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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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Write a short note on Proliferative Phase.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

Write a short note on Secretory Phase.

[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

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Complete the following table.

Waves on ECG Heart activity Reason for formation
P. wave ____________ ____________
QRS wave ____________ ____________
Twave ____________ ____________
[8] Respiration and Circulation
Chapter: [8] Respiration and Circulation
Concept: undefined >> undefined

Write a note on pineal gland.

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

Comment on Heart Transplant. 

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

Comment on Silent Heart attack.

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

Complete the table:

Number Type No. of pairs Region
C1C8 Cervical ______ Neck
T1T12 ______ 12 pairs ______
L1L5 Lumbar ______ Lower back
S1S5 ______ 5 pairs ______
CO1 Coccygeal ______ ______
[2] Reproduction in Lower and Higher Animals
Chapter: [2] Reproduction in Lower and Higher Animals
Concept: undefined >> undefined

How is blood pressure measured?

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

Explain the factors affecting blood pressure.

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

What is normal blood pressure?

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

Give the schematic representation of the TCA cycle.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
Concept: undefined >> undefined

In the electrocardiogram shown below, which wave represents ventricular diastole?

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

Define chemoautotrophs.

[7] Plant Growth and Mineral Nutrition
Chapter: [7] Plant Growth and Mineral Nutrition
Concept: undefined >> undefined

Hormone thyroxine, adrenaline, and nonadrenaline are formed from _____________.

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

How does the tongue detect the sensation of taste?

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

Short answer question

Which are the 2 types of goitre? What are its causes?

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

Long answer question.

What will be the effect of thyroid gland atrophy on the human body?

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

Long answer question

Describe in brief an account of disorders of the thyroid.

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

Give one example of the autosomal recessive disorder.

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

Short Answer Question.

Write note on –PKU.

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