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How is the nitrogen taken up by the plants?
I. In the form of inorganic nitrates or nitrites
II. In the form of organic compounds
III. Directly taken up from the atmosphere

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Important Questions on Biology

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General Knowledge>General Science>Biology>Fundamentals of Biology
Which of these is the energy conversion that happens in the process called photosynthesis?
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The inflorescence in Sunflower is of the type_____.
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The development of a fruit without fertilization is called_____?
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Which of the following is not the main function of root system?
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The green colour of plant leaves is due to:
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Carbon and energy requirements of an autotrophic organism are fulfilled by _____.
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In which of the following reactions is oxygen released into air?

 

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Which one of the following is active transport?

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Pollination by wind is called _____.
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Which of the following wavelength of light is absorbed the most for photosynthesis?
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Plants grown at which of the following places take up carbon dioxide during the night?
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Saliva contains enzyme_____:
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Syngamy results in formation of 
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What is the yellow dust present in the middle of a flower called?
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Which one of the following is the correct sequence of events during sexual reproduction in plants?

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The process of using microbes to treat areas of land or sea that have been contaminated by pesticides, oil or solvents is known is
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Chlorophyll in photosynthetic prokaryotic bacteria is associated with________________.

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Photosynthesis reaction occurs in the presence of _____.
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The green colour of the plant leaf is due to _____.
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Which natural phenomenon conducts carbon dioxide fixation in plants?