Question

[Lê Quỳnh Anh]

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question.

In addition to providing energy, fats have other functions in the body. The fat-soluble vitamins, A, D, E, and K, are dissolved in fats, as their name implies. Goof source of these vitamins have high oil or fat content, and the vitamins are stored in the body’s fatty tissues. In the diet, fats cause food to remain longer in the stomach, thus increasing the feeling of fullness for some time after a meal is eaten.

Fats add variety, taste and texture to foods, which accounts for the popularity of fried foods. Fatty deposits in body have an insulating and protective value. The curves of the human female body are due mostly to strategically located fat deposits. Whether a certain amount of fat in the diet is essential to human health is not definitely known. When rats are fed a fat-free diet, their growth eventually ceases, their skin becomes inflamed and scaly and their reproductive systems are damaged. Two fatty acids, linoleic and arachidonic acids, prevent these abnormalities and hence are called essential fatty acids. They are also required by a number of other animals, but their roles in human beings are debatable. Most nutritionists consider linoleic fatty acid an essential nutrient for humans

Which of the following is true for rats when they are fed a fat-free diet?

A. They have more babies

B. They stop growing

C. They lose body hair

D. They require less care

Answer 1

[Dương Hoàn Anh]

Đáp án : B

Đáp án B nhắc đến từ cuối dòng 4: when rats are fed a fat – free diet, their growth eventually cease (= khi những chú chuột không ăn chất béo, sự phát triển của chúng ngừng lại);