Q641
Open questionThe decrease in quantum yield noted by Emerson is generally referred to as the
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Biology GK · all questionsPlant Anatomy and Physiology
Plant Anatomy and Physiology
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Q642
Open questionPollens are produced in
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Q643
Open questionThe development of a fruit without fertilisation is called
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Q644
Open questionThe movement of protoplasm in clockwise or anti-clockwise manner inside the plant cell is known as
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Q645
Open questionCoenzyme A contains the most important physiologically active part called
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Q646
Open questionWhich of the following periods in a plant life is also known as grand period of growth?
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Q647
Open questionAccording to Odum, which of the following is the common and wide-spread type in nature which begins in a predominantly inorganic environment and is characterised and dominated by autotrophic organisms?
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Q648
Open questionThe amount by which respiration is increased over normal has been labelled
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Q649
Open questionAccording to Palladin, the precursor of chlorophyll is
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Q650
Open questionThe distribution of a taxon throughout the tropical belt is called
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Q651
Open questionWhich of the following are also called as 'drought evaders' or 'drought escapers'?
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Q652
Open questionConsider the following statements and choose the correct answer:
1. At low temperature, the viscosity of water increases
2. Low temperature retards the growth of the roots
3. At low temperature, viscosity of protoplasm and cell wall decreases
4. Low temperature increases the metabolic activities of the root cells
1. At low temperature, the viscosity of water increases
2. Low temperature retards the growth of the roots
3. At low temperature, viscosity of protoplasm and cell wall decreases
4. Low temperature increases the metabolic activities of the root cells
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Q653
Open questionHaberlandt (1922) has given the "necrohormone" theory for the production of
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Q654
Open questionThe porphyrin head of chlorophyll is made up of porphyrin system in which four pyrole rings are linked together by
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Q655
Open questionProcess by which plant prepare their food is
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Q656
Open questionYellow spots on citrus leaves is due to the deficiency of
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Q657
Open questionThe commonest characters found in case of total phanerogamic parasite include
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Q658
Open questionWhich of the following forests are also called Selvas?
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Q659
Open questionUstilago tritici absorbs nutrition from the host cells by
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Q660
Open questionThe first hint that apical dominance might be because of auxin produced at the terminal bud and transported downward through the stem was given by
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