Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Question
Chapter 2, Problem 1VC
Summary Introduction
To explain:
Sterols can add “stiffness” to membranes that attach them.
Concept introduction:
Membranes are composed of the lipid bilayer of phospholipids with the polar head group facing towards the outside and non-polar fatty acid groups facing the interior of the cell.
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Chapter 2 Solutions
Microbiology: A Systems Approach
Ch. 2.1 - Explain the relationship between atoms and...Ch. 2.1 - Prob. 2AYPCh. 2.1 - Prob. 3AYPCh. 2.1 - Prob. 4AYPCh. 2.2 - Prob. 5AYPCh. 2.2 - Provide examples of cell components made from each...Ch. 2.2 - Prob. 7AYPCh. 2.2 - Prob. 8AYPCh. 2.2 - Name the nitrogen bases of DNA and RNA.Ch. 2.2 - Prob. 10AYP
Ch. 2.3 - Recall three characteristics common to all cells.Ch. 2 - The smallest unit of matter with unique...Ch. 2 - The ____ charge of a proton is exactly balanced by...Ch. 2 - Electrons move around the nucleus of an atom in...Ch. 2 - Bonds in which atoms share electrons are defined...Ch. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - Prob. 8MCQCh. 2 - DNA is a hereditary molecule that is composed of...Ch. 2 - Prob. 10MCQCh. 2 - Prob. 11TFCh. 2 - Prob. 12TFCh. 2 - Prob. 13TFCh. 2 - Prob. 14TFCh. 2 - Membranes are mainly composed of macromolecules...Ch. 2 - Support or refute the following statement: Double...Ch. 2 - Prob. 2CTQCh. 2 - Plant cell walk are composed of cellulose, a...Ch. 2 - Compare and contrast the kinds of chemical bonding...Ch. 2 - Prob. 5CTQCh. 2 - Prob. 1VCCh. 2 - Prob. 1CM
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- Which would move faster in thin layer chromatography?a) Beeswaxb) Phosphatidylinositolc) Cholesterold) Steroidarrow_forwardIn a micelle or bilayer, the surrounding water is in contact with the more _____ portion of the amphiphilic molecule.arrow_forwardFigure 3.5 What kind of sugars are these, aldose or ketose?arrow_forward
- Which of the following statements describes lignin? Question options: A polymer of several different monosaccharides The primary type of molecules mixed with cellulose to form wood A reducing saccharide A polysaccharide similar to cellulosearrow_forwardIn the produce department of supermarkets, vegetables and fruits (cucumbers are an example) have been coated with wax for shipping and storage. Suggest a reason why this is done.arrow_forwardwhich portion of phosphatidylinositol molecules contribute to the fluidity of the molecule and polarity of the bilayerarrow_forward
- Detergents are similar to phospholipids in that they are amphiphilic molecules with both polar and nonpolar parts.What do you think would happen to a cell placed in a solution containing a detergent?arrow_forwardThe molecule presented below is an example of aarrow_forwardWhich is a component of a phospholipidarrow_forward
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