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
23
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] The passage supports which of the following statements about food nutrition?
选项
A、The nutrients in food determine its energy yield and level of satiation.
B、All foods with the same number of kilocalories are equally nutritious.
C、The most nutritious foods are those that are high in energy density.
D、Too many protein-rich foods will lead to overeating and weight gain.
答案
A
解析
The passage supports the statement that the nutrients in food determine its energy yield and level of satiation. In fact, these are major ideas in the passage. Clues: The amount of energy a food provides depends on how much of each nutrient it contains; The nutrient composition of a meal affects the level of satiation the meal provides.
转载请注明原文地址:https://tihaiku.com/zcyy/3327902.html
相关试题推荐
Oxygenandnutrientsreachthebody’stissues______fromthebloodthroughthe
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
1Thethreeenergy-yieldingfoodnutrientsarecarbohydrates,proteins,andfats
TheformationofAproteinsisoneofthemostimportantBfunctionoftheCgenes
随机试题
WhoseGraveisThisAnyway?Therearemanylegendsaboutthe
()问题是关系国计民生的根本性问题,必须始终把解决好“三农”问题作为全党工作重中
男性,34岁,上厕所时向后摔倒,枕部着地,昏迷40分钟。醒后对伤情记忆不清,呕吐
A.腹腔镜下剥除异位囊肿后随访 B.保留卵巢功能的手术辅以药物治疗 C.保留
全党同志要倍加珍惜、长期坚持和不断发展党历经艰辛开创的这条道路、这个理论体系、这
用于砌筑结构的石材强度等级应符合设计要求,设计无要求时不得小于()。A、30M
理中丸的君药是A.干姜 B.人参 C.白术 D.桂枝
下列选项中,属于会计方法的有()。A.设置账户 B.复式记账 C.登记账簿
某民营企业对开发的住宅类房地产项目进行施工招标。根据《招标投标法实施条例》,下列
在市场经济条件下,在成本、会计核算中应当对可能发生的损失和费用,作出合理预计,以
最新回复
(
0
)