Question

endocrine hw 12 0.76 points ebook print references stronger response high receptor density = strong response reduced receptor density = reduced sensitivity up-regulation increased receptor density = increase sensitivity down-regulation diminished response low receptor density = weak response (diagrams of cells with receptors and labels: increased receptor density = increase sensitivity, high receptor density = strong response, stronger response, up - regulation; reduced receptor density = reduced sensitivity, low receptor density = weak response, diminished response, down - regulation)

Explanation:

This is a matching exercise for endocrine receptor regulation:

1. Right (Up-regulation) pathway:

• Start: Cell with low receptors → Matches Increased receptor density = Increase sensitivity
• Next: Cell with high receptors → Matches High receptor density = Strong response
• Final: Cell with activated receptors → Matches Stronger response
• The process label is Up-regulation

1. Left (Down-regulation) pathway:

• Start: Cell with high overstimulated receptors → Matches Reduced receptor density = Reduced sensitivity
• Next: Cell with low receptors → Matches Low receptor density = Weak response
• Final: Cell with diminished response → Matches Diminished response
• The process label is Down-regulation

Answer:

Right (Up-regulation) Sequence:

1. Increased receptor density = Increase sensitivity → Cell with low receptors
2. High receptor density = Strong response → Cell with high receptors
3. Stronger response → Cell with activated internal response
4. Up-regulation (labels the full pathway)

Left (Down-regulation) Sequence:

1. Reduced receptor density = Reduced sensitivity → Cell with high overstimulated receptors
2. Low receptor density = Weak response → Cell with low receptors
3. Diminished response → Cell with reduced internal response
4. Down-regulation (labels the full pathway)