Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5.2, Problem 2TYK
Which of the following changes would make a membrane more fluid?
- decrease the temperature
- increase the percentage of lipids with short tails
- decrease the percentage of lipids with double bonds in their tails
- increase the percentage of glycoproteins
- increase the percentage of glycolipids
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Students have asked these similar questions
Which of the following statements about a typical plasma membrane is correct?
The hydrophilic interior of the membrane is composed primarily of the fatty acid tails of the phospholipids.
Carbohydrates on the membrane surface are important in determing the overall bilayer structure.
Phospholipids are the primary component that determines which solute can cross the plasma membrane.
The two sides of the plasma membrane have different lipid and protein composition.
The plasma membrane is covalently linked network of phospholipids and proteins that controls the movement of solutes into and out of a cell.
According to the fluid mosaic model of cell membranes, which of the following is a
true statement about membrane phospholipids?
They frequently flip-flop from one side of the membrane to the other.
They have hydrophilic tails in the interior of the membrane.
They can move laterally along the plane of the membrane.
They are free to depart from the membrane and dissolve in the surrounding solution.
Which of the following is a true statement?
Sphingolipids contain 2 hydrophobic, acyl chains
Phospholipids contain 3 hydrophobic acyl chains
Sphingolipids are completely no-polar, hydrophobic molecules
The different types of phospholipids do not have different physical properties when in the membrane
Chapter 5 Solutions
Principles of Biology
Ch. 5.1 - Which of the following is not a characteristic of...Ch. 5.1 - Prob. 2TYKCh. 5.2 - In an animal cell, how can changes in lipid...Ch. 5.2 - Prob. 2CCCh. 5.2 - Prob. 1TYKCh. 5.2 - Which of the following changes would make a...Ch. 5.3 - Prob. 1BCCh. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2BCCh. 5.3 - Prob. 2CC
Ch. 5.3 - Prob. 1TYKCh. 5.3 - Prob. 2TYKCh. 5.4 - Prob. 1CCCh. 5.4 - Prob. 1TYKCh. 5.4 - Prob. 2TYKCh. 5.5 - Prob. 1BCCh. 5.5 - Prob. 1TYKCh. 5.6 - Prob. 1CCCh. 5.6 - A form of endocytosis that involves the formation...Ch. 5.7 - Prob. 1CCCh. 5.7 - Prob. 2CCCh. 5.7 - Prob. 1BCCh. 5.7 - Anchoring junctions that adhere adjacent animal...Ch. 5 - Which of the following statements best describes...Ch. 5 - Which of the following events in a biological...Ch. 5 - Prob. 3TYCh. 5 - Carbohydrates of the plasma membrane are bonded to...Ch. 5 - Which of the following movements would not be an...Ch. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - What features of a membrane are a major...Ch. 5 - Prob. 9TYCh. 5 - Large particles can be brought into the cell by...Ch. 5 - With your textbook closed, draw and describe the...Ch. 5 - Describe two different ways that integral membrane...Ch. 5 - A principle of biology is that living organisms...Ch. 5 - Prob. 1CBQCh. 5 - With regard to bringing solutes into the cell...
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- Which plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forwardCell membranes consist mainly of a _________. a. carbohydrate bilayer and proteins b. protein bilayer and phospholipids c. phospholipid bilayer and proteinsarrow_forwardIn the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.arrow_forward
- Cell membranes consists mainly of ________ and ________ . a. lipids; carbohydrates c. lipids; phospholipids b. phospholipids; protein d. phospholipids; ECMarrow_forwardIn a lipid bilayer, the of all the lipid molecules are sandwiched between all of the __________. a. hydrophilic tails; hydrophobic heads b. hydrophilic heads; hydrophilic tails c. hydrophobic tails; hydrophilic heads d. hydrophobic heads; hydrophilic tailsarrow_forwardWhich of the following statements are TRUE about the phospholipid bilayer? Select all that apply. Integral proteins have at least one part touching the inner 'tails' of the membrane. Peripheral proteins span the entire membrane. Cholesterol can be used to make the membrane more OR less fluid, depending on the temperature. Glycolipids and glycoproteins face the inside of the cell.arrow_forward
- Which of the following molecules may diffuse freely through a phospholipid bilayer? (select two answers) asparagine, an amino acid with a large, hydrophilic side chain alanine, an amino acid with a small, hydrophobic side-chain testosterone, a steroid hormone fructose, a monosaccharide molecular oxygen (O2)arrow_forwardBacteria can change the number of saturated and unsaturated lipids and then plasma membrane if a membrane is too solid it will not allow proteins to flow if a member is to loose it will not held together, what should bacteria do to the relative amount of saturated and unsaturated lipids in the plasma membrane if the bacteria moves from 25° to 37° . Consider what happens to butter when the temperature increases.arrow_forwardWhich of the following is true about phospholipid bilayers? The interior of the layer is highly hydrophilic. The hydrophobic tail faces the cell interior. The polar/hydrophilic tails face the cell interior and exterior. The polar/hydrophilic heads face the cell interior and exterior. The hydrophobic head faces the cell exterior.arrow_forward
- Eukaryotic membrane fluidity can be increased by which of the following mechanisms? cell bio increasing the number of carbons in the fatty acids of membrane lipids increasing the number of fatty acids attached to glycerol in membrane lipids increasing the number of straight-chain fatty acids of membrane lipids increasing the degree of unsaturation in the fatty acids of membrane lipids increasing the number of membraned organelles in the eukaryotic cellarrow_forwardThe plasma membrane is composed of a variety of lipid molecules. 1. Phosphatidylethanolamine 2. Phosphatidylcholine 3. Phosphatidylinositol 4. Phosphatidylserine 5. Sphingomyelin 6. Glycolipids 7. Cholesterol. Which lipids contain sugar molecules?arrow_forwardWhich of the following would render the plasma membrane more fluid? Group of answer choices Increased number of phospholipids with short fatty acid tails Decreased temperature Decreased number of cis-bonds Increased number of saturated phospholipid fatty acid tailsarrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license