首页
登录
职称英语
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats
游客
2024-01-02
26
管理
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. [br] 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://tihaiku.com/zcyy/3327899.html
相关试题推荐
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
TheformationofAproteinsisoneofthemostimportantBfunctionoftheCgenes
随机试题
Idon’tbelieveyouaregoingtohavethematterlookedintotoday,______?A、are
Whichofthefollowingwordscontainstwomorphemes?A、Physic.B、Intemational.C、
ComputerCrimeI.IntroductionCurrentsituation;theincreaseinn
Howmanypeoplehavediedofthedisease?[originaltext]Twomorepeoplehave
WhichofthefollowingdetailsaboutHitchcockisINCORRECT?[originaltext]A
Accordingtothepassage,whenthreepeoplelookoutthesamewindow,______.[b
车辆驶近停在车站的公交车辆时,为预防公交车突然起步或行人从车前穿出,应怎样做?(
在电阻抗型血液分析仪中,与脉冲振幅成正比的一项是:()A.细胞的移动速度
锤击套管成孔灌注桩的中心距在5倍桩管外径以内或小于2m时均应跳打,施打中间空出的
下列关于契约型基金投资者与基金管理人的法律关系说法正确的是()。 Ⅰ.基
最新回复
(
0
)