Which of the Following Statements Is True for All Types

question 33

Multiple Choice

Which of the following statements is true for all types of passive transport?

• A) Proteins are needed to transport molecules across the membrane.
• B) The concentration gradient is the driving force.
• C) Only small polar molecules are able to cross the plasma membrane.
• D) Ions never cross the plasma membrane by passive transport.

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An American psychologist who established the psychological theory of behaviorism, emphasizing the importance of observable behavior.