Tag: food and it's constituents

Questions Related to food and it's constituents

Decreasing order of amount of organic compound in animal body __________________.

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Carbohydrate, Protein, Fat and Nucleic acid

  2. Protein, Fats , Nucleic acid and Carbohydrate and nucleic acid

  3. Protein, Fats, Carbohydrate and Nucleic acid

  4. Carbohydrate, Fats, Proteins and Nucleic acid

Show answer
Correct Option: C
Explanation:
The protein is the most important component of a cell. It forms an integral part of the cell membrane of all plants and animal cells. As a result protein is found in maximum amount in  human body.
Most of the hormones which are produced in the body and also constituents are blood are made up of proteins.
Apart from protein fat also has a considerable amount of mass in the body. this is followed by carbohydrate and the nucleic acid which is in least amount in the body.
Thus the correct option is C.



About 60% of our total energy requirements is met by 

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Vitamins

  2. Fats

  3. Proteins

  4. Carbohydrates

Show answer
Correct Option: D
Explanation:

Carbohydrates, proteins and fats in the foods provide energy for the body functions and physical activities. They, however, do not produce same amount of energy. the following is the energy-contribution by respective molecules.
Carbohydrates- 55-75% of energy contribution
Proteins- 10-15% of energy contribution
Fats- 15-30% of energy contribution
Therefore, the correct answer is option D.

Chemical nature of chitin is 

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Carbohydrate

  2. Protein

  3. Fat

  4. Nucleic acid

Show answer
Correct Option: A
Explanation:

Chitin is a carbohydrate. It is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world. It is a characteristic component of the cell walls of fungi, the exoskeletons of arthropods such as crustaceans (e.g., crabs, lobsters and shrimps) and insects, the radulae of molluscs and the beaks and internal shells of cephalopods, including squid and octopuses. The structure of chitin is comparable to the polysaccharide cellulose, forming crystalline nanofibrils or whiskers. 

The energy produced by 1g of carbohydrate is

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. 4.8 cal

  2. 4.2 kcal

  3. 9 joules

  4. 9.2 kcal

Show answer
Correct Option: B
Explanation:
Carbohydrates, proteins and fats in the foods provide energy for the body functions and physical activities. They, however, do not have same energy content. The following is the energy-content by respective nutrients:
1 gram of carbohydrates- 4kcal
1 gram of protein- 4 kcal
1 gram of fats- 9 kcal
So, the correct answer is '4.2 kcal'

Which one is not a source of carbohydrates?

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Wheat

  2. Gram

  3. Rice

  4. Sorghum

Show answer
Correct Option: B
Explanation:

The chickpea or chick pea is a legume of the family Fabaceae, subfamily Faboideae. It is also known as gram, or Bengal gram, garbanzo or garbanzo bean, and sometimes known as Egyptian pea, ceci, cece or chana, or Kabuli chana. It is the major source of proteins and not of carbohydrates. Wheat, rice and sorghum are the sources of carbohydrates. Thus, the correct answer is option B.

Which of the following nutrients do not provide energy for animals?

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Fats

  2. Carbohydrates

  3. Vitamins

  4. Proteins

Show answer
Correct Option: C
Explanation:
Fats are converted into energy when they are completely oxidized to CO2 and water by β-oxidation and the citric acid cycle. Carbohydrates are completely oxidized to CO2 and water during aerobic respiration and lead to the generation of ATP. Proteins get converted into intermediates of the respiratory cycle and finally get converted to high yielding energy molecules.
Vitamins do not directly play an important role in energy production however, they support the metabolism indirectly.
So, the correct answer is 'Vitamins'

Which of the following are energy giving foods?

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Groundnut and eggs

  2. Eggs and milk

  3. Soybean and groundnut

  4. Potatoes and rice

Show answer
Correct Option: D
Explanation:

Human food should consist of a variety of nutrients such as carbohydrates, minerals, fats, proteins, vitamins and fibre. However, carbohydrates provides the human body with maximum energy. Carbohydrates are broken down to various forms of glucose which acts as the best source of energy. A diet rich in carbohydrates includes potatoes, both white and sweet and rice (mainly brown rice) and foods made from whole wheat.

Which of the following nutrients produce energy? 

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Carbohydrates

  2. Vitamins

  3. Minerals

  4. Proteins

  5. Both A and D

Show answer
Correct Option: E
Explanation:

The composition of a healthy human food includes carbohydrates, vitamins, proteins, fats, minerals and fibre. While the consumption of these nutrients are required in varied quantities, usually depicted in a triangle with carbohydrates forming the base. Of all the nutrients, carbohydrates produce the maximum energy required for the body which is followed by fats. Proteins produce energy only under emergency situations.

About 70% of our energy requirements should be met by

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. Vitamins

  2. Fats

  3. Proteins

  4. Carbohydrates

Show answer
Correct Option: D
Explanation:

About 70% of our energy requirements should be met by carbohydrates.

carbohydrate provides the majority of energy in the diets of most people. There are many reasons why this is desirable. In addition to providing easily available energy for oxidative metabolism, carbohydrate-containing foods are vehicles for important micronutrients and phytochemicals. Dietary carbohydrate is important to maintain glycemic homeostasis and for gastrointestinal integrity and function. Unlike fat and protein, high levels of dietary carbohydrate, provided it is obtained from a variety of sources, is not associated with adverse health effects. Finally, diets high in carbohydrate as compared to those high in fat, reduce the likelihood of developing obesity and its comorbid conditions. An optimum diet should consist of at least 55% of total energy coming from carbohydrate obtained from a variety of food sources.
Therefore, the correct answer is option D.

The energy produced by 1g of carbohydrate is 

biology food and it's constituents energy giving food carbohydrate and its test biological molecules

  1. 2.0 kcal

  2. 4.2 kcal

  3. 7 kcal

  4. 9.4 kcal

Show answer
Correct Option: B
Explanation:

Carbohydrates, proteins and fats in the foods provide energy for the body functions and physical activities. They, however, do not have same energy content. The following is the energy-content by respective nutrients:
1 gram of carbohydrates- 4 kcal
1 gram of protein- 4 kcal
1 gram of fats- 9 kcal
Therefore, the correct answer is option B.