Biology ยท General Awareness

Nutrition and Food Sources

2,818 Questions

Nutrition and Food Sources questions test your knowledge of vitamins, dietary minerals, carbohydrates, and specialized dietary principles. This topic is commonly asked in railway, SSC, and UPSC exams. Review these questions to master the biological and health aspects of human nutrition.

Vitamins and mineralsDietary fiber sourcesMacronutrient functionsNaturopathic diet principlesOmega-3 fatty acids

Nutrition and Food Sources Questions

Multiple choice

Minerals, proteins, vitamins are together called__________.

  1. Nutritional food

  2. Protective foods

  3. Additional food

  4. Weaning food
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Minerals, proteins, and vitamins are essential nutrients that protect the body from diseases and maintain overall health. They are collectively classified as protective foods, whereas carbohydrates and fats are primarily energy-giving foods.

Multiple choice

If we take food rich in lime juice, then

  1. action of ptyalin on starch is enhanced

  2. action of ptyalin on starch is reduced

  3. action of ptyalin on starch is unaffected

  4. action of ptyalin on starch stops
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If we take food rich in lime juice, then action of ptyalin on starch is reduced as ptyalin becomes inactive at acidic pH.

Multiple choice

Which one is not a diuretic food?

  1. Watermelons

  2. Cucumbers

  3. Watercress

  4. Rice
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Rice is a non diuretic substance. It does not help to increase urination.

Multiple choice

Directions: The sentence given below is divided into four parts (A), (B), (C) and (D). One of these parts may contain an error. You have to indicate that part as your answer. If there is no error, mark (E) as your answer.

Complex carbohydrates (A) such as whole grain foods (B) as well fruits and vegetables, (C) provide lasting energy because they take long time (D) to digest. (E) No error

  1. (A)

  2. (B)

  3. (C)

  4. (D)

  5. (E)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The correct expression is 'as well as'.

Multiple choice

A food product is considered nutritious if it meets two criteria. It must meet some BIS standard for fat content and it must not contribute to a vitamin deficiency. For instance, ice cream, which contains milk, does not contribute to a vitamin deficiency, but it does not meet BIS standards for fat content. Therefore, ice cream is not a nutritious food.

If all of the above statements are true, each of the following must also be true EXCEPT

  1. not contributing to a vitamin deficiency must be a criterion met by a nutritious food.

  2. manufacturers of ice cream are not concerned with the nutritional value of their product.

  3. ice cream contains nothing that would be a detrimental to vitamin intake.

  4. some foods that contain milk are not nutritious.

  5. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

From the argument it is impossible to tell whether ice cream manufacturers are concerned with the nutritional value of their product.

Multiple choice

Cereal crops are source of ___________.

  1. proteins

  2. carbohydrates

  3. fats

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cereal crops, such as wheat, rice, and maize, are primary sources of carbohydrates in the human diet.

Multiple choice

'Pulses' are a rich source of

  1. carbohydrates

  2. proteins

  3. fats

  4. vitamins and minerals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ans - 2

All kind of pulses are rich sources of proteins. Hence, they must be included in our diet.

Multiple choice

If we take food rich in lime juice, then

  1. action of ptyalin on starch in enhanced

  2. action of ptyalin on starch is reduced

  3. action of ptyalin on starch is unaffected

  4. action of ptyalin on starch stops
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ptyalin (salivary amylase) functions optimally in a slightly alkaline or neutral pH. Lime juice is acidic; therefore, it lowers the pH of the mouth, which inhibits or reduces the action of ptyalin on starch.