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Photosynthesis in Higher Plants

Mizoram Board · Class 11 · Biology

Quick revision notes for Photosynthesis in Higher Plants — Mizoram Board Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.

120 questions20 flashcards5 concepts

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Key Topics to Revise

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1. Introduction to Photosynthesis

  • Photosynthesis is a physico-chemical process where plants use light energy to synthesize organic compounds
  • Green plants are autotrophs - they make their own food through photosynthesis
  • All other organisms (heterotrophs) depend on plants for food
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2. Historical Experiments and Discoveries

  • Priestley's experiment (1770): Plants restore air damaged by burning candles/breathing animals
  • Ingenhousz experiment: Showed sunlight is essential for air purification by plants
  • Julius von Sachs (1854): Provided evidence for glucose production and starch storage
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3. Photosynthetic Pigments

  • Four main pigments: Chlorophyll a, Chlorophyll b, Xanthophylls, Carotenoids
  • Chlorophyll a is the most abundant plant pigment in the world
  • Chlorophyll a appears bright/blue-green in chromatography
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4. Light Reactions (Photochemical Phase)

  • Occurs in thylakoid membranes of chloroplasts
  • Includes light absorption, water splitting, oxygen release, ATP and NADPH formation
  • Two photosystems: PS I (P700) and PS II (P680)

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Full Notes

Key Concepts

The overall equation for photosynthesisChloroplasts contain a membranous systemFour main pigments participate in photosynthesisLight reactions occur in thylakoids involvingThe Calvin cycle occurs in

Frequently Asked Questions

What are the important topics in Photosynthesis in Higher Plants for Mizoram Board Class 11 Biology?
Photosynthesis in Higher Plants covers several key topics that are frequently asked in Mizoram Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Photosynthesis in Higher Plants — Mizoram Board Class 11 Biology?
Understand the core concepts first, then work through the 120 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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