首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends o
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends o
admin
2019-07-01
81
问题
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends on how much of each nutrient it contains. When broken down in the body, a gram of carbohydrate and a gram of protein each yield about four kilocalories of energy. A gram of fat yields nine kilocalories; therefore, fat has a greater energy density than either protein or carbohydrates. Foods with a high energy density provide more kilocalories per gram than foods with a low energy density.
2 Different meals may deliver the same number of kilocalories but varying amounts of food energy. For example, a 450-gram breakfast of cereal, milk, fruit, egg, turkey sausage, toast, and jam and a 150-gram breakfast of doughnuts both deliver 500 kilocalories. However, the first breakfast, which is higher in protein, has a lower energy density than the doughnuts and supplies three times as much food energy.
3 During a meal, as food enters the digestive tract, hunger decreases and the body reaches satiation, the signal to stop eating. The nutrient composition of a meal affects the level of satiation the meal provides. Foods low in energy density are more satiating than foods high in energy density. Of the three energy-yielding nutrients, protein is the most satiating and fat is the least satiating. High-fat foods are flavorful, which encourages people to eat more, but they are also energy-dense and deliver more kilocalories per bite. Therefore, eating meals high in fat may lead to overconsumption.
It can be inferred from paragraph 1 that foods high in protein are
选项
A、broken down slowly in the body
B、higher in calories than foods high in fat
C、more flavorful than foods high in fat
D、less energy-dense than foods high in fat
答案
D
解析
You can infer that foods high in protein are less energy-dense than foods high in fat. Clues: ...a gram of protein...about four kilocalories of energy. A gram of fat yields nine kilocalories....; ...fat has a greater energy density than.. .protein....
转载请注明原文地址:https://kaotiyun.com/show/kafO777K
0
托福(TOEFL)
相关试题推荐
Completethesummarybelow.WriteNOMORETHANTHREEWORDSforeachanswer.MajorProblemsofaCompanySincethecompanyopened
ChooseTHREEletters,A-F.WhichTHREEthingsarethestudentsrequiredtosubmittotheirprofessor?AawrittensummaryBnote
BeforeyoulistenLookatthetaskbelow.Trytoworkoutthesituationfromthetask.Whataretheytalkingabout?Whyarethey
WhichTWOcoursesdoesthesummerschooloffer?ApreparationcoursesforgraduatestudiesBteachertrainningCfutureemplo
A、Tocorrectacommonmisunderstandingaboutgrasshoppers.B、Tohelpexplainhowwellgrasshopperscanjump.C、Tocomparethesi
NarratorListentoapartofatalkreportingastudyproject.Whoaremorelikelytoinformsomeoneoftheirexpectedarr
NonverbalSignalsAshumans,wecommunicateprimarilythroughlanguage.Aspeakertransmitshisorherthoughtsandfeelings
A、ThetourguidewillbelateB、TheappointmentforthetourwillbechangedC、Thetourwillbeginbeforesheandthemanarrive
InasurveyofsuburbanAhomeowners,thelawnmowerBwasratedoneofCthemostimportantDequipments.
Theseobservationsindicatetheextremedifficultyincultivatingthispreciousthingcalleddemocracy.
随机试题
25岁女性,妊娠15周。昨夜发热,今朝颜面及周身出现皮疹。查体皮疹为栗粒大红色丘疹,无Koplik斑,两侧耳后可触及数个淋巴结,风疹抗体效价升高8倍。下述哪项处置最合适()
阅读郭沫若《炉中煤》的第一节:啊,我年青的女郎!我不辜负你的殷勤,你也不要辜负了我的思量。我为我心爱的人儿燃到了这般模样!请回答:(1)“我年青的女郎”的象征意义是什么?(2)“炉中煤”的燃烧的象征意
A.行气行血B.收敛固涩C.软坚散结D.和中缓急E.渗湿利水甘味药的作用是
水泥混凝土的凝结时间是通过贯入阻力试验方法测定的。()
已知信号x(t)如图所示,在发送中混入了高频噪声,接收端在接收时需要通过怎样处理才能恢复信号,同时去除x(t)中的直流分量?()
以下各项不是对账的内容的是()。
下列关于质物、质押权利合法性的说法,正确的有()。
推动社会发展的根本动力是()
一个队列的初始状态为空。现将元素A,B,C,D,E,F,5,4,3,2,1依次入队,然后再依次退队,则元素退队的顺序为【】。
有两个关系R和T如下:则由关系R得到关系T的操作是( )。
最新回复
(
0
)