Tag: nutrition and its need

Questions Related to nutrition and its need

One example of a nutrient in its reduced form is

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  1. Carbon in $CO _2$

  2. Hydrogen in $H _2O$

  3. Nitrogen in $NH _3$

  4. Sulphur in sulphate

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Correct Option: C

Which of the following statement is correct for a protective role of photosynthesis?

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  1. With the insufficient fund of availability of co2 the light energy cannot be fully absorbed

  2. In c4 plant some of the oxygen is combined with rubisco

  3. Either presence or absence of light, yield and productivity is c4 plant is always high

  4. Excess light can cause photo-oxidation and damage the plant, Photorespiration provides protection against this

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Correct Option: A
Explanation:

 A limiting factor is simply anything in short supply that will limit the rate of photosynthesis. Photosynthesis has 3 limiting factors: light intensity, carbon dioxide concentration, temperature. Sometimes photosynthesis is limited by the concentration of carbon dioxide in the air. Even if there is plenty of light, a plant cannot photosynthesis if there is insufficient carbon dioxide as the light energy cannot be fully absorbed. 

So, the correct option is 'with the insufficient fund of availibility of co2 the light energy cannot be fully absorbed'.

Many elements are found in living organisms either free or in the form of compounds. Which one of the following is not found in living organisms?
evs deficiency diseases need for nutrients nutrients needed by the body balanced diet and malnutrition food for health nutrition and its deficiency nutrition and its need

  1. Silicon

  2. Magnesium

  3. Iron

  4. Sodium

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Correct Option: A
Explanation:

A comparison of elements present in non-living and living matter is given in the table below:

 Elements  $\%$ weight of    $\%$ weight of 
   Earth crust (non living matter)  Human body (living matter)
Hydrogen   0.14  0.5 
Carbon   0.03  18.5 
Oxygen   46.6  65.0 
Nitrogen   very little  3.3 
Sulphur  0.3 0.3 
Sodium   2.8  0.2
Calcium  3.6   1.5
Magnesium  2.1  0.1 
Silicon  27.7  negligible 

What is needed in photosynthesis to convert carbon dioxide into organic molecules?

evs deficiency diseases need for nutrients nutrients needed by the body balanced diet and malnutrition food for health nutrition and its deficiency nutrition and its need

  1. Light and hydrogen from the splitting of water

  2. Light and oxygen from the splitting of water

  3. ATP and hydrogen from the splitting of water

  4. ATP and oxygen from the splitting of water

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Correct Option: A
Explanation:
The process of photosynthesis in plants involves a series of steps and reactions that use light energy, water, and carbon dioxide to produce oxygen and organic compounds.
 6CO$ _{2}$  + 6H$ _{2}$O + light energy $\longrightarrow$ C$ _{6}$H$ _{12}$O$ _{6}$ + 6O$ _{2}$.

Here, glucose is produced using the Hydrogen, emitted from the splitting of water. Light energy is also required for the reaction to take place. 

What does an inorganic compounds contain?

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  1. Sodium Chloride

  2. Nutrients

  3. Oil

  4. Fats

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Correct Option: A

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

evs deficiency diseases need for nutrients nutrients needed by the body balanced diet and malnutrition food for health nutrition and its deficiency nutrition and its need

  1. Carbohydrates, fats, proteins

  2. Fats, carbohydrates, proteins

  3. Carbohydrates, proteins, lipids

  4. Proteins, lipids, carbohydrates

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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

evs deficiency diseases need for nutrients nutrients needed by the body balanced diet and malnutrition food for health nutrition and its deficiency nutrition and its need

  1. DNA

  2. stored food

  3. RNA

  4. ATP

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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

evs deficiency diseases need for nutrients nutrients needed by the body food for health balanced diet and malnutrition nutrition and its deficiency nutrition and its need

  1. Soya Bean

  2. Gram

  3. Groundnut

  4. Milk

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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'.

Carbohydrates are generally called as saccharides.

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  1. True

  2. False

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Correct Option: A
Explanation:

Carbohydrates (also called saccharides) are molecular compounds made from just three elements: carbon, hydrogen and oxygen. Monosaccharides (e.g. glucose) and disaccharides (e.g. sucrose) and polysaccharide (starch). They are often called sugars.

So, the correct option is 'True'.

The food which includes the essential nutrients in a definite quantity is termed as balanced diet.

evs food trends need for nutrients nutrition and its deficiency nutrition and its need balanced diet and malnutrition balanced and unbalanced food digestive disorders diseases caused by changes in lifestyle diseases and toxic substance health and its maintenance

  1. True

  2. False

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Correct Option: A
Explanation:

Nutrients that we obtain through food have vital effects on physical growth and development, maintenance of normal body function, physical activity and health. Nutritious food is, thus needed to sustain life and activity. Our diet must provide all essential nutrients in the required amounts. Requirements of essential nutrients vary with age, gender, physiological status and physical activity. Dietary intakes lower or higher than the body requirements can lead to under nutrition (deficiency diseases) or over nutrition (diseases of affluence) respectively. So, the correct option is 'True'.