Multiple Choice
Large molecules are moved out of the cell by which of the following processes?
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6. The Membrane
Endocytosis and Exocytosis
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Which statement is true of receptor-mediated endocytosis?
A
It is primarily used for the uptake of water and small solutes.
B
It involves the engulfing of large particles by the cell.
C
It is a form of passive transport that does not require energy.
D
It requires specific receptors to bind to target molecules before endocytosis occurs.
Verified step by step guidance1
Understand the concept of receptor-mediated endocytosis: It is a type of active transport where cells absorb molecules by engulfing them, using specific receptors on the cell surface.
Recognize that receptor-mediated endocytosis is selective: The process requires specific receptors to bind to target molecules, ensuring that only certain substances are internalized.
Differentiate receptor-mediated endocytosis from other forms of endocytosis: Unlike phagocytosis, which involves engulfing large particles, receptor-mediated endocytosis is more selective and involves smaller molecules.
Clarify the energy requirement: Receptor-mediated endocytosis is an active process, meaning it requires energy in the form of ATP to proceed.
Identify the correct statement: The statement 'It requires specific receptors to bind to target molecules before endocytosis occurs' accurately describes receptor-mediated endocytosis.
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