Which of the Following Statements Best Describes Diffusion

question 416

Multiple Choice

Which of the following statements best describes diffusion?

• A) the net movement of water through a selectively permeable membrane, from a region of greater water concentration to a region of lesser water concentration
• B) the net movement of substances from a region of lesser concentration to one of greater concentration
• C) the net movement of substances from a region of greater concentration to one of lesser concentration
• D) None of the listed responses is correct.

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Definitions:

Proteobacteria

Largest bacterial lineage; members show a wide range of metabolic diversity.

Cyanobacteria

Photosynthetic, oxygen-producing bacteria.

Spirochetes

Group of small bacteria shaped like a stretched-out spring.

DNA Nucleotides

The building blocks of DNA, consisting of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.