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HSC Science (General) 11th Standard - Maharashtra State Board Question Bank Solutions for Biology

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Biology
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Enzymes can react with acidic or basic substances due to their ______ nature.

[6] Biomolecules
Chapter: [6] Biomolecules
Concept: undefined >> undefined

Answer the following question.

With help of a neat labelled diagram, describe the female reproductive system of cockroach.

[11] Study of Animal Type : Cockroach
Chapter: [11] Study of Animal Type : Cockroach
Concept: undefined >> undefined

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Answer the following question.

How will you identify male or female cockroach?

[11] Study of Animal Type : Cockroach
Chapter: [11] Study of Animal Type : Cockroach
Concept: undefined >> undefined

Explain the following in short:

What is ootheca?

[11] Study of Animal Type : Cockroach
Chapter: [11] Study of Animal Type : Cockroach
Concept: undefined >> undefined

What is RQ?

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

What is the value of RQ for fats?

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Answer the following question.

What are respiratory substrates?

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Answer the following question.

Name the most common respiratory substrate.

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Answer the following question.

What is the advantage of step-wise energy release in respiration?

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Compare Photosynthesis and Respiration.

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Differentiate between Respiration ans combustion.

[13] Respiration and Energy Transfer
Chapter: [13] Respiration and Energy Transfer
Concept: undefined >> undefined

Answer the following question in detail.

Ragini, a 50-year-old office goer, suffered hair-line cracks in her right and left foot in short intervals of time. She was worried about minor jerks leading to hairline cracks in bones. Doctor explained to her why it must be happening and prescribed medicines.

  • What must be the cause of Ragini's problem?
  • Why has it occurred?
  • What precautions she should have taken earlier?
  • What care she should take in the future?
[16] Skeleton and Movement
Chapter: [16] Skeleton and Movement
Concept: undefined >> undefined

Observe the blood report given below and diagnose the possible disorder.

Report D

PERFECT PATHOLOGY              Reg. No:- ______
Dr. ___________                           Date:- _______
Patient name:- __________         Age:- _______ M/F
Reference:-

Examination of Blood

Test                    Result                 Normal value
Uric Acid            9.2                     2.5 - 7.0 mg/dL
Blood Urea         24                     10 - 20 mg/dL
Nitrogen (BUN)

[16] Skeleton and Movement
Chapter: [16] Skeleton and Movement
Concept: undefined >> undefined

Answer the following question.

Small Intestine is very long and coiled. Even if we jump and run, why it does not get twisted? What can happen if it gets twisted?

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Write down the explanation.

Explain the structure of tooth.

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Write down the explanation.

Explain why human dentition is considered as thecodont, diphydont and heterodont.

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Observe the diagram. This is the histological structure of the stomach. Identify and comment on the significance of the layer marked by an arrow.

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Answer the following question.

Digestive action of pepsin comes to a stop when food reaches small intestine. Justify.

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Write down the explanation.

Digestive enzymes are secreted at appropriate time in our body. How does it happen?

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined

Find out pH maxima for salivary amylase, trypsin, nucleotidase and pepsin and place on the given pH scale.

[14] Human Nutrition
Chapter: [14] Human Nutrition
Concept: undefined >> undefined
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