Q481
Open questionThe superficial layer of freshwater is constantly stirred by wind and is called
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Biology GK · all questionsPlant Anatomy and Physiology
Plant Anatomy and Physiology
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Q482
Open questionBetween the Arctic ocean and polar ice-caps, and the forests to the south lies a band of treeless, wet, arctic grassland called the
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Q483
Open questionConsider the following statements and choose the correct answer:
1. Both anaerobic respiration and alcoholic fermentation occurs in yeasts
2. Both anaerobic respiration and fermentation are extracellular
3. Fermentation takes place with zymase complex whereas anaerobic respiration takes place with a number of specific enzymes
4. In both, anaerobic respiration and fermentation, carbon dioxide is produced
1. Both anaerobic respiration and alcoholic fermentation occurs in yeasts
2. Both anaerobic respiration and fermentation are extracellular
3. Fermentation takes place with zymase complex whereas anaerobic respiration takes place with a number of specific enzymes
4. In both, anaerobic respiration and fermentation, carbon dioxide is produced
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Q484
Open questionIf cells are kept in some solution and the net result is that the cell swells up, then the solution is . . . . . . . .
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Q485
Open questionCloud's "demographic quotient" is expressed as
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Q486
Open questionWhich of the following has been firmly established as a true fruit-ripening hormone?
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Q487
Open questionThe biomass at any particular moment is called the
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Q488
Open questionPhloem' in plants is mainly responsible for
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Q489
Open questionConsider the following statements of Odum regarding the conditions that maintain biological energy flow in estuaries and choose the correct answer:
1. Tidal action that maintains a rapid removal of waste products of metabolism
2. A variety of plant species and life-forms that provide a continuous photosynthetic process
3. An estuary often functions as a nutrient trap
4. Close contact between autotrophic and heterotrophic layers
1. Tidal action that maintains a rapid removal of waste products of metabolism
2. A variety of plant species and life-forms that provide a continuous photosynthetic process
3. An estuary often functions as a nutrient trap
4. Close contact between autotrophic and heterotrophic layers
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Q490
Open questionWhich of the following is the most modern branch of ecology which is concerned with the analysis and understanding of the function and structure of ecosystem by the use of applied mathematics such as advanced statistical techniques, mathematical models and computer science?
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Q491
Open questionWhich of the following pairs type of nutrient - nutrient is correct?
1. Macronutrient - Iron
2. Micronutrient - Calcium
1. Macronutrient - Iron
2. Micronutrient - Calcium
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Q492
Open questionConsider the following statements and choose the correct answer:
1. The C4 plants can absorb CO2 even from a much low CO2 concentration when the C3 plants fail to avail it
2. The C4 plants require less energy to fix CO2 as compared to C3 plants
3. C4 plants are better adapted to tropical and desert areas where sunlight is more intense and the growing season is longer
4. Maize is a C4 plant
1. The C4 plants can absorb CO2 even from a much low CO2 concentration when the C3 plants fail to avail it
2. The C4 plants require less energy to fix CO2 as compared to C3 plants
3. C4 plants are better adapted to tropical and desert areas where sunlight is more intense and the growing season is longer
4. Maize is a C4 plant
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Q493
Open questionWho among the following wasthe first embryologist, in 1830, to trace the pollen tube of Yucca gloriosa from the stigma to the micropyle?
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Q494
Open questionIn seeds containing large amounts of fat relative to carbohydrate, the respiratory quotient (RQ) values during germination will be considerably
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Q495
Open questionWhich of the following is a developmental equivalent of the association, being a seraI or successional stage, is replaced by other plant communities in succession?
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Q496
Open questionFlower in which pollination takes place through insect, their pollen grains are
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Q497
Open questionWhich one among the following is a micro-nutrient present in soil for various crops?
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Q498
Open questionDark reaction occurs in the stroma of chloroplasts where the products of light reaction are used to
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Q499
Open questionIn which of the following forest types, the atmosphere is excessively humid, annual rainfall exceeds 5000.00 mm per year, the soil consists of rich humus and during day, great heat prevails?
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Q500
Open questionPlants convert fatty acids to carbohydrates due to the operation of two unique glyoxysome enzymes:
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