BIOS 255 Comprehensive Exam With Complete Solutions.

,BIOS 255 Comprehensive Exam With
Complete Solutions

, What fis fhomeostasis? f- f fcorrect fanswer- fmaintenance fof fa fstable finternal fenvironment fwith fthe
fcontribution fof fall forgan fsystems




What fare fthe fcomponents fof fa fhomeostatic fmechanism? f- f fcorrect fanswer- f-Stimulus

-Receptors

-Control fcenter

-Effector

-Response



What fis fa fnegative ffeedback fmechanism? f- f fcorrect fanswer- fBody fREVERSES, for fgoes fagainst, fan
foriginal fstimulus fto freturn fto fhomeostasis


Example: fBlood fglucose fregulation fafter feating.



What fis fa fpositive ffeedback fmechanism? f- f fcorrect fanswer- fAmplifies fthe fchange ffrom fthe fnormal
flevel. f(Agrees fwith fthe fchange)


Example: fChildbirth, fblood fclotting



What ffeedback fmechanism fis fmost fcommon? f- f fcorrect fanswer- fnegative



Inferior f- f fcorrect fanswer- fBelow; fat fa flower flevel



Superior f- f fcorrect fanswer- fAbove; fhigher flevel



Lateral f- f fcorrect fanswer- fSide; fAway ffrom fthe fmidline fof fthe fbody



Proximal f- f fcorrect fanswer- fCloser fto fthe fpoint fof fattachment