Biol 1108 Exam -1 Questions with Correct Answers 2026

Biol 1108 Exam #1 Questions with
Correct Answers 2025
Prolactin njis nja njhormone njthat njhas njevolved njover njtime njand njis njexpressed njin njmany njdifferent
njverte njbrate njspecies. njThe njprimary njfunction njof njprolactin njin njsalmon, njamphibians, njand


njhumans njis njto nj- njCORRECT n j ANSWER n j -aid n j in n j reproduction n j and n j ensure n j the


n j continuation n j of n j a n j species




The njneurohormones njantidiuretic njhormone nj(vasopressin) njand njoxytocin njare njproduced njby njthe
nj- njCORRECT n j ANSWER n j -hypothalamus n j and n j released n j by n j the n j posterior n j pituitary




Which n j of n j the n j following n j would n j serve n j to n j change n j the n j set n j point n j of n j a n j regulatory
n j system n j - njCORRECT n j ANSWER n j -feed-forward n j information




Thyrotropin-
releasing n j hormone n j (TRH), n j which n j is n j secreted n j by n j the n j hypothalamus, n j causes n j the
n j anterior n j pituit njary n j to n j produce n j thyroid-


stimulating n j hormone n j (TSH). n j TSH, n j in n j turn, n j leads n j the n j thyroid n j to n j produce n j thyroxine,
n j and n j thyrox njine n j eventually n j causes n j reduced n j TRH n j secretion. n j This n j chain n j of n j events


n j is n j an n j example n j of n j


_ n j feedback n j - n j CORRECT n j ANSWER n j -long n j loop n j negative



Hormones n j are n j secreted n j by n j - n j CORRECT n j ANSWER n j -
endocrine n j glands, n j such n j as n j the n j thyroid n j gland n j and n j individual n j cells, n j such n j as n j those
n j lining n j portio njns n j of n j the n j digestive n j tract




Progesterone n j is n j secreted n j by n j the n j - n j CORRECT n j ANSWER n j -corpus n j luteum



During n j the n j njcycle, n j low n j levels n j of n j njcause n j a n j negative n j feedback n j on


n j the n j a njnterior n j pituitary n j gland n j - n j CORRECT n j ANSWER n j -ovarian n j cycle, n j estrogen

, Which n j of n j the n j following n j hormones n j is n j secreted n j by n j the n j posterior n j pituitary
n j gland? n j - njCORRECT n j ANSWER n j -oxytocin




A n j researcher n j analyzing n j the n j likelihood n j that n j a n j cell n j will n j be n j responsive n j to
n j a n j lipid- njsoluble n j hormone n j should n j search n j for n j the n j presence n j of n j -


n j CORRECT n j ANSWER n j -


a n j specific n j receptor n j in n j the n j cytoplasm n j or n j nucleus



Hormones n j released n j by n j the n j posterior n j pituitary n j are n j produced n j in n j the n j - n j CORRECT
n j ANSWER n j - njhypothalamus




Which n j of n j the n j following n j is n j not n j a n j characteristic n j of n j a n j hormone n j -
n j CORRECT n j ANSWER n j - njsecreted n j from n j glands n j into n j the n j interstitial n j fluid




Rising n j levels n j of n j a n j released n j hormone n j may n j inhibit n j its n j further n j release n j from n j the
n j cells n j that n j secre njted n j it. n j This n j is n j an n j example n j of n j a n j hormone n j having n j -


n j CORRECT n j ANSWER n j -


autocrine n j function n j in n j a n j negative n j feedback n j system



An n j amine n j hormone n j contains: n j - n j CORRECT n j ANSWER n j -

cholesterol njan n j amino n j acid n j chain

both n j cholesterol n j and n j an n j aromatic n j amino n j acid



Estrogen n j has n j a n j positive n j feedback n j on n j the n j anterior n j pituitary n j gland n j during n j the
nj njphase nj-


njCORRECT n j ANSWER n j -follicular n j phase




Where n j would n j you n j find n j a n j receptor n j of n j a n j target n j cell n j for n j a n j peptide
n j hormone? n j - njCORRECT n j ANSWER n j -on n j the n j cell n j surface




Which n j of n j the n j following n j statements n j about n j positive n j feedback n j is n j false n j - n j CORRECT
n j ANSWER n j - njIt n j is n j more n j commonly n j observed n j than n j negative n j feedback