Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 2, Problem 25P
Interpretation Introduction
Interpretation:
There are number of proteins with hydrophilic exteriors as well as hydrophobic interiors. Whether due to this structure of protein it is embedded in the membrane’s hydrophobic interior or not needs to be explained.
Concept introduction:
Amino acids are organic compounds containing amino as well as
Here, R group is different for different amino acids. This group can be acidic, basic or neutral.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Part I. Protein structure
You have the toy model for a protein in the water (W) environment
of the cell shown.
a) How many residues (amino acids) does this toy protein have?
b) How many hydrophobic (H), hydrophilic (P), and charged (C)
residues are there?
c) Sketch the molecule on your answer sheet and then show the
positions of the favorable C-C (charge-charge) interactions
on the figure.
[Membrane Proteins] Based on the figure provided, What classification best describes G-proteins?
Integral Membrane Proteins
Peripheral Membrane Proteins
Lipid-Anchored Proteins
Soluble Cytosolic Proteins
Most proteins have hydrophilic exteriors and hydrophobic interiors. Would you expect this structure to apply to proteins embedded in the hydrophobic interior of a membrane? Explain.
Chapter 2 Solutions
Biochemistry
Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10P
Ch. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16PCh. 2 - Prob. 17PCh. 2 - Prob. 18PCh. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Prob. 24PCh. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - Prob. 37P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
- Plant cell walls contain which of the following in abundance? starch cellulose glycogen lactosearrow_forwardDistinguish between transmembrane proteins, integral proteins, and peripheral proteins. 7. Integral proteins are often found spanning the membrane of a cell or organelle. These proteins serve as channels for specific molecules to travel through the membrane, either into or out of the cell. Indicate on the picture of the integral protein where you would most likely find amino acids with hydrophobic R-groups. Next, indicate on the picture of the integral protein where you would most likely find amino acids with hydrophilic R-groups. Explain your reasoning.arrow_forwardChoose the best answer 1) If the lipid bilayer in Section B represents the plasma membrane, which part of the protein is the cytoplasmic domain? There is no way to tell which is the cytoplasmic domain with the information given. Section A is the cytoplasmic domain since it contains disulfide bonds. Section C is the cytoplasmic domain since the N-terminus is always found in the cytoplasm. Section C is the cytoplasmic domain since glycosylation cannot occur on the cytoplasmic domain. Section B is the cytoplasmic domain since it is an alpha-helix. 2) Which type of amino acids is most commonly found in Section B? Hydrophilic Hydrophobic There is no way of knowing which type of amino acids is most commonly found in Section B with the given information Charged 3) If the lipid bilayer in Section B represents the ER membrane, which part of the protein is found INSIDE the ER (in the ER lumen)? The entire protein must be inside the lumen of the ER. Section C is inside the ER…arrow_forward
- 18 The image below shows the different interactions responsible for the spontaneous folding of a protein molecule. Identify which interactions are involved for each labelled region 0-H H CH,OH CH, NH, 0 B O-H--OO CH, CH₂ A B D C A यह मह CH CH₂COOH C H CH, CH, CH, CH H--O=C D T (CHJANH, - interactions ion-dipole interaction Hydrogen bonding Hydrophobic interactions Disulfide bonds lon-ion interaction 18arrow_forwardOe. Lactose, maltose 17 Water can be converted from the liquid status to gas/vapor by high temperature (100°C), which of the following are responsible for increasing the boiling point of water molecule? ut of Select one: O a. Covalent bond and adhesion nestion O b. Hydrogen bond and cohesion O c. Hydrogen bond and salt formation O d. lonization and cohesion O e. Covalent bond and adhesion Protein conformation depends on the... Select one: of O a. R groups of the composing amino acids O b. Carboxyl group COOH ion O c. Number of peptide bonds O d. Phosphate group O e. Amino group NH2arrow_forward10 This level of protein structure involves regular patterns within a protein chain held by hydrogen bonding. Choose the correct level of protein structure: primary secondary tertiary quaternaryarrow_forward
- Thinking about cell membranes. a) The fatty acid tails of the phospholipids that make up cell membranes canbe either saturated or unsaturated. Which type of lipid will lead to a membranewith more mechanical strength? Explain your answer. b) One difference between bacterial and eukaryotic membranes is the presenceof cholesterol in eukaryotic membranes. What is the structure of cholesterol?Explain how adding cholesterol to a phospholipid membrane will affect thestability of the membrane. c) “Anammox” bacteria are unique in that they can perform anaerobic ammoniaoxidation, or the production of nitrogen gas from ammonia (Damasté et al. Nature2002, 419, 708.). Intermediates along this reaction pathway include hydrazine(N2H4) and hydroxylamine (NH2OH), both of which are extremely toxic to the cell.The ammonia oxidation reactions are believed to occur inside a membrane-bound structure within the cell called the “anammoxosome.” The structure of oneof the lipids of the anammoxosome is shown…arrow_forwardgure 3.1 Animation: The Plasma Membrane Peripheral protein Cholesterol Integral protein Glycoprotein Hydrophilic head Hydrophobic tail Suhmitarrow_forwardMAIN IDEA: Proteins are complex polymers. They have primary, secondary, tertiary, and quaternary levels of structure, which contribute to their functions. Some proteins require non-protein components, called prosthetic groups, to function properly. 3. Order the following elements of protein from simplest to most complex: protein, peptide, polypeptide, R-group, amino acid. T MELarrow_forward
- (a). Phospholipids are amphipathic molecules which have hydrophilic and hydrophobic regions. Explain how this feature benefits the cell. (Give ONE reason) (2) (b). Give ONE difference between a saturated phospholipid and an unsaturated phospholipid. (2)arrow_forwardProtein Concept Map Add these terms to your concept map should include these concepts and details: Structure (functional groups, shape); Monomer; Linkage; Properties; Functions; Key terms from the Partial List of Key Terms from the Minds Partial List of Key Terms essential amino acid amino acid side group/R-group peptide bond polypeptide receptor neurotransmitter hormone secondary structure tertiary structure quaternary structure fair test hydrophobic hydrophilic intermolecular force of attractionarrow_forwardImage analysis. The outer boundary of the cell is the plasma membrane.In the image below, molecules that cannot cross the membrane are glucose and ions.Why can't they cross the membrane? [MA] (c) (d) (a) Small uncharged molecules (b) Lipid-soluble Water-soluble substances lons substances Glucose Hydrocarbon Nat K+ H20 CO2 H+ cF Cat+ NH3 O They are hydrophobic O They are hydrophilic O large O Na, K, Ca and H ions will bind with phosphate Chloride ions will be repelled by phosphate they are small in size toarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license