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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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Differentiate between a benign tumor and a malignant tumor.

[10] Human Health and Diseases
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Name the main five types of cancer.

[10] Human Health and Diseases
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What does make idlies puffy?

[11] Enhancement of Food Production
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Milk starts to coagulate when Lactic Acid Bacteria (LAB) is added to warm milk as a starter. Mention any two other benefits of LAB.

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Many microbes are used at home during the preparation of food items. Comment on such useful ones with examples.

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Secondary consumers are __________.

[14] Ecosystems and Energy Flow
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Give an example of an ecosystem that shows an inverted pyramid of numbers.

[14] Ecosystems and Energy Flow
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Give an example of an ecosystem that shows an inverted pyramid of biomass.

[14] Ecosystems and Energy Flow
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Distinguish between the upright and inverted pyramid of biomass.

[14] Ecosystems and Energy Flow
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Describe the mechanism for absorption of water.

[6] Plant Water Relation
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Define the term:

Active absorption

[6] Plant Water Relation
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Long answer question.

Write mechanism of opening and closing of stoma.

[6] Plant Water Relation
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Name one chemical carcinogen with its target tissue.

[10] Human Health and Diseases
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Define ecological pyramids.

[14] Ecosystems and Energy Flow
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Carcinoma is cancer of ______ cells.

[10] Human Health and Diseases
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Inactive gene that can cause cancer is called ______.

[10] Human Health and Diseases
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antiviral proteins released by cells infected by the virus are called ______.

[10] Human Health and Diseases
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What is ‘Leukemia’?

[10] Human Health and Diseases
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Enlist any four therapies used to treat a cancer patient.

[10] Human Health and Diseases
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  1. How is a tumor formed in the body?
  2. What are the two types of tumor?
  3. Which of these under goes metastasis?
[10] Human Health and Diseases
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