Tag: constitutes of diet

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Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Vitamin stored in liver is 

  1. Vitamin D

  2. Vitamin K

  3. Vitamin E

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • A vitamin is an organic molecule that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism.
  • Fat-soluble vitamins(A, D and K) are stored in different organs of the body and especially in the liver.
  • Vitamin A, VitaminK and Vitamin E are stored in the liver because they are fat soluble vitamins.
  • So, the correct answer is 'All the above'.
Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Consider the following statements:
(I) The pellagra vitamin is nicotinamide present in milk, yeast, meat and leafy vegetables.
(II) Crypts of Lieberkuhn are present in the liver.
(III) Steapsin is the pancreatic amylase.

  1. I and II are correct.

  2. II and III are correct.

  3. I and III are incorrect.

  4. I and II are incorrect.

  5. I, II and III incorrect.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nicotinamide or Niacin is also known as anti pellagra vitamin. It is a component of NADP, NADP+ and is important for energy transfer reactions. Yeast, pulses, green vegetables, cereals, milk, egg yolk, liver, milk, fish, meat are rich sources of niacin. Crypts of lieberkuhn occur throughout small intestine and produce intestinal juice or succus entericus. Steapsin is pancreatic lipase and acts on fats and converts fats into fatty acids, glycerol, mono and diglycerides.

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

The correct match is 

A. Vitamin ${B _1}$   Thiamine
B. Vitamin ${B _5}$ Pantothenic acid
C. Vitamin A   Retinol
D. Vitamin E Tocopherol

  1. A-1, B-2, C-3, D-4

  2. A-1, B-3, C-4, D-2

  3. A-3, B-4, C-2, D-1

  4. A-4, B-3, C-2, D-1
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamins are important nutrient supplements required in small amounts. They usually serve as coenzymes in metabolic reactions. Vitamin B$ _{1}$ is also called as Thiamine and its coenzyme form is thiamine pyrophosphate. Vitamin B$ _{5}$ is pantothenate. It is an important component of coenzyme A. Vitamin B$ _{3}$ or Niacin is important for synthesis of nicotinamide adenine dinucleotide or NAD and nicotinamide adenine dinucleotide phosphate or NADP. Vitamin A is also called retinol. It is essential for vision. Vitamin E is also called tocopherol. It is an important for fertility factor.

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Which of the following vitamins are fat soluble?

  1. A, B, C, K

  2. A, B, D, E

  3. A, D, E, K

  4. A, D, C, K
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vitamins are important nutritional supplements for body. They are required for normal body metabolism. Vitamins can be grouped into two categories- fat soluble (vitamins A, D, E and K) and water soluble vitamins (vitamin B complex and vitamin C). The fat soluble vitamins can be stored in body fat but water soluble vitamins cannot be stored in body.

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Which of the following is not a function of vitamins?

  1. Useful in metabolism

  2. To give energy

  3. Useful in growth

  4. Useful in digestion
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamins do not help to increase the amount of calories or energy required for the human body. Instead vitamins which are used in small quantities helps human beings to stay healthy. While the daily requirements of vitamins may differ from individual to individual, the necessary amounts can be met through intake of healthy food.

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

The vitamin that is useful in cancer is vitamin

  1. A
  2. ${ B } _{ 17 }$

  3. C

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vitamin A - carotene, the precursor of Vitamin A is found in most orange and green vegetables such as carrots, sweet potatoes, spinach and other leafy green vegetables. It has been shown in research that -carotene protect the lungs against toxins that are linked to lung cancer. Another study found that ex-smokers who ate green and yellow vegetables high in beta carotene daily decreased their risk of stomach and lung cancer.
Vitamin ${B _{17}}$ - The anti-tumour agent Vitamin ${B _{17}}$ (commonly known as Amygdalin or Laetrile) therapy is one of the most popular and best known alternative cancer treatments. It is very simple to use and is very effective when used in high enough doses with product of high quality combined with an effective cancer diet and key supplements. Laetrile works by targeting and killing cancer cells and building the immune system to fend off future outbreaks of cancer. The greatest concentration is found in the seeds of the rosaceous fruits, such as the apricot pits and other bitter nuts.
Vitamin C - Vitamin C has shown great promise in the fight against cancer, both in prevention and disease-management. Some properties of the vitamin C may make it toxic to cancer cells. Vitamin C is an antioxidant,it also enhance the immune system by stimulating the activities of natural killer cells (a type of white blood cell) and anti-cancer agents. Vitamin C is also said to prevent tumors from spreading, help the body heal after cancer surgery, enhance the effects of certain anti-cancer drugs, and reduce the toxic effects of other drugs used in chemotherapy. It also boost the effectiveness of other cancer treatments. Vitamin C is found in many vegetables and fruits, especially oranges, grape fruits, and peppers.

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Certain B vitamins are

  1. Enzymes

  2. Co-enzymes

  3. Hormones

  4. Digestive substances
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamins are important nutritional components. Vitamins are grouped into two categories fat soluble (vitamin A, D, E and K) and water soluble (vitamin B complex and C). Many component vitamins of vitamin B complex act as coenzymes during metabolic reactions example thiamine is the precursor of thiamine pyrophosphate (TPP), niacin is the precursor of nicotinamide adenine dinucleotide (NAD), riboflavin is the precursor of flavin adenine dinucleotide (FAD) etc. 

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Which of the following is a water soluble vitamin?

  1. Vitamin A

  2. Vitamin B

  3. Vitamin D

  4. Vitamin E

  5. Vitamin K
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vitamins are important for healthy living. They are required for normal body metabolism as many enzymes required coenzymes for their activity. The coenzymes are derived from vitamins. The vitamins are divided into two categories- fat soluble (vitamin A, D, E and K) and water soluble (vitamin B complex and C).

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

The maximum amount of which nutrient is lost during processing?

  1. Vitamins

  2. Proteins

  3. Carbohydrates

  4. Fats
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Almost all food is processed in some way before it is eaten. Commercially, the main reasons to process food are to eliminate micro-organisms (which may cause disease) and to extend shelf life. Simply cooking or combining a food with other foodstuffs to create a recipe is also considered a form of food processing. Whatever the case, the nutrient value of any food is often altered by the processing. Some vitamins are more stable (less affected by processing) than others. Water-soluble vitamins (B-group and C) are more unstable than fat-soluble vitamins (K, A, D and E) during food processing and storage. The most unstable vitamins include: folate, thiamine and vitamin C. More stable vitamins include: niacin (vitamin B3), vitamin K, vitamin D etc. So, maximum amount of vitamins are lost during food processing compared to carbohydrates, fats and proteins. 

Multiple choice biology constitutes of diet role of vitamins functions and principal sources of vitamins and minerals digestive disorders need for nutrients

Which of the following does not generate energy inside the body but are still essential?

  1. Fat

  2. Proteins

  3. Vitamins

  4. Carbohydrates
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vitamins does not generate energy inside the body but are still essential.

You need vitamins for immune function, growth, normal eye functions and an array of biological activities. Vitamins come in two forms: water-soluble and fat-soluble. Water soluble vitamins include a series of B vitamins and vitamin C. You need to consume water-soluble vitamins from foods throughout the day, since your body does not have a way to store them. Fat-soluble vitamins are absorbed and stored with the help of fat. These vitamins, which are A, D, E and K, stay in your body until needed. Even though, vitamins do not have calories and do not give you energy directly, some of them are involved in energy metabolism. For example- thiamine, niacin and riboflavin, which are all B vitamins, pull energy from carbohydrates, protein and fat in your diet, but the B vitamins do not independently provide energy.