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A leaf was plucked from a plant on a sunny day and kept for 2 minutes in boiling water. It was subsequently immersed in boiling alcohol and treated with iodine solution. What will be the final colour of the leaf after the test?

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Important Questions on Biology

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General Awareness>General Science>Biology>Fundamentals of Biology
The development of a fruit without fertilization is called_____?
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General Awareness>General Science>Biology>Fundamentals of Biology
Pollination by wind is called _____.
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Stored energy in an object of weight 10 kg at 6m height from earth surface (g = 9.8 ms–2):

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Photosynthesis reaction occurs in the presence of _____.
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Potential energy is equal to?
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What is the yellow dust present in the middle of a flower called?
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General Awareness>General Science>Biology>Fundamentals of Biology
Which of the following wavelength of light is absorbed the most for photosynthesis?
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General Awareness>General Science>Biology>Fundamentals of Biology
Syngamy results in formation of 
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In which of the following reactions is oxygen released into air?

 

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General Awareness>General Science>Biology>Fundamentals of Biology
The green colour of the plant leaf is due to _____.
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General Awareness>General Science>Biology>Fundamentals of Biology
Carbon and energy requirements of an autotrophic organism are fulfilled by _____.
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General Awareness>General Science>Biology>Fundamentals of Biology
Which natural phenomenon conducts carbon dioxide fixation in plants?
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Which of the following is not the main function of root system?
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Which of these is the energy conversion that happens in the process called photosynthesis?
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General Awareness>General Science>Biology>Fundamentals of Biology
Vitamin B12 is generally NOT present in _____.
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Which one of the following is the correct sequence of events during sexual reproduction in plants?

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Which one of the following statements regarding histone proteins is correct?

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General Awareness>General Science>Biology>Fundamentals of Biology
The green colour of plant leaves is due to:
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General Awareness>General Science>Biology>Fundamentals of Biology
Saliva contains enzyme_____:
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General Awareness>General Science>Biology>Fundamentals of Biology
The inflorescence in Sunflower is of the type_____.