Biology
Grade-7
Easy
Question
The given picture illustrates the use of _________________ by plant.

- Inorganic fertilizer
- Biofertilizer
- Insecticide
- Herbicide
Hint:
Bacteria acts as biofertilizer for the plants
The correct answer is: Biofertilizer
- The given picture shows uptake of phosphorus by the roots of plants
- The phosphorus is first converted from non absorbable form to the absorbable by the bacteria
- The bacteria , fungi etc are biofertilizers
- These are phosphate solubilising bacteria
- It is then absorbed by the root system
Related Questions to study
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___________________ is a component of protein and an amino acid in plants.
- Potassium
- Silicon
- Nitrogen
- Magnesium
___________________ is a component of protein and an amino acid in plants.
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- Potassium
- Silicon
- Nitrogen
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The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
- Fertilizer
- Inorganic fertilizer
- Herbicide
- Soil fertility
The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
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- Fertilizer
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Natural fertilizers derived from plants and animals are known as _________________.
- Biofertilizer
- Organic fertilizer
- Inorganic fertilizer
- Fertilizer
Natural fertilizers derived from plants and animals are known as _________________.
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- Biofertilizer
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Chemicals that kill insects that destroy crops are called ________________.
- Fertilizers
- Insecticides
- Herbicides
- Biofertilizers
Chemicals that kill insects that destroy crops are called ________________.
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- Fertilizers
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Plants take in water with the help of their _________.
- Leaves
- Stem
- Roots
- Flower
Plants take in water with the help of their _________.
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- Leaves
- Stem
- Roots
- Flower
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In _________ pollination, the resulting progeny have lower disease immunity.
- Self
- Cross
- Stigma
- Wind
In _________ pollination, the resulting progeny have lower disease immunity.
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- Self
- Cross
- Stigma
- Wind
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Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
- Self
- Cross
- Stigma
- Wind
Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
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- Self
- Cross
- Stigma
- Wind
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The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
- Self
- Cross
- Stigma
- Wind
The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
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- Self
- Cross
- Stigma
- Wind
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Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
- Self
- Cross
- Stigma
- Wind
Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
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- Self
- Cross
- Stigma
- Wind
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Humans perform artificial pollination, which is called anemophily.
- True
- False
Humans perform artificial pollination, which is called anemophily.
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- True
- False
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The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
- True
- False
The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
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- True
- False
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Pick the odd one out.
- Wind
- Fire
- Animals
- Humans
Pick the odd one out.
BiologyGrade-7
- Wind
- Fire
- Animals
- Humans
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Pick the odd one out.
- Pistil
- Stamen
- Filament
- Anther
Pick the odd one out.
BiologyGrade-7
- Pistil
- Stamen
- Filament
- Anther
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Pick the odd one out.
- Style
- Stigma
- Ovule
- Anther
Pick the odd one out.
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- Style
- Stigma
- Ovule
- Anther
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