Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 16MC
The RNA species that travels from the nucleus to the cytoplasm carrying the coded message specifying the sequence of amino acids in the protein to be made is (a) mRNA, (b) tRNA, (c) rRNA, (d) all of these.
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During protein synthesis, one amino acid binds to RNA
molecules.
a) What is this RNA molecule?
b) Draw an example of this binding process
A section of the mRNA has a nucleotide sequence of CUATAUGUTGU. How many codons does this segment of mRNA represent?
a) two,
b) one,
c) four,
d) three,
e) none, this molecule is not a transcript of DNA
which statement about genetic code is not true?
A) mRNA is read 3 bases at a time, which are called codons. B) There is one initiator codon that codes for an amino acid. C) Each amino acid is coded for by only one codon. D) There are 3 termination codons that do not code for amino acids. E) Each codon is specific for only one amino acid.
An anion has an equilibrium potential of -40 mV. What direction are the chemical and electrical forces acting on the anion at the resting membrane potential (-70 mV)?
A) Both the chemical and electrical forces are directed out of the cell. B) The chemical force is directed out of the cell and the electrical force is directed into the cell. C) The chemical force is directed into the cell and the electrical force is directed out of the cell. D) There is insufficient information to answer this question. E) Both the chemical and electrical forces are directed into the cell.
Chapter 3 Solutions
Anatomy & Physiology (6th Edition)
Ch. 3.1 - Summarize the four key points of the cell theory.Ch. 3.1 - How would you explain the meaning of a generalized...Ch. 3.2 - What basic structure do all cellular membranes...Ch. 3.2 - What is the importance of the glycocalyx in cell...Ch. 3.2 - Prob. 3CYUCh. 3.2 - Phospholipid tails can be saturated or unsaturated...Ch. 3.3 - What is the energy source for all types of...Ch. 3.3 - What determines the direction of any diffusion...Ch. 3.3 - What are the two types of facilitated diffusion...Ch. 3.4 - What happens when the Na+-K+ pump is...
Ch. 3.4 - As a cell grows, its plasma membrane expands. Does...Ch. 3.4 - Prob. 3CYUCh. 3.4 - Which vesicular transport process allows a cell to...Ch. 3.5 - What process establishes the resting membrane...Ch. 3.5 - Is the inside of the plasma membrane negative or...Ch. 3.6 - What term is used to indicate signaling chemicals...Ch. 3.7 - Which organelle is the major site of ATP...Ch. 3.7 - What are three organelles involved in protein...Ch. 3.7 - Compare the functions of lysosomes and...Ch. 3.7 - How are microtubules and microfilaments related...Ch. 3.7 - Prob. 21CYUCh. 3.8 - Prob. 22CYUCh. 3.9 - If a cell ejects or loses its nucleus, what is its...Ch. 3.9 - What is the role of nucleoli?Ch. 3.9 - What is the role of nucleoli?Ch. 3.10 - If one of the DNA strands being replicated reads...Ch. 3.10 - During what phase of the cell cycle is DNA...Ch. 3.10 - What are three events occurring in prophase that...Ch. 3.11 - Codons and anticodons are both three-base...Ch. 3.11 - How do the A, P, and E ribosomal sites differ...Ch. 3.11 - What is the role of DNA in transcription?Ch. 3.12 - What is the importance of ubiquitin in the life of...Ch. 3.12 - Prob. 2CYUCh. 