Anatomy and Physiology - MasteringA&P Access
5th Edition
ISBN: 9780321887917
Author: Marieb
Publisher: PEARSON
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Chapter 3, Problem 4CYU
Why do phospholipids, which form the greater part of membranes, organize into a bilayer—tail-to-tail—in a watery environment?
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Chapter 3 Solutions
Anatomy and Physiology - MasteringA&P Access
Ch. 3 - Summarize the four key points of the cell theory.Ch. 3 - How would you explain the meaning of a generalized...Ch. 3 - What basic structure do all cellular membranes...Ch. 3 - Why do phospholipids, which form the greater part...Ch. 3 - What is the importance of the glycocalyx in cell...Ch. 3 - Prob. 6CYUCh. 3 - What is the energy source for all types of...Ch. 3 - What determines the direction of any diffusion...Ch. 3 - What are the two types of facilitated diffusion...Ch. 3 - What happens when the Na+-K+ pump is...
Ch. 3 - As a cell grows, its plasma membrane expands. Does...Ch. 3 - Prob. 12CYUCh. 3 - Which vesicular transport process allows a cell to...Ch. 3 - What process establishes the resting membrane...Ch. 3 - Prob. 15CYUCh. 3 - What term is used to indicate signaling chemicals...Ch. 3 - Which organelle is the major site of ATP...Ch. 3 - What are three organelles involved in protein...Ch. 3 - Compare the functions of lysosomes and...Ch. 3 - How are microtubules and microfilaments related...Ch. 3 - Prob. 21CYUCh. 3 - Prob. 22CYUCh. 3 - If a cell ejects or loses its nucleus, what is its...Ch. 3 - What is the role of nucleoli?Ch. 3 - What is the role of nucleoli?Ch. 3 - If one of the DNA strands being replicated reads...Ch. 3 - During what phase of the cell cycle is DNA...Ch. 3 - What are three events occurring in prophase that...Ch. 3 - Codons and anticodons are both three-base...Ch. 3 - How do the A, P, and E ribosomal sites differ...Ch. 3 - What is the role of DNA in transcription?Ch. 3 - What is the importance of ubiquitin in the life of...Ch. 3 - Prob. 33CYUCh. 3 - The smallest unit capable of life by itself is (a)...Ch. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - The term used to describe the type of solution in...Ch. 3 - Osmosis always involves (a) a selectively...Ch. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - The endocytotic process in which a sampling of...Ch. 3 - Prob. 9RQCh. 3 - The nuclear substance composed of histone proteins...Ch. 3 - The information sequence that determines the...Ch. 3 - Mutations may be caused by (a) X rays, (b) certain...Ch. 3 - The phase of mitosis during which centrioles each...Ch. 3 - Final preparations for cell division are made...Ch. 3 - The RNA synthesized on one of the DNA strands is...Ch. 3 - The RNA species that travels from the nucleus to...Ch. 3 - If DNA has a sequence of AAA, then a segment of...Ch. 3 - A nerve cell and a lymphocyte are presumed to...Ch. 3 - Prob. 19RQCh. 3 - Explain why mitosis can be thought of as cellular...Ch. 3 - Contrast the roles of ER-bound ribosomes with...Ch. 3 - Cells lining the trachea have whiplike motile...Ch. 3 - Name the three phases of interphase and describe...Ch. 3 - Comment on the role of the sodium-potassium pump...Ch. 3 - Differentiate between primary and secondary active...Ch. 3 - Cell division typically yields two daughter cells,...
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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
- What intermolecular forces stabilize a lipid bilayer?arrow_forwardWhy is the lipid bilayer of a cell freely permeable to water,which is quite polar, but is not freely permeable to ammonia,which is also polar and about the same molecular size?arrow_forwardWhat are the properties of lipids responsible for the property of bilayers? Explain. What are the consequences of this property for the structure of the biological membranes?arrow_forward
- What properties define the phospholipids that make up the lipid bilayer?arrow_forwardAlthough both faces of a biomembrane are composed of the same general types of macromolecules, principally lipids and proteins, the two faces of the bilayer are not identical. What accounts for the asymmetry between the two faces?arrow_forwardwhat purpose does the plasma membrane’s hydrophobic interior serve?arrow_forward
- Why are phospholipds arranged tail to tail instead of head to head on lipid bilayers.arrow_forwardHow do we know that membrane phospholipids regularly intermingle and move laterally, but rarely flip from one side of the phospholipid bilayer to the other?arrow_forwardWhich characteristic of a phospholipid contributes to the fluidity of the membrane?arrow_forward
- Which portion of the phosphatidylinositol molecule contributes to (a) fluidity of the bilayer and (b) the surface polarity of the bilayer?arrow_forwardDraw the basic structure of a lipid bilayer and label thehydrophilic and hydrophobic regions. Why is the cytoplasmicmembrane a good permeability barrier?arrow_forwardHow do phospholipids regulate the flow of hydrophilic molecules? How does the bilayer layer regulate the flow of hydrophobic molecules?arrow_forward
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