Fluid mosaic Study guides, Class notes & Summaries
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PORTAGE LEARNING CHEM 210 exams 1-8 and final exam
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Portage Learning CHEM 210 exams 1-8 and final exam 
 
Question 1 
3 / 3 pts 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. 
 
 
 
True Correct! 
False Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True Correct! 
False Question 3 
3 / 3 pts 
 
True or False: The following functional group is an alcohol. 
 
 
 
 
 
True Correct! 
False Question 4 
3 / 3 pts 
 
True or False: In ...
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LSU Bio 1201 exam 2 Questions and Answers 100% Pass
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LSU Bio 1201 exam 2 Questions and 
 
Answers 100% Pass 
 
why are membranes called phospholipid bilayers? phospholipids have hydrophilic head and 
hydrophobic tail, hydrophobic face inside of cell making 2 layers 
 
what is meant by fluid mosaic? Mosaic of proteins drifting laterally in fluid bilayer of 
phospholipids 
 
how are membranes adjusted for different temperatures? membrane fluidity adjusted by 
changing the ratio of unsaturated to saturated fatty acids 
 
how do the relative amounts o...
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Bio 1201 exam 2 Gregg latest update graded A+
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Bio 1201 exam 2 Gregg latest update 
 
graded A+ 
 
transport proteins are responsible for controlling passage across the membrane 
 
fluid mosaic model The membrane is a mosaic of protein molecules bobbing in a fluid 
bilayer of phospholipids 
 
fatty acid tails nonpolar, hydrophobic 
 
fatty acid heads hydrophilic, polar 
 
periphial proteins bound to the surface of the membrane 
 
integral proteins penetrate the hydrophobic core (ones that span the membrane are 
transmembrane protiens 
 
How ...
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BCH210 Midterm 2| 316 Questions| With Complete Solutions
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Essential Membrane Functions correct answer: act as barrier 
regulate import and export of molecules 
compartmentalization of processes increases efficiency 
 
membrane properties correct answer: composed of lipid bilayer 
impermeable to polar molecules 
asymmetric 
 
membrane fluidity correct answer: lipids and proteins rotate or move within bilayer; allows cell movement, growth, division, secretion, cell junction formation, and self-heal if punctured 
comformational changes mediate 
 
fluid...
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UIUC ANSC 221, Exam II Questions With Verified Answers
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UIUC ANSC 221, Exam II Questions With Verified Answers 
Biological Membranes 
Framework of the membrane is the phospholipid bilayer 
 
 
Hydrophobic 
water fearing region, faces in 
 
 
Hydrophilic 
water living region, faces out 
 
 
Fluid-mosaic model 
membrane is considered a mosaic of lipid, protein, and carbohydrate molecules 
 
 
Integral/Intrinsic membrane proteins 
transmembrane and lipid-anchored proteins 
 
 
Transmembrane proteins 
One or more regions that are physically embedded in t...
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BCH210 TEST 2 Questions With Complete Solutions
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functions of the membrane correct answer: -the structure of the membrane is key for its function 
 
-act as a barrier regulating import and export of molecules 
-help with compartmentalization of the cell, creating particular environments for certain processes so multiple specialized processes could occur at once 
-modulates cell-cell recognition with their glycoproteins and glycolipids located on the outer leaflet facing the cytosol 
-signaling across the membrane by proteins and lipids 
 
p...
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TEXT BANK MCCANCE HUETHER PATHOPHYSIOLOGY EXAMINATION STUDY GUIDE UPDATED EDITION 2022 QUESTIONS AND ANSWERS
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PATHOPHYSIOLOGY 8TH EDITION MCCANCE TEST BANK Chapter 1: Cellular Biology MULTIPLE CHOICE 1. Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. c. Cells can take in and use nutrients. b. Cells can secrete digestive enzymes. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining options are not inclusive in their descriptions of cellular ...
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BCH210 Lecture 7 Questions With Complete Solions
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How does membrane formation occur? correct answer: decrease in ionic bond with water 
 
What are the main functions of the cell membrane? correct answer: - barrier regulating the import and export of essential molecules 
- Compartmentalization of specialized processes increases cellular efficiency. 
- modulates cell-cell recognition due to the presence of glycoproteins and glycolipids. 
- Signalling across the membrane is mediated by proteins and lipids. 
 
What is the fluid mosaic model? corr...
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Campbell Biology in Focus 3rd Edition
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1. Home 
2. Practice Test 
3. Chapter 5 
Practice Test 
Chapter 5: Membrane Transport and Cell Signaling 
Question1 
Question 1:Which cell structure allows selective permeability between a cell and its external 
environment? (Section 5.1) 
SHOW HINT 
mitochondria 
the plasma membrane 
chloroplasts 
endoplasmic reticulum 
lysosomes 
right answer feedback:The plasma membrane allows some substances to cross into a cell more 
easily than others. 
Question2 
Question 2:Which statement about the role ...
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Brooks Biological Principles Exam 2 Latest Update with Verified Solutions
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Cytology the study of cells 
Cell Theory all living things are composed of cells and come from living cells 
Robert Hooke one of the first to use microscope, observing a piece of cork from the stem of 
plants, where he found chambers arising in the idea of a cell. 
Light Microscope takes pictures of large atoms. 
nucleus, not electrons 
Scanning Electron Microscope electrons are reflected off of a specimen and are analyzed by 
a computer to create a 3D image 
Transmission Electron Microscope Mic...
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