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

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Distinguish between open circulation and closed circulation.

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

Long answer question:

Smita was working in a garage with the doors closed and automobile's engine running. After some time she felt breathless and fainted. What would be the reason? How can she be treated?

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

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The resting potential of a neuron is ______.

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

What is the covering of nerve fascicule called?

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

Explain the following terms with respect to rDNA technology

  1. passanger DNA
  2. Chimeric DNA
  3. Transformed cell
  4. restriction site
[12] Biotechnology
Chapter: [12] Biotechnology
Concept: undefined >> undefined

India boasts a handsome share of ______ % of total biodiversity wealth of the earth.

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

In human respiration, chemical energy is released in the form of ______.

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

The volume of air that remains in the lungs after maximum respiration is ______.

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

Define total lung capacity.

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

Define Bohr effect and Haldane effect.

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

Give any two effects of carbon monoxide poisoning.

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

Distinguish between inspiration and expiration.

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

Define Hamburger’s phenomenon. Add a note on it.

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

With the help of labelled diagram explain the exchange of gases between alveolus and capillary.

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

What is phosphorylation?

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

What is Dead Space?

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

In Hamburger’s phenomenon, ______.

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

Describe the steps in breathing.

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

Define genomic library.

[12] Biotechnology
Chapter: [12] Biotechnology
Concept: undefined >> undefined

Give reason: All the fragments of a genome are cloned for storing them in genomic library.

[12] Biotechnology
Chapter: [12] Biotechnology
Concept: undefined >> undefined
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