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1、食品营养学练习题22（Exercisesinfoodnutrition22）ExercisesinfoodnutritionFirst,nouninterpretation1,nutrition:istostudythelawofhumannutrition,nutritionandhealthrelationsandnutritionimprovementmeasuresofadiscipline.2.Nutrients:asubstancewithnutritionalfunction.3.Basicmetabolism:theener
2、gyexpenditurenecessarytomaintainthemostbasiclifeactivitiesofhumanbody.4.Thespecialdynamicactionoffood:thephenomenonofexcessiveincreaseofenergyconsumptioncausedbytheingestionofhumanbody.5.Glycemicindex:thetotalareaoftheplasmaglucosecurvewithinthe2haftermealandthetotalareaof
3、the2Hplasmaglucosecurveafterthesameamountofglucose.6,dietaryfiber:foodcannotbedigestedbythedigestiveenzymesoftheabsorptionofpolysaccharidesubstancescollectively.7,thelimitingaminoacidsinfoodproteins:referstooneorseveralrelativelylowcontentofessentialaminoacids,essentialami
4、noacidscausedtheotherinthebodycannotbefullyutilizedandthewastecausedbythenutritionalvalueofproteindecreasedandtherelativelackoftheseessentialaminoacidscontent,knownaslimitedaminoacid.8.Proteinefficiencyratio:averageweightgainper1gproteinperlaboratoryanimal.Reflectingtheeff
5、iciencyofproteinsinmakinganimalsgrow.9.Proteincomplementation:theroleofdifferentfoodmixturesincomplementingeachother'sessentialaminoaciddeficiencies10,essentialaminoacids:referstothehumanbodycannotsynthesizeorsynthesisspeedcannotmeettheneedsofthebody,mustbedirectlyobtained
6、fromfoodaminoacids.11.Nutritionalqualityindex:theratioofnutrientdensity(theratioofanutrienttosupply)andtheheatdensity(theratioofheatenergytotheamountsuppliedtoit).12,dietarystructure:referstoacertainperiodoftimeinthedietofcertaingroupsofpeople,animalsandplantsandothertypes
7、offoodconsumption,quantityandproportion.13,dietaryguidelines:accordingtonutritiontheory,combinedwiththeactualsituationofthecommunitypopulation,istoeducatethecommunitytotakeabalanceddiet,intakeofreasonablenutritiontopromotehealthguidance.14,RNI:recommendedintake,equivalentt
8、othetraditionaluseofRDA,referstomeetaspecificgender,ageandphysiologicalconditionsinthepop
