Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Textbook Question
Chapter 4.4, Problem 3CC
WHAT IF? Imagine a protein that functions in the ER but requires modification in the Golgi apparatus before it can achieve that function. Describe the protein’s path through the cell, starting with the mRNA molecule that specifies the protein.
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Multipass transmembrane proteins synthesized by ribosomes on the rough endoplasmic reticulum generally have which of the following arrangements of start-transfer and stop-transfer signals?
multiple start signals and multiple stop signals (to allow multiple transmembrane regions)
multiple start signals, but only one stop signal (to allow only one transmembrane region)
only one start signal, but multiple stop signals (to allow only one transmembrane region)
only one start signal, and only one stop signal (to allow only one transmembrane region)
only one stop signal, and only one start signal (to allow only one transmembrane region)
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Order+the+following+of+protein+sentesis+sequence+from+earliest: (a)tRNA molecule bring specific amino acids to he mRNA molecule. b)mRNA nucleotides join with exposed DNA bases and form a molecule of mRNA.(c)The two stands of a DNA molecule separate. (d)Peptide bonds form between the amino acids. (e)the mRNA molecule leave the nucleus. (f) a ribosome attached to the mRNA molecule.
Chapter 4 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 4.1 - Prob. 1CCCh. 4.1 - Prob. 2CCCh. 4.2 - Briefly describe the structure and function of the...Ch. 4.2 - Prob. 2CCCh. 4.3 - What role do ribosomes play in carrying out...Ch. 4.3 - Describe the molecular composition of nucleoli,...Ch. 4.3 - WHAT IF? As a cell begins the process of dividing,...Ch. 4.4 - Describe the structural and functional...Ch. 4.4 - Describe how transport vesicles integrate the...Ch. 4.4 - WHAT IF? Imagine a protein that functions in the...
Ch. 4.5 - Describe two characteristics shared by...Ch. 4.5 - Prob. 2CCCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - WHAT IF? Males afflicted with Kartageners syndrome...Ch. 4.7 - In what way are the cells of plants and animals...Ch. 4.7 - Prob. 2CCCh. 4.7 - MAKE CONNECTIONS The polypeptide chain that makes...Ch. 4 - Which structure is not part of the endomembrane...Ch. 4 - Which structure is common to plant and animal...Ch. 4 - Which of the following is present in a prokaryotic...Ch. 4 - Prob. 4TYUCh. 4 - Cyanide binds to at least one molecule involved in...Ch. 4 - What is the most likely pathway taken by a newly...Ch. 4 - Which cell would be best for studying lysosomes?...Ch. 4 - DRAW IT From memory, draw two eukaryotic cells....Ch. 4 - SCIENTIFIC INQUIRY In studying micrographs of an...Ch. 4 - FOCUS ON EVOLUTION Compare different aspects of...Ch. 4 - FOCUS ON ORGANIZATION Considering some of the...Ch. 4 - Prob. 12TYU
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- Molecular Transport Across Membranes Workshop How does the cell membrane control movement of materials? The cellular membrane is critical to the maintenance of homeostasis in living organisms. The cell membrane separates the cell from the external environment and plays a critical role in regulating movement of material in and out of the cell. Additionally, eukaryotic cells are made complex by the presence of internal membranes that form organelles, so the cells may become specialized. These organelle membranes create compartments within the cell that can do specific functions. For this exercise, you will work in groups of four to progress through the activities. At the end of each activity, one group (chosen at random) will share how they responded and open the floor for further discussion. Model 1 - Types of Ions and Molecules in a Cell Type 4 Molecules Molecular oxygen (O,): Туре 1 Ions Type 2 Molecules Туре 3 Molecules Glucose: Water: Potassium: K* OH 0=0 D Sodium: Na+ + O- Urea:…arrow_forwardPart 2 of 3: Additionally, describe how the protein is being processed and where Protein: B-hexoaminidase Location: Lysosomearrow_forwardMembrane Protein Insertion in the ER This figure displays five small hypothetical proteins. The a-helix secondary structure of the protein is bracketed and the number of amino acids in the helix is indicated. If the hypothetical ER localization sequence is green-yellow-yellow-green-yellow-red, what protein could potentially be a transmembrane protein in the plasma membrane? = Acidic = Basic = Polar (uncharged) O = Hydrophobic CO₂ T 20 CO2 T 20 NH₂ A. T 20 NH₂ B. NH₂ C. T 20 NH₂ D. NH₂ E. tot 10arrow_forward
- is this correct? How to know mRNA and tRNA properly?arrow_forwardListen 96 73 Membranes and the Export of Proteins Key Idea: The synthesis, packaging and movement of functional. This modification takes place in the rough macromolecules inside the cell involves coordination between several membrane-bound organelles. Many proteins need to be modified in order to become before packaged and shipped to its final destination. endoplasmic reticulum (rER). From the rER, proteins are transported to the Golgi where the protein is further modified As it enters the cisternal space inside the ER, it falds up into its correct 3-dimensional shape. Ribosomes on the surface of the endoplasmic reticulum (ER) translate MANA into a polypeptide chain. Most proteins destined for secretion are glycoproteins (.e. they are proteins with carbohydrates added to them). Attachment of Ribosome carbohydrate to the protein by enzymes (glycosylation) occurs in the rER. Proteins destined for The chain is threaded through secretion leave the ER the ER membrane into the cisternal…arrow_forwardOr. Foyez Samar The volume enclosed by the plasma membrane of plant cells is often much larger the c corresponding volume in animal cells. The most regsengble explanation for this observation Is that A) plant cells are capable of having a much higher surface-to-volume ratio than animal cells. B) plant cells have a much more highly convoluted (folded) plasma membrane than animal cens. C) plant cells contain a large vacuole that reduces the volume of the cytoplasm. D) animal cells are more spherical, whereas plant cells are elongated. 12 A uarrow_forward
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