#Question id: 11544
#Unit 7. System Physiology – Animal
When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then ________.
#Question id: 11545
#Unit 7. System Physiology – Animal
Growth factors are local regulators that ________.
#Question id: 11546
#Unit 7. System Physiology – Animal
Steroid and polypeptide hormones typically have in common ________.
#Question id: 11547
#Unit 7. System Physiology – Animal
A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
#Question id: 11548
#Unit 7. System Physiology – Animal
If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?
#Question id: 11549
#Unit 7. System Physiology – Animal
If a biochemist discovers a new molecule, which of the
following pieces of data would allow her to draw the conclusion that the
molecule is a steroid hormone?
I) The molecule is lipid soluble.
II) The molecule is derived from a series of steps
beginning with cholesterol.
III) The molecule acts at a target tissue some
distance from where it is produced.
IV) The molecule uses a transport protein when in an aqueous solution such as blood.