Multiple Choice
Which of the following is an example of an active transport process?
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6. The Membrane
Active Transport
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Which of the following statements regarding active transport is false?
A
Active transport moves substances against their concentration gradient.
B
Active transport requires energy in the form of ATP.
C
Active transport can occur without the use of transport proteins.
D
Active transport is essential for maintaining cellular homeostasis.
Verified step by step guidance1
Understand the concept of active transport: Active transport is a cellular process that moves molecules across a cell membrane against their concentration gradient, from a region of lower concentration to a region of higher concentration.
Recognize the energy requirement: Active transport requires energy, typically in the form of adenosine triphosphate (ATP), to move substances against their concentration gradient.
Identify the role of transport proteins: Active transport generally involves transport proteins, such as pumps, that facilitate the movement of molecules across the membrane.
Evaluate the statement about transport proteins: The statement 'Active transport can occur without the use of transport proteins' is false because transport proteins are typically necessary for active transport processes.
Consider the importance of active transport: Active transport is crucial for maintaining cellular homeostasis by regulating the internal environment of the cell, ensuring proper concentrations of ions and molecules.
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