Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 7SQ
Match the following molecules with the cellular process or processes in which they are primarily involved.
| a. ribosomes | 1. |
| b. tRNA | 2. Transcription |
| c. DNA polymerases | 3. Translation |
| d. RNA polymerase | |
| e. mRNA |
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Chapter 10 Solutions
Campbell Essential Biology (7th Edition)
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- Indicate the phase of protein synthesis during which each of the following processes occurs: a. A ribosomal subunit binds to a messenger RNA. b. The polypeptide is actually synthesized. c. The ribosome moves along the codon sequence. d. The ribosome dissociates into its subunits.arrow_forwardWhich of the following nucleic acids is a component of ribosomes? a.DNA b.Transfer RNA c.Ribosomal RNA d.Messenger RNAarrow_forwardSpecific amino acids attached to molecules of tRNA, while antocodons align with codons of mRNA describes, in part a.replication b.transcription c.translation d.recombinant DNA formation e.cellular activationarrow_forward
- Each of the following statements about protein synthesis is false.Correct each to make a true statement. a. In a gene, each nucleotide specifies one amino acid in a protein sequence. b. A transcription factor must bind to the promoter region of a gene before the enzyme DNA synthetase is able to bind and begin transcription. c. The enzyme RNA polymerase builds a strand of transfer RNA, whose codons are complementary to DNA’s triplets. d. Proteins destined for secretion from the cell enter the nucleus after translation, to be folded and modified. e. During translation, amino acids are delivered by the messenger RNA transcriparrow_forwardWhich of the following nucleic acids is a component of ribosomes? A. Ribosomal RNA B. Transfer RNA C. Messenger RNA D. DNAarrow_forwardDefine the following terms: a. proteasome b. ubiquitination c. ubiquitin-conjugating system d. ubiquitin ligase e. autophagyarrow_forward
- Which of the following processes assists cells in maintaining proteostasis (high-protein folding quality control)? a. preinitiation complex assembly b. autophagy c. nonstop-mediated polypeptide decay d. polypeptide proofreadingarrow_forwardSequence the following steps in protein synthesis from first to last. Write only the numbers (1-6) on space provided for; ____a. transcription ____b. tRNA amino acid ____c. amino acids separate from tRNA ____d. polypeptide chain assembled ____e. mRNA links to ribosome ____f. stop codon encountered in mRNAarrow_forwardWhich of the following exhibit(s) the "quaternary" structure of nucleic acids? a.ribosome b.histone c.tobacco mosaic virus d.nucleosomearrow_forward
- For each of the following, identify the type of RNA involved (mRNA, rRNA, or tRNA). a. Transports the correct amino acid to the ribosome, using the information encoded in the mRNA. b. Is a major component of ribosomes. c. Specifies the order of amino acids in a protein, using a series of three-base codons, where different amino acids are specified by particular codons. d. Contains a three-base anticodon that pairs with a complementary codon revealed in the mRNA. e. Assists in making the bonds that link amino acids together to make a protein.arrow_forwardWhich of the following enzymes adds a new amino acid to the growing chain of a protein during protein synthesis? a. aminoacyl-tRNA synthetase b. peptidyl synthetase c. peptidyl transferase d. ribosomal synthetasearrow_forwardWhich of the following steps in protein synthesis does not require a direct supply of energy? a. proofreading step by certain aminoacyl-tRNA synthetases b. translocation of mRNA in a ribosome c. linkage of an amino acid to its cognate tRNA d. alignment of a tRNA anticodon with an mRNA codonarrow_forward
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