Proteins

1. 1Which of the following is correct?
   

   1. AAn essential amino acid must be included in diet & cannot be formed in the body.
   2. BWe can synthesize essential amino acids
   3. CThere are 20 essential amino acids.
   4. DPhenylalanine is a nonessential amino acid.
   5. EEssential amino acids do not contain nitrogen
2. 2Which of the following are ALL essential amino acids?
   

   1. Avaline, isoleucine and leucine
   2. Btryptophan, glutamate and arginine
   3. Cphenylalanine, tryptophan and methionine
3. 3Which of the following accounts for the differences between different amino acids?
   

   1. Athe amine group
   2. Bthe side chain
   3. Cthe acid group
4. 4Most of the nitrogen lost from the body is in the form of
   

   1. Aurea
   2. Bfaeces
   3. Cammonia
   4. Duric acid
   5. Eglycogen
5. 5Which of these should be in positive nitrogen balance?
   

   1. Achildren
   2. Byoung healthy adult male
   3. Cpregnant woman
6. 6The alpha helix and beta pleated sheets represent which level of protein structure:
   

   1. Aprimary structure
   2. Btertiary structure
   3. Csecondary structure
   4. Dpentiary structure
   5. Equaternary structure
7. 7The “primary structure” of a protein refers to
   

   1. AThe alpha helix or beta pleated sheets
   2. BThe weak aggregation of two or more polypeptide chains into one functional macromolecule
   3. CCoiling due to hydrogen bonding between amino acids
   4. DInteractions among the side chains or R groups of the amino acids
   5. EThe sequence of amino acids
8. 8The overall three dimensional shape of a single polypeptide is called
   

   1. ATertiary structure
   2. BPrimary structure
   3. CDouble helix
   4. DQuaternary structure
   5. ESecondary structure
9. 9Which of the following are ALL essential amino acids?
   

   1. Avaline, glutamine and serine
   2. Btryptophan, phenylalanine and glutamate
   3. Cmethionine, threonine and lysine
   4. Dglycine, arginine and ornithine
10. 10Which of the following is true?
    

    1. AUrea salvage is important for maintaining nitrogen balance.
    2. BKim consumes more nitrogen than she loses; she is in negative nitrogen balance.
    3. CMost nitrogen in the human diet comes from creatinine.
    4. DNitrogen balance depends solely on nitrogen loss.

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Final Exam Food and Nutrition 1 Quiz sobre Proteins, criado por A Jones em 08-05-2016.

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A Jones

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