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Biology

The document outlines various biological concepts including photosynthesis, respiration types, stomata structure, transpiration, osmosis, enzymes, blood components, human heart structure, nephron structure, and nitrogen-fixing bacteria. It also includes long answer questions on these topics, emphasizing the importance of photosynthesis, respiration types, urine formation, human circulatory system, plant excretion modes, nitrogen cycle, and plant adaptations to reduce transpiration. The content is structured to facilitate understanding of fundamental biological processes and their significance.

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prateeksrivastava7796
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7 views2 pages

Biology

The document outlines various biological concepts including photosynthesis, respiration types, stomata structure, transpiration, osmosis, enzymes, blood components, human heart structure, nephron structure, and nitrogen-fixing bacteria. It also includes long answer questions on these topics, emphasizing the importance of photosynthesis, respiration types, urine formation, human circulatory system, plant excretion modes, nitrogen cycle, and plant adaptations to reduce transpiration. The content is structured to facilitate understanding of fundamental biological processes and their significance.

Uploaded by

prateeksrivastava7796
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Define photosynthesis and write its chemical equation.

What are the differences between aerobic and anaerobic respiration?

Explain the structure and function of stomata in plants.

What is transpiration? Mention two factors affecting its rate.

Define osmosis and explain its role in plant cells.

What are enzymes? State their role in the digestion of food.

Name the components of blood and their primary functions.

Draw a labeled diagram of the human heart.

Describe the structure of a nephron in the human excretory system.

What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

Section B (Long Answer Questions) [30 Marks]


(Answer any 6 questions. Each question carries 5 marks.)

Describe the process of photosynthesis, highlighting its importance.

Explain the different types of respiration with relevant examples.

Describe the structure of a nephron and explain the process of urine formation.

Explain the human circulatory system with the help of a labeled diagram.

Describe the different modes of excretion in plants.


Explain the nitrogen cycle with a labeled diagram and its significance in
nature.

What are the adaptations in plants to reduce transpiration? Explain with


examples.

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