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.
Answer: B
You might also like to view...
Which of the following statements is true regarding the sexual life cycle of basidiomycetes? Select all correct choices
A. Spore precursor cells undergo meiosis and mitosis to form spores. B. Spore precursor cells only undergo meiosis to form spores. C. Spore precursor cells only undergo mitosis to form spores. D. Fruiting bodies are composed of both haploid (1n) and dikaryotic (n+n) cells. E. Fruiting bodies are only composed of dikaryotic cells (n+n).
The letters G, Q, R, and C, used to describe the appearance of chromosomes, refer to the ____
a. position of the bands b. staining procedure used to reveal the bands c. number of arms per chromosome d. number of centromeres per chromosome e. position of the centromeres
Why is the cohesion of water important for biological systems?
A) It helps to moderate the temperature of cold-blooded animals. B) It helps transport water from the roots to the leaves of a plant. C) It prevents chemical reactions from occurring in body systems. D) It prevents salts from dissolving inside the plasma membrane.
Persistent pollutants that accumulate in living tissue will be most concentrated in the bodies of
A. producers. B. decomposers. C. carnivores. D. herbivores.