Tag: food components

Quizzes (7) Questions (38)

Questions Related to food components

Multiple choice evs food components simple test for nutrients test for nutrients protein and its function energy from different food components nutrients and foodstuffs

Which of the following is used to test presence of starch?

  1. Cheek peel

  2. Onion

  3. Potato

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solution test. For example, if iodine is added to an peeled potato then it will turn black. 

Multiple choice evs food components simple test for nutrients test for nutrients protein and its function energy from different food components nutrients and foodstuffs

Which of the following test are used for detection of protein?

  1. Biuret test

  2. Iodine test

  3. Protein test

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

The Biuret test is a chemical test used for detecting the presence of peptide bonds. In the presence of peptides, a copper (II) ion forms violet-coloured coordination complexes in an alkaline solution. The Biuret reaction can be used to assess the concentration of proteins because peptide bonds occur with the same frequency per amino acid in the peptide. 

Multiple choice evs food components simple test for nutrients test for nutrients protein and its function energy from different food components nutrients and foodstuffs

Choose the correct answer from the alternatives given.
If an animal needed to store energy for long-term use, but not be encumbered with the weight of extra.tissue, which is the best molecule for storage?

  1. Fructose and glucose in the form of honey

  2. High-calorie fat molecules

  3. Complex cellulose molecules

  4. Glycogen with extensive side branches of glucose
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If an animal needed to store energy for long-term use, but not be encumbered with the weight of extra tissue, then high-calorie fat molecules are the best molecules for storage. So, the correct answer is "high-calorie fat molecules".

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

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
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

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
Reveal answer Fill a bubble to check yourself
B Correct answer
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'. 

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

Meat, milk and eggs mainly supply us with

  1. Hormones

  2. Carbohydrates

  3. Proteins

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

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

Which of the following has maximum proteins?

  1. Rice

  2. Wheat

  3. Gram

  4. Soyabean
Reveal answer Fill a bubble to check yourself
D Correct answer
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%).

Multiple choice evs food components energy from different food components nutritional requirements of the body need for nutrients simple test for nutrients test for nutrients

Which of the following plants are rich sources of dietary protein?

  1. Cajanus cajan

  2. Solanum nigrum

  3. Tridax procumbens

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

Cajanus cajan is a puise seed crop and belongs to family Leguminosae. Its english name is pigeon pea and is commonly called Arhar or Toor in hindi. Being a pulse seed crop it is rich in proteins.