10. Cell Signaling

In cell signaling, which substance directly causes actin filaments to change shape during cytoskeletal rearrangement?

Which type of chemical signals act locally but affect cell types other than the releasing cells?

Which of the following hormones is commonly detected in pregnancy tests to determine pregnancy in animals?

In the context of cell signaling, what does it mean to say that a signal is transduced?

Which of the following is a core principle of cell theory?

Which of the following best explains how the whorled patterns of fingerprints are associated with fetal blood supply during development?

Which of the following best describes the role of calcium ($\mathrm{Ca^{2+}}$) in synaptic activity?

Which process associated with cellular injury is most likely to be reversible?

Curare blocks action at acetylcholine synapses and causes paralysis. This drug is an example of an:

Which of the following correctly matches a glial cell type with its primary location and function?

Which of the following is an effect of insulin on target cells?

Which molecule is primarily responsible for triggering apoptosis in cell signaling pathways?

What is the primary function of memory cells in the immune system?

Which is true of the GTP-binding proteins that participate in intracellular signaling?

In the context of cell signaling and the immune response, what is the primary role of memory cells?