Tag: balanced diet and malnutrition

Questions Related to balanced diet and malnutrition

Calcium is ____ nutrient.

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  1. Organic

  2. Inorganic

  3. Both

  4. None of these

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Correct Option: B
Explanation:

Calcium strengthens bones and teeth in our body. It is an inorganic substance which is later converted to its organic forms when it gets combined with carbon molecule.

Find the odd :

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. Nitrogen

  2. Potassium

  3. Sulphur

  4. Ammonia

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Correct Option: D
Explanation:

Nutrients obtained by plants and animals are classified into two groups organic and inorganic. Inorganic nutrients are those that are not easily found in animals or plants. They are always converted into their organic forms. Ammonia is an organic nutrient generally found in animals for synthesis of various metabolite.

Fertilizers supply this component that is essential for plant growth. Name the component.

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. Carbon

  2. Calcium

  3. Nitrogen

  4. Potassium

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Correct Option: C
Explanation:

Nitrogen is one such element which is very important in plant growth because it is an essential part of the chlorophyll that is the site of photosynthesis.

Nitrogen is not found in the free state in the soil and the plants cannot take up nitrogen from the air directly so we add fertilizers that are rich in nitrogen and supply the plant with it.
Calcium and potassium are trace elements and are needed in small amounts and can be taken up from the soil. Plants take up carbon directly from the atmosphere.
So, the correct option is 'Nitrogen'

Plants require nitrogen along with carbohydrates. This nitrogen can be obtained by

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  1. Rhizobium

  2. Vibrio

  3. Salmonella

  4. Felix

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Correct Option: A
Explanation:

Rhizobium is a nitrogen-fixing bacteria found in symbiotic association with the root nodules of leguminous plants. 

For nitrogen fixation rhizobium needs an oxygen-free environment because oxygen acts as a poison and so it forms the association because the root nodules contain leg hemoglobin which is an oxygen scavenger. 
In return the plant gets Nitrogen.
So, the correct option is 'Rhizobium'

Which one includes others?

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  1. Photosynthesis

  2. Catabolism

  3. Metabolism

  4. Anabolism

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Correct Option: A
Explanation:

Photosynthesis is a metabolic process of formation of glucose from carbon dioxide and water in presence of light energy.

Anabolic processes are those in which small molecules combine to form large molecules. The photosynthesis is an anabolic process as small carbon and hydrogen molecule combine to form the glucose.
Catabolism is a process of breakdown of larger molecules into smaller once. The photolysis of water is a catabolic process.
So, the correct option is 'Photosynthesis'

Reduced coenzyme NADPH $(H^+)$ is produced in respiration during

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  1. Glycolysis

  2. PPP

  3. Krebs cycle

  4. Terminal oxidation.

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Correct Option: B
Explanation:

PPP or pentose phosphate pathway is an important pathway that takes place in the cytoplasm.

 It is an alternative path for the Krebs cycle and is the only pathway that forms reduced NADH. The enzyme transhydrogenase, that transfers the hydrogen of NADPH to NAD and forms NADH.
So, the correct option is 'PPP'

One example of a nutrient in its reduced form 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. 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?

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  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

Show answer
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.