Biology Final Lab

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Author:
Anonymous
ID:
120760
Filename:
Biology Final Lab
Updated:
2011-12-04 18:03:09
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11
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Description:
Protein Synthesis
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  1. Why does the cell get a message in protein synthesis?
    to make a certain quantity of a specific protein.
  2. What does the DNA molecule do in protein synthesis?
    a portion of it unwinds to expose the gene responsible for that protein.
  3. What do nucleotides do in protein synthesis?
    uses the help of enzymes, moving along one strand of the exposed gene and form a molecule of RNA.
  4. what chromosome does the chromosome "u" pair with on the strand RNA?
    "A"
  5. How are the copies of m-RNA made?
    according to the quantity of the order. it leaves the nucleus and enter the cytoplasm through the nuclear pores
  6. What do the ribosomes do that copies the m-RNA?
    The RNA binded with the ribosomes to read 3 nucleotide bases at a time.
  7. What is a transfer RNA molecule?
    has 2 ends, one has a specific binding site fora particular amino acid; the other side has a particular sequence of 3 nucleotides
  8. How does the transfer RNA molecule help with copies?
    the appropriate t-RNA attaches to and carries the activated amino acid to the ribosome.
  9. What do the two amino acids do that the transfer RNA leaves the site?
    they form a peptide bonds using ATP as its energy source.
  10. What does the polypeptide chain do at the end of the protein synthesis process?
    folds into its final conformation and it is completed and released
  11. What happens to M-RNA when the protein production is complete?
    it is recycled; the nucleotides can be used in other processes.

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