High concentrations of salt and sugar in foods
A. are useful in preserving the food.
B. tend to draw water out of a cell.
C. tend to force water into a cell, causing plasmolysis.
D. have no effect on water availability.
E. are useful in preserving the food AND tend to draw water out of a cell.
E
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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.
At the emergency room, the doctor tell you "Your friend has high levels of troponin in the blood." What is this likely to indicate?
A. A broken bone B. A high level of fitness C. An unhealthy diet D. Muscle damage
Before Mendel began his pea plant experiments he wondered if traits in offspring result from blending of parental
traits or it they are inherited as ____________________ units. Fill in the blank(s) with the appropriate word(s).
The area of the retina that lacks photoreceptive cells is called the