What makes a cell responsive to a particular hormone?

• A. The proximity of the cell to the hormone-secreting gland
• B. The presence of specific receptors for that hormone on the cell membrane
• C. The cell's ability to produce hormones
• D. The size of the cell

Answer: (B)

Verified step by step guidance

1. Understand that hormones are chemical messengers that travel through the bloodstream to target cells.
2. Recognize that a cell's responsiveness to a hormone is determined by the presence of specific receptors on its surface or inside the cell.
3. Learn that these receptors are proteins that bind to the hormone, initiating a cellular response.
4. Note that the proximity of the cell to the hormone-secreting gland does not affect responsiveness; it is the presence of receptors that is crucial.
5. Understand that the size of the cell or its ability to produce hormones does not influence its responsiveness to external hormones.