Biology
Grade-7
Easy
Question
Which of the following elements is not obtained in the form of ions by most plants?
- Calcium
- Nitrogen
- Magnesium
- Phosphorus
Hint:
Along with sugars, this element forms the backbone of DNA.
The correct answer is: Phosphorus
- Phosphorous is important for the growth and metabolism of plants
- Phosphorous forms a part of the energy molecule called ATP
- Soil contains phosphorous in the form of rocks
- Phosphorous is artificially provided in the form of fertilizers, manures, etc
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Which of the following is a way to obtain nitrogen for most plants?
- As ions
- As nitrate
- As ammonium
- All of the above
Which of the following is a way to obtain nitrogen for most plants?
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How do most plants get carbon from the environment?
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Scientists anticipate that without nitrogen fertilizers, we would lose up to ___________ crops.
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Scientists anticipate that without nitrogen fertilizers, we would lose up to ___________ crops.
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_____________ fix nitrogen in roots.
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_____________ fix nitrogen in roots.
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Indirectly, the excess nitrogen can harm ____________.
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High amounts of nitrogen are absorbed from ___________.
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Nitrogen in excess cannot cause enough ______________.
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Which of the following is an effect of excess nitrogen in plants?
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Which of the following is an effect of excess nitrogen in plants?
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- Enhanced biomass
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The insufficiency of which of the following hampers plant growth?
- Nitrogen
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- Nitrogen
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- Copper
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If ___________ are not present, plants cannot produce the specific proteins required by plant cells.
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- Amino acids
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If ___________ are not present, plants cannot produce the specific proteins required by plant cells.
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Which of the following is false about plant growth?
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Seeds germinate into ______________.
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Which of the following is not true for plant growth?
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__ and __ are made up of Carbon, hydrogen, and oxygen.
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