Biology Chapter 7 flashcards Quizlet

Biology Chapter 7 flashcards Quizlet - Obje Quizlet Login...

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Unformatted text preview: Obje Quizlet Login with Facebook (what's this?) or Username Sign Up Password Remember me for 3 weeks Home Features Find Flashcards Make Flashcards Help Blog Share these flashcards Share on Facebook Share on Twitter Link or embed O bje c t 1 O bje c t 3 O bje c t 4 Login Search Send About these flashcards Created by: rainbowpony241 on December 14, 2010 Subjects: membrane structure and function Groups: AP Biology Mid-Term Exam Log in to favorite or report as inappropriate. Pop out Discuss No Messages You must log in to discuss this set. Flashcards: Biology Chapter 7 T e r m F i r s t B o t h S i d e s Who was/were the first to propose that cell membranes are phospholipid bilayers? A) H. Davson and J. Danielli B) I. Langmuir C) C. Overton D) S. Singer and G. Nicolson E) E. Gorter and F. Grendel e C l i 1/69 Study: Speller new! Learn Test Play Games: Scatter Space Race All 69 terms Print List Print Cards Export Combine Terms Definitions Who was/were the first to propose that cell membranes are phospholipid bilayers? A) H. Davson and J. Danielli B) I. Langmuir C) C. Overton D) S. Singer and G. Nicolson E) E. Gorter and F. Grendel e Who proposed that membranes are a phospholipid bilayer between two layers of hydrophilic proteins? A) H. Davson and J. Danielli B) I. Langmuir C) C. Overton D) S. Singer and G. Nicolson E) E. Gorter and F. Grendel a Who proposed that the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids? A) H. Davson and J. Danielli B) I. Langmuir C) C. Overton D) S. Singer and G. Nicolson E) E. Gorter and F. Grendel d Which of the following types of molecules are the major structural c components of the cell membrane? A) phospholipids and cellulose B) nucleic acids and proteins C) phospholipids and proteins D) proteins and cellulose E) glycoproteins and cholesterol When biological membranes are frozen and then fractured, they tend to break along the middle of the bilayer. The best explanation for this is that A) the integral membrane proteins are not strong enough to hold the bilayer together. B) water that is present in the middle of the bilayer freezes and is easily fractured. C) hydrophilic interactions between the opposite membrane surfaces are destroyed on freezing. D) the carbon-carbon bonds of the phospholipid tails are easily broken. E) the hydrophobic interactions that hold the membrane together are weakest at this point. e The presence of cholesterol in the plasma membranes of some animals A) enables the membrane to stay fluid more easily when cell temperature drops. B) enables the animal to remove hydrogen atoms from saturated phospholipids. C) enables the animal to add hydrogen atoms to unsaturated phospholipids....
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This note was uploaded on 02/12/2012 for the course BIO 1030 taught by Professor Cundiff during the Fall '08 term at Colorado.

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Biology Chapter 7 flashcards Quizlet - Obje Quizlet Login...

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