BIO 202 ENDOCRINE SYSTEM (EXAM 1) QUESTIONS WITH CORRECT ANSWERS

BIO 202: ENDOCRINE SYSTEM (EXAM 1)
QUESTIONS WITH CORRECT ANSWERS 2025-
2026
Endocrine system CORRECT ANSWER
Involves in regulation, homeostasis. Composed of ductless glands that secrete hormones



Hormones CORRECT ANSWER Chemical signal, binds to receptors in target tissue


Functions of hormone CORRECT ANSWER Sleep, metabolism, ion homeostasis, growth,
reproduction



True endocrine glands CORRECT ANSWER Pituitary, thyroid, parathyroid, adrenal


Organs with endocrine function CORRECT ANSWER
Heart, thymus, pancreas, gonads, kidneys, hypothalamus, stomach, adipose



TypesLof hormones based on circulation CORRECT ANSWER Circulating, paracrine, autocrine
hormones



Circulating hormones CORRECT ANSWER
Diffuse into blood, travel throughout body, regulate target cells



Paracrine hormones CORRECT ANSWER Circulate in fluids, bind to receptors on local target cells


Autocrine CORRECT ANSWER Binds to receptors on the cell that secreted it
L L




Chemical properties of hormones CORRECT ANSWER Polar & nonpolar molecules


Polar molecules(insulin, epinephrine, serotonin) CORRECT ANSWER
Water soluble, easily transport, receptor is on membrane of targetLcells, hormone binds to receptor(2nd
messenger)