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HSC Science (General) ११ वीं कक्षा - Maharashtra State Board Question Bank Solutions

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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.

Anitaji needs to micturate several times and feels very thirsty. This is an indication of change in permeability of certain part of nephron. Which is this part?

[15] Excretion and Osmoregulation
Chapter: [15] Excretion and Osmoregulation
Concept: undefined >> undefined

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Write a short note on role of calcium ions in contraction and relaxation of muscles.

[16] Skeleton and Movement
Chapter: [16] Skeleton and Movement
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Enzymes can react with acidic or basic substances due to their ______ nature.

[6] Biomolecules
Chapter: [6] Biomolecules
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Answer the following question.

Calvin cycle consists of three phases, what are they?

[12] Photosynthesis
Chapter: [12] Photosynthesis
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Answer the following question.

Explain the significance of Calvin cycle.

[12] Photosynthesis
Chapter: [12] Photosynthesis
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Write the explanation in your words.

Nitya has been admitted to hospital after heavy blood loss. Till proper treatment could be given; how did Nitya's body must have tackled the situation?

[15] Excretion and Osmoregulation
Chapter: [15] Excretion and Osmoregulation
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Prove that mammalian urine contains urea.

[15] Excretion and Osmoregulation
Chapter: [15] Excretion and Osmoregulation
Concept: undefined >> undefined

Answer the following question.

A fresh section was taken by a student but he was very disappointed because there were only a few green and most colourless cells. Teacher provided a pink colour solution. The section was immersed in this solution and when observed it was much clearer. What is magic?

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Answer the following question.

While observing a section, many scattered vascular bundles could be seen. Teacher said, in spite of this large number the stem cannot grow in girth. Why?

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Answer the following question.

A student was observing a slide with no label under a microscope. The section had some vascular bundles scattered in the ground tissue. It is a section of a monocot stem! He exclaimed. No! it is a section of fern rachis, said the teacher. Teacher told to observe vascular bundle again. Student agreed, Why?

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Answer the following question.

Student while observing a slide of leaf section observed many stomata on the upper surface. He thought he has placed slide upside down. Teacher confirmed it is rightly placed. Explain.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Draw a neat labelled diagram.

T. S. of Dicot leaf

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Draw a neat labelled diagram.

T. S. of dicot stem

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Write the information related to the diagram given below.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Identify the following diagram, label it and prepare a chart of characteristics.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Identify the following diagram, label it and prepare a chart of characteristics.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Identify the following diagram, label it and prepare a chart of characteristics.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Identify the following diagram, label it and prepare a chart of characteristics.

[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined

Distinguish between dicot and monocot leaf on the basis of following characters.

Characters Dicot leaf Monocot leaf
Stomata    
Intercellular space    
Venation    
Vascular bundle    
Mesophyll cells    
[8] Plant Tissues and Anatomy
Chapter: [8] Plant Tissues and Anatomy
Concept: undefined >> undefined
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