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HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

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Small swellings on the surface of the chromosome are called______.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
Concept: undefined >> undefined

Write a note Alzheimer's disease.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

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Define the term Vital capacity.

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
Concept: undefined >> undefined

Match the following:

  Column 'A'   Column 'B'
(Symptoms observed)
(1) Deficiency of Cu (a) Malformed leaves
(2) Deficiency of B (b) Leaves with yellow edges
(3) Deficiency of Zn (c) Brown heart disease
(4) Deficiency of K (d) Die back of shoot
[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
Concept: undefined >> undefined

Enlist different advantages of transpiration.

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
Concept: undefined >> undefined

Define Aneuploidy.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
Concept: undefined >> undefined

Explain the steps involved in preliminary treatment of sewage.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
Concept: undefined >> undefined

Enlist the advantages of biogas.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
Concept: undefined >> undefined

Sketch and label the T.S. of vein.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Which are the bacteria responsible for converting organic acids into methane?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
Concept: undefined >> undefined

Define Endocrine gland

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

Describe the T. S. of thyroid gland

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

add a note on deficiency of thyroxine.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

_______ maintains basic metabolic rate.

(A) Thyroxine

(B) ADH

(C) GH

(D) Oxytocin

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

Explain in brief the biogas production process with the help of a labelled figure.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
Concept: undefined >> undefined

Multiple choice question.

Which one of the following is a set of discrete endocrine glands?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
Concept: undefined >> undefined

What is biogas?

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
Concept: undefined >> undefined

Very short answer type question

Give two examples of biodegradable materials released from the sugar industry.

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: undefined >> undefined

Long answer type question

During large public gatherings like Pandharpur vari mobile toilets are deployed by the government. Explain how this organic waste is disposed of.

[15] Biodiversity, Conservation and Environmental Issues
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: undefined >> undefined

Give scientific reason.

Arteries are thicker than veins.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined
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