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The diffusion of substances within a solution tends to move those substances ________ their ________ gradient

A. up; electrical

B. up; electrochemical

C. down; pressure

D. down; concentration

Answer Explanation:

In the process of diffusion, a substance tends to move from an area of high concentration to an area of low concentration until its concentration becomes equal throughout a space.

Therefore, the Correct Answer is D.

More Questions on TEAS 7

  • Q #1: Ion pumps and phagocytosis are both examples of ________

    A. endocytosis

    B. passive transport

    C. active transport

    D. facilitated diffusion

    Answer Explanation

    Phagocytosis, pinocytosis, and exocytosis are all examples of active transport. Active transport is a type of transport that uses energy. During phagocytosis, cells use their membrane to take in large molecules from the external environment.

  • Q #2: The diffusion of substances within a solution tends to move those substances ________ their ________ gradient

    A. up; electrical

    B. up; electrochemical

    C. down; pressure

    D. down; concentration

    Answer Explanation

    In the process of diffusion, a substance tends to move from an area of high concentration to an area of low concentration until its concentration becomes equal throughout a space.

  • Q #3: Choose the answer that best completes the following analogy: Diffusion is to ________ as endocytosis is to ________

    A. filtration; phagocytosis

    B. osmosis; pinocytosis

    C. solutes; fluid

    D. gradient; chemical energy

    Answer Explanation