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
67
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.
What is the relationship between food nutrients and satiation?
选项
A、Some nutrients have no effect on satiation.
B、Foods that taste better are more satiating.
C、High-fat foods give the highest level of satiation.
D、Satiation is lower in energy-dense foods.
答案
D
解析
Satiation is lower in energy-dense foods. Clues:... fat has a greater energy density...; Foods low in energy density are more satiating than foods high in energy density;.. .fat is the least satiating.
转载请注明原文地址:https://kaotiyun.com/show/3afO777K
0
托福(TOEFL)
相关试题推荐
ChooseTHREEletters,A-F.WhichTHREEthingsarethestudentsrequiredtosubmittotheirprofessor?AawrittensummaryBnote
Completethenotesbelow.WriteONEWORDONLYforeachanswer.DevelopmentStudiesDevelopmentStudiesattemptstounderstand-
Choosethecorrectletter,A,BorC.WhyisJilldoubtfulaboutrenewableenergy?
RegistrationofforeignnationalsatthehealthcentrestandardproceduresRegisterasa(n)【L1】___________________.Filliname
PRIMERECRUITMENTEmploymentrecordExampleSurname:LamertonEmail:【L1】___________________@worldnet.comNationality:【L2】____
HistoricalChangesintheEuropeanArtWorld1.EuropeanartistsintheLateMiddleAgeswereaccordedthesamesocialstatus
CivilizationBeforeabout3500BC,therewerecultures,butnotcivilizations.Prehistoricmenandwomencreatedsocieties,
CivilizationBeforeabout3500BC,therewerecultures,butnotcivilizations.Prehistoricmenandwomencreatedsocieties,
Thereareseveraldifferencesbetweenthecompositionofriverwaterand______ofseawater.
Myfriendgrowsmanybeautifulflowersinthegarden,butnoneofthemarerare.Itisnoteasytogrowapreciousflower_______
随机试题
A.下肢腱反射无改变B.膝腱反射减弱或消失C.跟腱反射减弱或消失D.下肢病理反射征阳性L4~5椎间盘突出
二尖瓣狭窄合并房颤,心室率120次/min,首选治疗是
关于行政诉讼简易程序,下列哪些说法是正确的?(2015年卷二第83题)
“进口口岸”栏:()。“商品名称规格型号”栏:()。
人身保险费率采用()。
甲公司是ABC会计师事务所的常年审计客户,主要从事A、B产品的生产和销售,A产品销往国外,B产品在国内市场销售。A注册会计师负责审计甲公司2014年度财务报表。资料一:A注册会计师在审计工作底稿中记载了所了解的甲公司及其环境。其中,与存货相关的部分内容
简述马克思主义关于人的全面发展学说的内涵。
只要教学得法,人人都可以成为科学家或诗人。
使用SQL语句从公司表中查询所有名称以北京开头的信息,正确的命令是()。
Thepurposeoflifelongemploymentisto______.Bytrainingitsemployees,acompanycanmakethem______.
最新回复
(
0
)