Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 19PS
Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. How could you determine which versions alter the protein’s shape?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
HOW MANY DIFFERENT
PROTEINS CAN BE
CONSTRUCTED
THAT ARE
EXACTLY FOUR AMINO ACIDS
LONG? (HINT: THERE ARE 20
POSSIBLE AMINO ACIDS.)
Lactose permease, a protein of E. coli, is composed of a singlepolypeptide that is 417 amino acids in length. By convention, theamino acids within a polypeptide are numbered from the aminoterminalend to the carboxyl-terminal end. Are the following questionsabout lactose permease true or false?A. Because the sixty-fourth amino acid is glycine and the sixty- eighth amino acid is aspartic acid, the codon for glycine,64, is closer to the 3′ end of the mRNA than the codon for aspartic acid, 68.B. The mRNA that encodes lactose permease must be greater than1241 nucleotides in length.
Identify the parts of the heterotrimeric G-protein shown in the image.
B
Chapter 3 Solutions
Campbell Essential Biology (7th Edition)
Ch. 3 - One isomer of methamphetamine is the addictive...Ch. 3 - Monomers are joined together to form larger...Ch. 3 - Polymers are broken down into monomers through the...Ch. 3 - Prob. 4SQCh. 3 - When two molecules of glucose (C6H12O6) are joined...Ch. 3 - One molecule of dietary fat is made by joining...Ch. 3 - Prob. 7SQCh. 3 - Prob. 8SQCh. 3 - Prob. 9SQCh. 3 - Most proteins can easily dissolve in water. Where...
Ch. 3 - Prob. 11SQCh. 3 - A glucose molecule is to _____ as a nucleotide is...Ch. 3 - Name three similarities between DNA and RNA. Name...Ch. 3 - Prob. 14SQCh. 3 - For each statement, identify which major theme is...Ch. 3 - For each statement, identify which major theme is...Ch. 3 - Prob. 17IMTCh. 3 - Scientists at the U.S. Food and Drug...Ch. 3 - Imagine that you have produced several versions of...Ch. 3 - Prob. 20PSCh. 3 - Prob. 21BSCh. 3 - Heart disease is the leading cause of death among...Ch. 3 - Each year, industrial chemists develop and test...
Additional Science Textbook Solutions
Find more solutions based on key concepts
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (8th Edition)
Police Captain Jeffers has suffered a myocardial infarction. a. Explain to his (nonmedically oriented) family w...
Human Physiology: An Integrated Approach (8th Edition)
6. How can you use the features found in each chapter?
Human Anatomy & Physiology (2nd Edition)
On what molecule does the anticodon appear? Explain the role of this molecule in protein synthesis.
Human Physiology: An Integrated Approach (7th Edition)
Knowledge Booster
Learn more about
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
- Amino acids project from each polypeptide backbone in a β-sheet in an alternating fashion (oneabove the plane and the next below the plane – see Fig 3.8B). Consider the following proteinsequence: Leu-Lys-Val-Asp-Ile-Ser-Leu-Arg-Leu-Lys-Ile-Arg-Phe-Glu.a. Is there a pattern to these amino acids? If so, what is it? b. What does this sequence of amino acids mean for the hydrophobicity/hydrophilicity of theresulting β-sheet? c. Can you make a prediction about how the β-sheet will be arranged in higher levels of protein structure? If so, what prediction would you make?arrow_forwardBriefly describe the structural differences for each pair listed: A) Glycogen and Cellulose B) Lactose and Sucrosearrow_forwardThere are 20 standard amino acids and only 10 major monosaccharides in eukaryotes, yet there are so many more possible combinations of monosaccharides in a hexasaccharide than amino acids in a hexapeptide. Explain this observation.arrow_forward
- Proteins are essential to most processes in the human body. Given your understanding of the M phase of the life cycle, please discuss two different protein dependent processes associated with this phase. Make sure you provide specific details about the chosen processes.arrow_forwardis it true that aplha and beta are made up of same amino acids but Beta chain is longer than alpha chain？what is other difference and similarity？is the amino aicd sequence exactly the same as well？are their structure the same ？arrow_forwardWhich of the following amino acids is most likely to be found on the outside of a soluble protein, and which of them is more likely to be found on the inside? Explain each answer. (Hint: Consider the effect of the amino acidside chain in each case and that the protein is folded up into its globular form.)(a) Valine (b) Aspartate(c) Histidine (d) Alaninearrow_forward
- A particular amino acid contains a -CH2NH3+ group. Is this amino acid more likely to be found on the inside or outside of the folded protein? Briefly explain.arrow_forwardWhat type of protein is included in milk? When milk sourness occurs, why does this protein precipitate?Discuss the overall process or mechanisms that cause proteins to precipitate.What is the definition of amphoterism? Show the amphoteric property of protein using a chemical equation. Strictly no plagiarism. Please cite the references.arrow_forwardhow does the protein environment surrounding an amino acid chain affect its chemical properties?Consider the carboxyl group on an asparate side chain in the following environments in a protein. Rank in order these environments from the highest to the lowest proportion of carboxyl groups in the -COO- form.that is in terms of pKas. 1. an aspartate side chain on the surface of protein with no other ionizable groups nearby. 2. an aspartate side chain buried in a hydrophobic pocket on the surface of a protein 3. an asparate chain in a hydrophobic pocket adjacent to a glutamte side chain 4. an asparate side chain in a hydrophobic porket adjacent to a lysine side chain.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Macromolecules | Classes and Functions; Author: 2 Minute Classroom;https://www.youtube.com/watch?v=V5hhrDFo8Vk;License: Standard youtube license