Our current view of membrane structure is based on the fluid mosaic model, proposed by ____ in 1972
a. Frye and Edidin
b. Watson and Crick
c. Singer and Goldstein
d. S. Singer and G. Nicolson
e. Brown and Goldstein
ANSWER: d
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The opposite results obtained by scientists apparently doing the same experiments in investigating spontaneous generation
A. shows the importance of repeating experiments. B. shows the importance of exactly duplicating experimental conditions. C. led to further experiments that ultimately furthered knowledge. D. All of the choices are correct.
Breathing rates are automatically increased when _____ levels are _____
a. oxygen; high b. carbon dioxide; high
c. oxygen; low d. carbon dioxide; low e. ATP; low
The condition in which walls of the alveoli break down, thereby creating fewer and larger chambers, is called ________
A) bronchitis B) emphysema C) TB D) influenza
Which part of an amino acid gives it its unique properties?
A.) peptide bonds B.) amino group C.) alpha carbon D.) carboxyl group E.) side chain