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

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Biology
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Name the microorganisms involved in the production of Roquefort cheese, Camembert cheese and Swiss cheese.

[11] Enhancement of Food Production
Chapter: [11] Enhancement of Food Production
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Define the term Vital capacity.

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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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
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Enlist different advantages of transpiration.

[6] Plant Water Relation
Chapter: [6] Plant Water Relation
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Define Aneuploidy.

[3] Inheritance and Variation
Chapter: [3] Inheritance and Variation
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Sketch and label the T.S. of vein.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Sketch and label the V. S. of pituitary gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Very very short answer question.

What is the cause of abnormal elongation of long bones of arms and legs and of the lower jaw?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Short answer question

Where is the pituitary gland located? Enlist the hormones secreted by the anterior pituitary.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Long answer question

Explain the role of the hypothalamus and pituitary as a coordinated unit in maintaining homeostasis?

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

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Give scientific reason.

Arteries are thicker than veins.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Why can you feel a pulse when you keep a finger on the wrist or neck but not when you keep them on a vein?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Long answer question:

Which blood vessel of the heart will have the maximum content of oxygen and why?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Long answer question:

How blood is kept moving in the large veins of the legs?

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Long answer question:

Describe the histological structure of the artery, vein, and capillary.

[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
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Which disease is caused by hyper secretion of Glucocorticoids?

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Sketch and label V.S of Pituitary gland.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Give the names of the hormones released by neurohypophysis.

A boy shows excessive thirst and micturition because of deficiency of a hormone secreted by neurohypophysis. Name the disease he is suffering from.

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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Describe any four hormones secreted by Adenohypophysis. 

[9] Control and Co-ordination
Chapter: [9] Control and Co-ordination
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