Homework Answers
In an amino acid (except glycine), there is a chiral carbon (because four different groups are attached to that carbon) so two enantiomers of the amino acid can exist i.e. D- (dextrorotatory) and L-(laevorotatory) forms. But only the L-form of the amino acid can be utilised by the cells to produce proteins. So option b. is correct.
Please see:
Dextrorotatory enantiomer can rotate plane of polarised light passing through it to the right whereas laevorotatory enantiomer can rotate plane of polarised light passing through it to left.
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The amino acids which occur in most proteins are a. none. b. all of the L-form....
Which of the following is NOT true of amino acids? a) link together to form proteins...
Which of the following is NOT true of amino acids? a) link together to form proteins b)are part of fatty acids c)can be used for energy or to make glucose d)contain N (Nitrogen) e)some are essential
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor...
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor D amino acids both L and D amino acids D-amino acids Question 2 (1 point) o be Polar R groups, along with acidic and basic R groups are said Question 2 (1 point) Polar R groups, along with acidic and basic R groups, are said to be.because the are attracted to water molecules. hydrophobic hydrophilic ionized unreactive Question 3 (1 point) Which of the...
All amino acids in proteins are Select one: O a. alpha-amino acid O b. (R)-amino acids...
All amino acids in proteins are Select one: O a. alpha-amino acid O b. (R)-amino acids c. acidic O d chiral
All amino acids in proteins are Select one: O a. (R)-amino acids b. chiral c. alpha-amino...
All amino acids in proteins are Select one: O a. (R)-amino acids b. chiral c. alpha-amino acid O 0 d. acidic
Which of the following molecules can exhibit enzymatic activity? (a) amino acids and proteins (b) proteins...
Which of the following molecules can exhibit enzymatic activity? (a) amino acids and proteins (b) proteins and RNA (c) RNA and aminoacids (d) DNA and proteins (e) Lipids and proteins
In nature, which is the most commonly found isomer, L-amino acids or D-amino acids? O D-amino...
In nature, which is the most commonly found isomer, L-amino acids or D-amino acids? O D-amino acids L-amino acius Submit Request Answer
Proteins: please don't answer if you are not sure 1. Draw the 20 amino acids a...
Proteins: please don't answer if you are not sure 1. Draw the 20 amino acids a )Draw the alanine and show the chiral forms b) Draw the formation of the peptide bond c) What enzyme forms the peptide bond? d) which amino acids might function in catalysis? e) show (draw) the entry of nitrogen into the biosphere f) Show (draw) the entry of ammonia into the amino acids by glutamine synthetase g) Show the transamination reaction h) Draw the road...
Which of the following is NOT a dehydration synthesis reaction? a. amino acids forming proteins b....
Which of the following is NOT a dehydration synthesis reaction? a. amino acids forming proteins b. glycogen forming glucose molecules c. nucleotides forming DNA d. glucose units forming starch e .fatty acids and glycerol forming a fat 2) The monomer of a protein is a(n) monosaccharide. nucleotide. peptide. glycerol and three fatty acids. amino acid. 3) A starch molecule is to glucose as a protein is to a polypeptide. DNA is to an amino acid. a lipid is to nucleic...
Which of the following amino acids can form crosslinks in proteins or cyclize peptides? C S...
Which of the following amino acids can form crosslinks in proteins or cyclize peptides? C S T M
1. Which of the following is not true of amino acids? a) Your intestines do not...
1. Which of the following is not true of amino acids? a) Your intestines do not absorb proteins, only the amino acids released by hydrolysis of these proteins. b) A normal, natural, unprocessed diet does not contain proteins, only the free amino acids. c) Amino acids are NEEDED for making your proteins. d) Amino acids are NEEDED for making the nitrogenous bases of your nucleic acids. e) In you, amino acids are not stored as protein. 2. Which of the...
Question 1 (1 point) Amino acids used in proteins generally are L-amino acids neither L nor D amino acids both L and D amino acids D-amino acids Question 2 (1 point) o be Polar R groups, along with acidic and basic R groups are said Question 2 (1 point) Polar R groups, along with acidic and basic R groups, are said to be.because the are attracted to water molecules. hydrophobic hydrophilic ionized unreactive Question 3 (1 point) Which of the...
All amino acids in proteins are Select one: O a. alpha-amino acid O b. (R)-amino acids c. acidic O d chiral
All amino acids in proteins are Select one: O a. (R)-amino acids b. chiral c. alpha-amino acid O 0 d. acidic
In nature, which is the most commonly found isomer, L-amino acids or D-amino acids? O D-amino acids L-amino acius Submit Request Answer
1. Which of the following is not true of amino acids? a) Your intestines do not absorb proteins, only the amino acids released by hydrolysis of these proteins. b) A normal, natural, unprocessed diet does not contain proteins, only the free amino acids. c) Amino acids are NEEDED for making your proteins. d) Amino acids are NEEDED for making the nitrogenous bases of your nucleic acids. e) In you, amino acids are not stored as protein. 2. Which of the...
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