What does K permeability measure?
a. The amount of sucrose in the solution
b. The permeability of the membrane
c. The speed of the osmometer
b
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Joseph Lister
A. pioneered the use of gamma rays for sterilizing food. B. designed and built the first autoclave. C. demonstrated that microorganisms are carried on dust particles in the air. D. revolutionized surgery by introducing phenol as a disinfectant.
If you mechanically shook a mixture of phospholipids and water, what would you expect to see when you observe the solution using an electron microscope?
A) The lipids and water will have separated into two distinct layers because the lipids are partially nonpolar. B) Some lipids will have formed tiny vesicles filled with water. C) All the lipids will have formed planar bilayer membranes. D) Most lipids will have completely dissolved in solution because they are partially polar.
In principle, gene expression can be controlled at any of the steps between a gene and its ultimate functional product. For the majority of genes, however, the __________ is the most important point of control. Because this control point can ensure that no unnecessary intermediates are synthesized.
A) Replication. B) Transcription C) Translation. D) PCR.
A normal inhabitant of the vaginal tract that causes "yeast infections" under certain circumstances is Saccharomyces.
Answer the following statement true (T) or false (F)