at pH < 1.82 B. between pH 1.82 and pH 6.0 C) between pH 6.0 and pH 9.17 D. at...
1. What amino acids do the following abbreviations stand for? Draw the structure of each. a)...
1. What amino acids do the following abbreviations stand for? Draw the structure of each. a) lle b) Thr c) Gin 2. Name and draw the structures of the amino acids that fit these descriptions: a) Contains an isopropyl group b) Contains a secondary alcohol group 3. Which of the following objects is chiral? a) A pair of scissors b) A comb c) A drinking glass 4. What does the term achiral mean? Give two examples involving organic structures.. 5....
α-Helices are often membrane spanning structures, that are typically 18-21 amino acids long. What would be...
α-Helices are often membrane spanning structures, that are
typically 18-21 amino acids long. What would be the effect of a
mutation that results in the replacement of 4 valines in the middle
of this helix, by 2 lysines and a 2 histidines? Use figure 5.14
(inserted below) to answer this question.
Noraside in hydrophobic side chain group HON CH CHCH CH CH, CH CM CH HC-01 HUN MN- WN H Glor Maine TALAJ Weline Valor Leucine O hole ale or...
____ 1. The diagram below represents serine, a polar, uncharged amino acid. Which functional group gives...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
(18 pts) Answer True or False for each of the following questions (a) An amino acid...
(18 pts) Answer True or False for each of the following questions (a) An amino acid is in the zwitterionic form only if the pll is well below 7 (b) Salting out takes advantage of the fact that the solubility of proteins varies with concentration. (c) Proteins usually consists of amino acids of both L-isomers (d) Essentially all a-helices found in proteins are left-handed globular protein is thermodynamically the most stable structure. ( Isoclectric focusing can be used to separate...
Lecture 3 Identify amino-/carboxy termini, and R-group on amino acid What is chirality? Identify a carbon that is chiral (i.e., has 4 different groups attached) Chiral compounds rotate plane polarized light Memorize amino acid 1) structure, 2) classification (hydrophobic, aliphatic, aromatic, negatively charged, positively charged, polar uncharged) Be able to draw glycine (the generic amino acid) Given an amino acid structure and pKas of ionizable groups, be able to determine the charge at pH 1, pH 14, and pH 7...
Fill in the blanks for each amino acid
Amino Acid Properties Name of R-group Properties Amino Acid Type of Polarity pKa Charge at Special functional group pH-7 Properties (hn(wpp)amgies applicable) (whpee Alanine Arginine Asparagine Aspartate Carboxyl Polar 3.9 Sulfhydryl Polar N/A Forms S-S Glutamine Glutamate Histidine Isoleucine Lysine Methionine Phenylalanine Aromatic Non-Polar Absorbs G@ 280 nm N/A Proline Can be Serine Threonine Tryptophane Tyrosine Valine
1) Which of the following is an amino acid? A) e R-CH-CH2-C00R -CH-CooR -CH-C-CO ile R-CH-C-NH3 R-C=CH-Coo NH3 NH3 NH3 ONH 3 D) coo B) E) 2) Which of the following amino acids has a sulfur in the R group? A) serine B) cysteine C) asparagine D) tyrosine E) leucine 3) Which of the following terms describes the side chain of valine? A) acidic B) basic C) charged, polar D) uncharged, polar E) nonpolar 4) Which of the following is...
With this information what is the PH of the .1 M
acetic acid sol and .1 M acetic acid buffer sol? Please help
solutions to observe that buffers resist pH changes. Burette readings should be made to the nearest 0.1 mL (or 0.05 mL if possible), A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate ion (typically added as sodium acetate). For acetic acid, pK, = -log (1.8 x 10-)...
"R" group polarity nonpolar, polar, or polar with H-
bonds.
1. choose any two know amino acids with similar Rf and based on the
size and polarity of their side chains, give an explanation for why
their retention factors are similar.
2. choose any two known amino acids with very different Rf values
and based on the size and polarity of their side chains, give an
explanation for why their retention factors are dissimilar.
3. Explain why lysines Rf is...
(1) The following diagram represents a titration curve of histidine as pH increases; pKa = 1.82 represents the terminal carboxylic acid group. pK, represents the terminal amino group: 6.0 represents the R-group, and pK, E 9.17 7.59 pH 182 3.0 20 10 H (equivalents) At what point on the diagram is histidine predominantly present as the following species? COO A, at pH < 1.82 B. between pH 1.82 and pH 6.0 C) between pH 6.0 and pH 9.17 D. at...
1. What amino acids do the following abbreviations stand for? Draw the structure of each. a) lle b) Thr c) Gin 2. Name and draw the structures of the amino acids that fit these descriptions: a) Contains an isopropyl group b) Contains a secondary alcohol group 3. Which of the following objects is chiral? a) A pair of scissors b) A comb c) A drinking glass 4. What does the term achiral mean? Give two examples involving organic structures.. 5....
α-Helices are often membrane spanning structures, that are
typically 18-21 amino acids long. What would be the effect of a
mutation that results in the replacement of 4 valines in the middle
of this helix, by 2 lysines and a 2 histidines? Use figure 5.14
(inserted below) to answer this question.
Noraside in hydrophobic side chain group HON CH CHCH CH CH, CH CM CH HC-01 HUN MN- WN H Glor Maine TALAJ Weline Valor Leucine O hole ale or...
____ 1. The diagram below represents serine, a polar, uncharged
amino acid. Which functional group gives serine its
distinct property?
a. H3
b. CH2OH
c. –H
d. COO–
____ 2. The monomers shown below are monomers for which of the
following natural polymers?
a. polysaccharides
b. plastics
c. DNA
d. proteins
____ 3. Which of the following processes illustrates the production
of a protein?
a. specific code for amino acids --> amino acid chain -->
gene --> DNA --> specific...
(18 pts) Answer True or False for each of the following questions (a) An amino acid is in the zwitterionic form only if the pll is well below 7 (b) Salting out takes advantage of the fact that the solubility of proteins varies with concentration. (c) Proteins usually consists of amino acids of both L-isomers (d) Essentially all a-helices found in proteins are left-handed globular protein is thermodynamically the most stable structure. ( Isoclectric focusing can be used to separate...
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