e) Draw a cartoon version of a lipidbilayer that illustrates the packing ofseveral phospholipids in a membrane.Label the hydrophobic and thehydrophilic portions of the bilayer.f) Mycobacteria have an additional outer membrane called a mycomembrane comprised of unique lipidscalled mycolic acids. These fatty acids contain 30 – 90 carbon atoms compared to the typical plasmamembrane fatty acids that contain 16 - 20 carbons. Based on these observations, which is more rigid andhas a higher melting point the mycomembrane or the plasma membrane? Explain your answer. RV. Phospholipids are the main structural lipids thatcomprise cellular and organellar membranes. Oneabundant phospholipid in bacterial cell membranes isphosphatidylethanolamine (PE), which has ageneric structure shown on the right. Note that R1 Rand R2 are representative alkyl chains of attachedfatty acids, each having about 16 – 20 carbon atoms.a) The overall net charge in one PE molecule is:-2 -1 0 +1 +2CH₂Phosphatidylethanolamine(PE)-CHH₂C.b) The glycerophosphate backbone in PE is a:D-enantiomerc) The fatty acids are attached to PE via which type of bond? amineL-enantiomerracemicNH3amide ester etherd) Draw the commonly used cartoonrepresentation of one phospholipid molecule.Label the hydrophilic and hydrophobic parts.

Hi! Thank you for the question. We are authorized to answer three subparts at a time, since you have…

e) Draw a cartoon version of a lipid bilayer that illustrates the packing of several phospholipids in a membrane. Label the hydrophobic and the hydrophilic portions of the bilayer. f) Mycobacteria have an additional outer membrane called a mycomembrane comprised of unique lipids called mycolic acids. These fatty acids contain 30-90 carbon atoms compared to the typical plasma membrane fatty acids that contain 16-20 carbons. Based on these observations, which is more rigid and has a higher melting point the mycomembrane or the plasma membrane? Explain your answer.

e) Draw a cartoon version of a lipid bilayer that illustrates the packing of several phospholipids in a membrane. Label the hydrophobic and the hydrophilic portions of the bilayer. f) Mycobacteria have an additional outer membrane called a mycomembrane comprised of unique lipids called mycolic acids. These fatty acids contain 30-90 carbon atoms compared to the typical plasma membrane fatty acids that contain 16-20 carbons. Based on these observations, which is more rigid and has a higher melting point the mycomembrane or the plasma membrane? Explain your answer.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter3: The Chemistry Of Life: Organic Compounds

Section3.1: Carbon Atoms And Organic Molecules

Problem 3C

See similar textbooks

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.
Peptides. 1. Draw the peptide Ala-Glu-Gly-Lys, as it would occur at physiological pH = 7.4. The R groups of Ala and Gly are not acidic or basic, therefore do not have a pka and the charge on these R groups is therefore independent of pH. Glu is acidic and Lys is basic, therefore the charge on these amino acids is pH dependent. The pKas are shown below. pKa N-term = 9.0 C-term = 3.5 Glu4.1 Lys = 10.5 2. Draw a circle around the peptide bonds. 3. Label the C-terminus and the N-terminus. 4. What is the overall charge on the peptide at pH 7.4?
11:14 structure. They provide the matrix or ground substance of extracellular tissue spaces in which collagen and elastin fibers are embedded. Hyaluronic acid, chondroitin 4-sulfate, heparin, are among the important glycosaminoglycans. 10. Glycoproteins are a group of biochemically important compounds with a variable composition of carbohydrate (1-90%), covalently bound to protein. Several enzymes, hormones, structural proteins and cellular receptors are in fact glycoproteins. Chapter 2: CARBOHYDRATES SELF-ASSESSMENT EXERCISES I. Essay questions 1. Define and classify carbohydrates with suitable examples. Add a note on the functions of carbohydrates. 2. Describe the structure and functions of mucopolysaccharides. 3. Give an account of the structural configuration of monosaccharides, with special reference to glucose. 4. Discuss the structure and functions of 3 biochemically important disaccharides. 5. Define polysaccharides and describe the structure of 3 homopolysaccharides. III. Fill…
Protein Structure and Function A common strategy in the regulation of protein function is to alter its structure. Describe two specific strategies used by the cell to alter a protein’s structure, thereby altering its function.
(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)
O d. Cooking oils e. Stearic acid (saturated fatty acids) Chitin, the structural polysaccharide forming the exoskeleton of arthropods has which of the following linkages Select one: O a. Hydrogen bonds O b. Glycosidic linkage between B glucose c. Ester linkage between a glucose O d. Ester linkage between B glucose O e. Glycosidic linkage between a glucose Finish attempt . e
Protein 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 attraction
Components of Complex Biomolecules Figure 1-10 (Lehninger's Biochemistry book) shows the major components of complex biomolecules. For each of the two important biomolecules below (shown in their ionized forms at physiological pH), identify the constituents. And show H-bonding with water. (a) Guanosine triphosphate (GTP), an energy-rich nucleotide that serves as a precursor to RNA: N- NH -CH2 0- NH2 H H H H. ОН ОН (b) Phosphatidylcholine, a component of many membranes: CH3 O- CH3*N-CH2-CH2-0-P-0–CH2 нн CH3 НС —О—С—(CH), —С—С— (CH), — СHз CH,–0-C-(CH,)14–CH3
Net charge Number of Identical Disulfide subunits Protein Molecular Weight at pH 7 subunits bonds 1 50,000 +3 1 No 50,000 (25,000 for each subunit) 2 -2 2 Yes No 25,000 Yes 100,000 (50,000 for each subunit) 4 -1 2 No Yes, between subunits 100,000 (25,000 for each subunit) 5 +2 4 No Yes, between all subunits
Describe, The negatively charged glycosaminoglycan polysaccharide chains establish a hydrated gel-like environment around the cell.
Choose Two. The Ramachandran plot indicates: B H Ca ||||||| Ⓒ. The C1 I A. Combined preference about both H しょしい O conformation preference for a C1-C² and c²_N bonde Existence of a peptide in an a-helical conformation Or P sheeted The prefered conformation about Can bond. The prefered conformation about C1-C² bond The prefesed conformation about peptide bond.
Oe. 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 NH2