Fluid mosaic Study guides, Class notes & Summaries

TEST BANK PATHOPHYSIOLOGY THE BIOLOGICAL BASIS FOR DISEASE IN ADULTS AND CHILDREN BY McCance 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 remaini...

Homeostasis When organisms maintain a stable internal environment even when external conditions change Metabolism Combination of chemical reactions taking place within an organism Stimulus A signal to which an organism responds Biosphere Means "living planet" Robert Hooke Scientist who looked at cork through a microscope and gave the name to cells Light Microscope A type of microscope Can magnify 1000x Not as strong as other microscopes Uses light Scanning Electron Microscope A typ...

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 ...

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...

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...

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 ...

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 ...

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...

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...

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 ...