1. In the degradation of amino acids in muscle NH4+ is carried to the liver for...
1. In the degradation of amino acids in muscle NH4+ is carried to the liver for conversion into urea by:
| A. asparagine. |
| B. any amino acid. |
| C. glutamine. |
| D. either alanine or glutamine. |
| E. alanine. |
Homework Answers
In muscles, the enzyme alanine aminotransferase transfers NH4+ (obtained from the deamination of amino acids) to pyruvate to form alanine, which is then transferred to the liver. The correct answer is the option E, i.e. alanine.
A similar process in brain and some other tissues transfers NH4+ to glutamate to form glutamine, which is then used in different biosynthetic pathways or transferred to the liver.
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1. In the degradation of amino acids in muscle
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14. The interorgan pathway that allows transport of nitrogen from muscle to the liver utilizes as an amino group acceptor in the transamination reaction generating A) acetyl-CoA; alanine B) acetyl-CoA; glutamine C) pyruvate; glutamine D) pyruvate; glutamate E) pyruvate; alanine
how to draw a phylogeny tree based on the information of amino acids in table 2...
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Question 2 (1 point) Amino acids can be classified as A. Hydrophobic amino acids with nonpolar...
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The chemical structures of the 20 standard amino acids at pH 7, along with their 3...
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1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f....
14. The interorgan pathway that allows transport of nitrogen from muscle to the liver utilizes as an amino group acceptor in the transamination reaction generating A) acetyl-CoA; alanine B) acetyl-CoA; glutamine C) pyruvate; glutamine D) pyruvate; glutamate E) pyruvate; alanine
how to draw a phylogeny tree
based on the information of amino acids in table 2 ?with
explanation please
by using the amino acid differences between the species in the
table, for example it can be seen that chimpanzees are similar to
humans .....
. S . FEE Table 2 Mitochondrial cytochrome oxidase subunit II (CO II) amino acids (aa) 1-30 of the 227 total aa for the primate species Lemur catta, Paio ursinus, Pan troglodytes, Hylobates lar, Homo sapiens,...
Question 2 (1 point) Amino acids can be classified as A. Hydrophobic amino acids with nonpolar R groups B. Polar amino acids with neutral R groups but the charge is not evenly distributed C. Positively charged amino acids with R groups that have positive charge at physiological pH. D. Negatively charged amino acids with R groups that have a negative charge at physiological pH. How would the amino acid alanine be classified? Think through your reasoning. L-Alanine H2N-CHC-OH CH3
The chemical structures of the 20 standard amino acids at pH 7, along with their 3 and 1 letter codes, are givern in alphabetical order below. While the oxygen and nitrogen atoms of the peptide bonds may serve as a donor atom to complex a metal ion, very often the ligands for the metal come from the amino acid side chains. Takea few moments to examine the chemical structures of the different side chains. Circle the side chains that you...
Font Ратауар 15. Excess essential amino acids may be stored as: a) proteins. b) glycogen. c) fats. d) a) and (or just) c, depending on the amino acid. e) b) and (or just) c, depending on the amino acid. 16. Some non-essential amino acids are non-essential because they are made in you but only: a) if certain essential amino acids are present in your diet. b) if pyruvate or certain TCA cycle intermediates are present in your diet. c) if...
1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f....
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