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HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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Give a graphic representation of cyclic photophosphorylation.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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What are 'biofertilizers'? Explain them with suitable examples.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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What is a heterocyst?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Why Chl-a (Chlorophyll-a) is Called Essential Pigment?

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Give the meaning of the Nif gene.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Name the aquatic fern commonly used in paddy fields as a biofertilizer.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Identify free-living bacterial bio-fertilizer.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Very short answer question.

Give symptoms of the disease caused by hyposecretion of ADH.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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What is allosome?

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Compare X chromosome and Y chromosome.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Which one of the following is a free-living bacterial biofertilizer?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Name any two bacterial biofertilizers.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Define estuary.

[11] Enhancement of Food Production
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With the help of a neat labelled diagram, describe the structure of chromosome.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Long answer type question.

Describe the different types of chromosomes.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Define the term:

Guttation

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Explain the term:

Transpiration

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Answer the following question.

Enlist macronutrients and micronutrients required for plant growth.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Function of Zinc is ______.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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Short Answer Question:

Enlist the role and deficiency symptoms of Nitrogen.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
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