AP Biology 4.1.B Short- and Long-Distance Signaling
Practise AP Biology 4.1.B questions by distinguishing local regulators, synaptic chemical signals and hormones that travel to distant target cells.
- Syllabus
- Effective Fall 2025
- Course
- AP Biology
Exam points
- distinguish local regulators from hormones that travel through the circulation
- identify synaptic chemical signaling across a narrow intercellular space
- trace a secreted signal from one tissue to a distant target cell through the circulation
4.1.B—Explain how cells communicate with one another over short and long distances question 1
[Maximum number: 1]
Based on the information provided, which of the following best justifies the claim that osteocalcin is a hormone?
A
The phosphorylation of the insulin receptor causes a response in osteoblast bone cells.
B
The osteoblasts in the bone secrete osteocalcin, which causes cells in the pancreas to change their activity.
C
The change in expression of E s p changes the insulin receptor activity of the osteoblast.
D
The activation of the osteocalcin by a bone cell is pH dependent.
B
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