Tag: need for nutrients
Questions Related to need for nutrients
Calcium is ____ nutrient.
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Organic
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Inorganic
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Both
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None of these
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 :
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Nitrogen
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Potassium
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Sulphur
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Ammonia
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.
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Carbon
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Calcium
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Nitrogen
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Potassium
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.
Plants require nitrogen along with carbohydrates. This nitrogen can be obtained by
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Rhizobium
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Vibrio
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Salmonella
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Felix
Rhizobium is a nitrogen-fixing bacteria found in symbiotic association with the root nodules of leguminous plants.
Which one includes others?
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Photosynthesis
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Catabolism
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Metabolism
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Anabolism
Photosynthesis is a metabolic process of formation of glucose from carbon dioxide and water in presence of light energy.
Reduced coenzyme NADPH $(H^+)$ is produced in respiration during
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Glycolysis
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PPP
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Krebs cycle
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Terminal oxidation.
PPP or pentose phosphate pathway is an important pathway that takes place in the cytoplasm.
One example of a nutrient in its reduced form is
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Carbon in $CO _2$
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Hydrogen in $H _2O$
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Nitrogen in $NH _3$
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Sulphur in sulphate
Which of the following statement is correct for a protective role of photosynthesis?
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With the insufficient fund of availability of co2 the light energy cannot be fully absorbed
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In c4 plant some of the oxygen is combined with rubisco
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Either presence or absence of light, yield and productivity is c4 plant is always high
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Excess light can cause photo-oxidation and damage the plant, Photorespiration provides protection against this
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.
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Silicon
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Magnesium
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Iron
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Sodium
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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Light and hydrogen from the splitting of water
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Light and oxygen from the splitting of water
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ATP and hydrogen from the splitting of water
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ATP and oxygen from the splitting of water