Tag: need for nutrients

Questions Related to need for nutrients

During prolonged fasting, the sequence of organic compounds used by body is 

  1. Carbohydrates, fats, proteins

  2. Fats, carbohydrates, proteins

  3. Carbohydrates, proteins, lipids

  4. Proteins, lipids, carbohydrates


Correct Option: A
Explanation:

The body burns fat after first exhausting the contents of the digestive tract along with glycogen (carbohydrates) reserves stored in muscle and liver cells. During short periods of energy abstinence, the human body will burn primarily free fatty acids from body fat stores. After prolonged periods of starvation when the body has depleted its body fat, it begins to burn lean tissue and muscle (protein) as a fuel source.

The radiant energy is stored in the form of chemical energy in

  1. DNA

  2. stored food

  3. RNA

  4. ATP


Correct Option: B
Explanation:

Chemical energy is stored in the bonds that connect atoms with other atoms and molecules with other molecules. Because chemical energy is stored, it is a form of potential energy. When a chemical reaction takes place, the stored chemical energy is released. Chemical Energy - is really a form of potential energy and is the energy stored in food or chemical combinations. Radiant Energy - is a combination of heat and light energy.

So, the correct option is 'stored food'.

Best source for dietary protein for a vegetarian is

  1. Soya Bean

  2. Gram

  3. Groundnut

  4. Milk


Correct Option: D
Explanation:
  • A vegetarian diet can be a healthy option for many reasons. When choosing vegetarian foods, consider the different ways to get the nutrients you need, including vegetarian protein sources. 
  • For those looking for meatless protein sources, especially lacto-vegetarians whose diets do not include eggs. Milk and milk products are a great choice because milk is a good source of high-quality protein. Hence, the best source for dietary protein for a vegetarian is milk.
So, the correct answer is 'milk'.

Sugars are not as good as fats as a source of energy for cellular respiration, because sugars.

  1. Produce toxic amino groups when broken down

  2. Contain more hydrogen

  3. Usually bypass glycolysis and the Krebs cycle

  4. Contain fewer hydrogen atoms and electrons


Correct Option: A
Explanation:

Sugars, when broken down, produces toxic amino groups. During Cellular Respiration, sugar is broken down to CO$ _2$and H$ _2$O, and in the process, ATP is made that can then be used for cellular work. Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most. In glycolysis, the 6-carbon sugar, glucose, is broken down into two molecules.

So the correct answer is 'Produce toxic amino groups when broken down'.

Which of the following is not directly dependent of a person's protein intake?

  1. Formation of enzymes

  2. Formation of glycogen stored in liver

  3. Production of antibodies in the immune system

  4. Production of muscle tissues


Correct Option: B
Explanation:

Considering all the four options we find that Enzymes, Antibodies and Muscle tissue all are made up of amino acids as their basic structural component only the glycogen stored in the liver is made up of monosaccharides as it's structural component. So, protein intake in the person will affect the formation of enzymes, antibodies and muscle tissue but will not affect the Glycogen stores in the Liver.

So, the correct answer to the question is 'Formation of the glycogen store in the liver'. 

A person is eating rice. His food contains

  1. Cellulose

  2. Starch

  3. Lactose

  4. Protein


Correct Option: B
Explanation:

Cereals like wheat, rice, maize etc., are good source of carbohydrates. They contain starch as reserve food in their endosperm. The starch is a polymer of glucose.

Meat, milk and eggs mainly supply us with

  1. Hormones

  2. Carbohydrates

  3. Proteins

  4. Fats


Correct Option: C
Explanation:

Proteins are the major body building biomolecules. Proteins serve a variety of structural and functional roles. Meat, milk and eggs are an important source of proteins. Soybean and other pulses are an important source of plant proteins.

Man needs carbohydrates as a source of energy and gets these from

  1. Starch

  2. Cellulose

  3. Both A and B

  4. None of the above


Correct Option: A
Explanation:

Carbohydrates are a source of energy and primary cellular fuel. Cereals like rice, wheat, maize are a primary source of carbohydrate for man. Humans can digest starch present in cereals but not cellulose. Hence, dietary starch is broken down into glucose inside the body which provides us with energy.

Therefore, the correct answer is option A.

Which of the following has maximum proteins?

  1. Rice

  2. Wheat

  3. Gram

  4. Soyabean


Correct Option: D
Explanation:

Rice and Wheat are cereals belonging to Family Poaceae. They are rich in carbohydrates. Gram and Soybean are legumes of Family Leguminosae. Legumes are rich in proteins. Soyabean is also an important oilseed crop. Among legumes Soyabean are richest source of proteins. Together, soyabean oil and protein content account for about 60% of dry soyabeans by weight (protein at 40% and oil at 20%).