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2.4 DEFICIENCY DISEASES
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Page N.
Date :
Inda dequate and improper
diet can lead to disease.
Answers
Answer:
When the extra water is thrown away, the nutrients dissolved in the water are also lost. Cooking food at high heat can destroy vitamin C. Page No 22: Question 5: Name the two ...
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Answer:
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Explanation:
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Page No 21:
Question 1:
Which of these provides energy?
(a) vitamins
(b) minerals
(c) carbohydrates
(d) water
ANSWER:
(c) carbohydrates
Carbohydrates are a source of energy. Carbohydrates are converted into energy by combining with oxygen obtained by respiration. The byproducts are water and carbon dioxide.
Page No 21:
Question 2:
Which of these is the quickest source of energy?
(a) sugars
(b) starch
(c) proteins
(d) fats
ANSWER:
(a) sugars
Sugars are used by the body to generate energy most quickly.
Page No 22:
Question 1:
Into which classes are nutrients divided? Which of these provide energy to the body?
ANSWER:
Nutrients are divided into following classes depending upon the function they perform.
Energy giving nutrients
Body building nutrients
Protective nutrients
Energy giving nutrients, namely carbohydrates and fats provide energy to the body.
Page No 22:
Question 2:
What are protective foods?
ANSWER:
Protective foods are foods that contain minerals and vitamins. The minerals and vitamins in the protective food protect the body against various diseases.
Page No 22:
Question 3:
How are the proteins important for the body?
ANSWER:
Protein is a body building nutrient. Proteins are important to generate new cells and to replace old and worn out cells. Hence, they play a role in growth of the body.
Page No 22:
Question 4:
Mention two cooking methods that destroy nutrients in food.
ANSWER:
The two cooking methods that destroy nutrients in food are:
Cooking food in excess water dissolves many nutrients, particularly water soluble vitamins, in the water. When the extra water is thrown away, the nutrients dissolved in the water are also lost.
Cooking food at high heat can destroy vitamin C.
Page No 22:
Question 5:
Name the two kinds of carbohydrates. Which of these provides us quick energy?
ANSWER:
Sugars and starch are two kinds of carbohydrates. Sugars are easier to break down and they provide us with quick energy.