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NEET - Grade 11 - Biology - Mineral Nutrition - Importance and Snapshot of Mineral Nutrition - Study ref# 770
Introduction: The basic needs of all living organisms are essentially the same. They required macromolecules, such as carbohydrates, proteins and fats, and water and minerals for their growth and development. This chapter focusses main...
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NEET - Grade 11 - Biology - Plant Growth and Development - Importance and Snapshot of Plant Growth and Development - Study ref# 779
Introduction: Have you ever thought about where and how the structures like roots, stems, leaves, flowers, fruits and seeds arise and that too in an orderly sequence? You are, by now, aware of the terms seed, seedling plantlet, mature ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Importance and Snapshot of Plant Growth and Development - Study ref# 780
Following sections must be covered to understand the Plant Growth and Development: 1. Growth 2. Differentiation, Dedifferentiation and Redifferentiation 3. Development 4. Plant Growth Regulators 5. Photoperiodism 6. Vernalisat...
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NEET - Grade 11 - Biology - Plant Growth and Development - Target Setup for Plant Growth and Development - Study ref# 781
Student requires to achieve the following milestones to get better grip over Plant Growth And Development. The milestones / targets are as follows:Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter ...
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NEET - Grade 11 - Biology - Digestion and Absorption - Importance and Snapshot of Digestion and Absorption - Study ref# 782
Introduction: Food is one of the basic requirements of all living organisms. The major components of our food are carbohydrates, proteins and fats. Vitamins and minerals are also required in small quantities. Food provides energy and o...
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NEET - Grade 11 - Biology - Morphology of Flowering Plants - Study ref# 3822
Define flower. What is inflorescence? Define two major types of inflorescence. Answer: The flower is a modified shoot wherein the shoot apical meristems changes to floral meristems. It is a modified reproductive shoot and hence helps in reproduction,...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4651
Mention three strategies by which plant growth takes place? Answer: Growth is accomplished by three strategies: a) Cell division b) Cell enlargement and c) Secretion of extracellular materials. ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4652
State different factors involve in the development of plant? Answer: Different factors involve in development are Intrinsic − Genetic factors and plant growth regulators Extrinsic − Light, temperature, water, oxygen, et...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4653
State few functions of gibberellins? Answer: It helps in increasing the length of plants. It is also associated with increase the shape and size of fruits. It delay senescence. It also trigger the malting process in brewing in...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4654
Write down functions of ethylene? Answer: It promotes senescence and abscission in plants. It increase ripening of fruits. It also increase the rate of respiration in plats. It breaks seed and bud dormancy. ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4655
Define growth rate? Describe its type? Answer: Growth rate may be defined as the increase in growth per unit time. Plants show two types of growth Arithmetic growth Only one daughter cell continues to divide while others differentiate ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4656
Define photoperiodism and mention its types? Answer: Photoperiodism: It may be defined as the response of plants to periods of day/night (i.e., light). It may be of three types: Long Day Plants − Plants (such as spinach, r...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4657
State one importance of senescence? Answer: It maintain the efficiency since the older exhausted and inefficient parts are replaced with new one (leaves, buds etc). ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4658
Short day plants generally flower in .................... periods Answer: Autumn- spring ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4659
Give one example of natural auxin? Answer: IAA...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4660
Name one instrument use to measure the growth of plant? Answer: Auxanometer....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4661
What are the different phases of growth curve? Answer: Lag phase Log phase Stationary phase...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4662
Define seed dormancy? list few factors involves in seed dormancy? Name few methods used to break seed dormancy? Answer: Seed dormancy or rest is the innate inhibition of germination of a viable seed even placed in most favorable environment fo...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4663
Describe vernalization with an example? Answer: Vernalization: It may be defined as the phenomenon of dependence of flowering on exposure to low temperature. Example: In Biennials plants like sugarbeet, cabbages, carrots, vernalizat...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4664
Define growth? Answer: Growth: It can be defined as an irreversible permanent increase in size of an organ or its parts or even of an individual cell. Generally, growth is accompanied by metabolic processes (both anabolic and catabolic),...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4665
What do you mean by dedifferentiated cells? Answer: Those differentiated cells regain their capacity to divide....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4666
Example of differentiated cells? Answer: Cells of root and shoot apical meristems and cambium. ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4667
Define re-differentiation? Answer: Differentiated cells that have lost their ability to divide are reformed from dedifferentiated cells and have the ability to perform specific functions....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4668
Light is an --------- factors involve in development of plant. Answer: Extrinsic....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4669
Example of two intrinsic factors involves in plant development? Answer: Genetic factors and plant growth regulators...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4670
Write two examples of auxin? Answer: Indole acetic acid (IAA) and Indole butyric acid (IBA)....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4671
Name one auxins that is widely used as herbicides. Answer: 2,4-Dichlorophenoxyacetic acid (2,4 – D). ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4672
Write four function of auxin? Answer: It helps in initiate rooting in cutting stem, thus helps in propagation of plants. It promotes flowering. It prevents fruit and leaf drop. It promote abscission of older mature leaves. ...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4673
Plant hormone that controls xylem differentiation and helps in cell division is .................. Answer: Auxin...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4674
Parthenocarpy is induced by which plat hormone. Answer: Auxin...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4675
Plant hormone that promotes bolting? Answer: Gibberellins....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4676
Give one example of gaseous hormone in plants ? Answer: Ethylene...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4677
The closing of stomata is influenced by .................. hormone. Answer: Abscisic Acid...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4678
..................... hormone enhanced flowering in plants. Answer: Ethylene...
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4679
List few example of long day plant? Answer: Spinach, radish, lettuce and sugar beet....
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NEET - Grade 11 - Biology - Plant Growth and Development - Study ref# 4680
List few plants which start flowering before the critical day-length? Answer: Rice, chrysanthemum, cotton, tobacco, poinsettias, soyabeans....
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