3 - The smallest unit capable of life by itself is (a)...Ch. 3 - Prob. 2MCCh. 3 - Prob. 3MCCh. 3 - The term used to describe the type of solution in...Ch. 3 - Osmosis always involves (a) a selectively...Ch. 3 - Prob. 6MCCh. 3 - Prob. 7MCCh. 3 - The endocytotic process in which a sampling of...Ch. 3 - Prob. 9MCCh. 3 - The nuclear substance composed of histone proteins...Ch. 3 - The information sequence that determines the...Ch. 3 - Mutations may be caused by (a) X rays, (b) certain...Ch. 3 - The phase of mitosis during which centrioles each...Ch. 3 - Final preparations for cell division are made...Ch. 3 - The RNA synthesized on one of the DNA strands is...Ch. 3 - The RNA species that travels from the nucleus to...Ch. 3 - If DNA has a sequence of AAA, then a segment of...Ch. 3 - A nerve cell and a lymphocyte are presumed to...Ch. 3 - Prob. 19MCCh. 3 - Explain why mitosis can be thought of as cellular...Ch. 3 - Contrast the roles of ER-bound ribosomes with...Ch. 3 - Cells lining the trachea have whiplike motile...Ch. 3 - Name the three phases of interphase and describe...Ch. 3 - Comment on the role of the sodium-potassium pump...Ch. 3 - Differentiate between primary and secondary active...Ch. 3 - Cell division typically yields two daughter cells,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Briefly describe the function of the following in protein synthesis: a) rRNA, b) tRNA c) mRNAarrow_forwardWhich of the following is NOT true regarding the genetic code and translation? a) An mRNA is typically translated in only 1 reading frame. b) There are 64 different codons. c) Multiple amino acids may be coded for by a single codon. d) mRNA sequence is the reverse complement of the template strand of DNA.arrow_forwardA triplet of bases on an mRNA molecule is known as a(n) A) amino acid. B) anticodon. C) codon. D) ribosome-binding sequence.arrow_forward
- If a protein is made up of 1000 amino acids 1) How many nucleotides will its mRNA contain between (and including) the start and stop codon? _____ 2) How many codons will this mRNA contain? _____ 3) How many tRNA molecules will be needed to make that protein? _____arrow_forwardSuppose that a DNA segment has the following nucleotide sequence: CTC ATA CGA TTC AAG TTA. Which of the following nucleotide sequences would be found in a complementary mRNA strand? (a) GAG UAU GAU AAC UUG AAU. (b) GAG TAT GCT AAG TTC AAT. (c) GAG UAU GCU AAG UUC AAU. (d) GUG UAU GGA UUG AAC GGU.arrow_forwardIf Kd= 100 nM, [RNA] = 10 nM, and [protein] = 1 uM a) What fraction of RNA is bound? b) What fraction of protein is bound? c) What is the concentration of the protein:RNA complex? d) Is it reasonable to assume that total protein = free protein? e) Is it reasonable to assume that total RNA = free RNA?arrow_forward
- (a) Describe the different stages that process of Protein synthesis. (b) using four examples of antibiotic inhibitors of translation, outlinehow the inhibition occurs.arrow_forwardThe RNA synthesized on one of the DNA strands is (a) mRNA, (b) tRNA, (c) rRNA, (d) all of these.arrow_forwardFor translation of eukaryotic mRNA sequences: a) The stop codon stops translation by blocking the ribosome. b) The tRNA is the same thing as the amino acid. c) There are two binding pockets within the ribosome where different tRNAs will bind to the mRNA. d) The first codon that is recognized by the ribosome is UAG e) The ribosome can bind to the mRNA in any location.arrow_forward
- When the ribosome "reads" the codon UAG, UGA or UAA... A) the polypeptide is released from ribosome but ribosome continues reading the mRNA B) the proper tRNA enters the ribosome C) translation begins D) polypeptide is released from the ribosome and translation endsarrow_forwardThe sequence A is read by RNA polymerase to produce an mRNA that is translated by the ribosome: Choose the sequence that would correspond to that mRNA. A: 3’ – TACGGAACG – 5’ B) 3’ – AUGCCUUGC – 5’ C) 5’ – AUGCCUUGC – 3’ D) 3’ – UACGGAACG – 5’ E) 5’ – UACGGAACG – 3’arrow_forwardWhich statement below about mRNA is true? A)A gene's promoter sequence is transcribed into mRNA. B)Translation begins at the 5′ end of a molecule of mRNA C)mRNA is complementary to the coding strand of DNA. D)Some regions of mRNA are not translated into amino acids.arrow_forward
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