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CBSE Class 11 Biology — Flashcards for Quick Revision

Practice flashcards for CBSE Class 11 Biology. Quick question-and-answer cards for every chapter to boost memory and revision speed.

Quick Summary

Chapter-wise flashcards for CBSE Class 11 Biology. Each card has a question on the front and answer on the back — perfect for quick daily revision using active recall.

How to Use Flashcards

  1. Read the question — try to answer it in your head before flipping.
  2. Check the answer — compare your answer. Mark cards you got wrong for repeat review.
  3. Spaced repetition — review difficult cards more often. Easy cards can be spaced out.
  4. 10–15 minutes daily — short, consistent sessions are more effective than marathon cramming.

Chapter-Wise Flashcards — 19 Chapters

Preview flashcards for each chapter. Each card tests one key concept, definition, or formula from CBSE Class 11 Biology.

1

The Living World

76 cards

Q: What is biodiversity in the living world?

A: Biodiversity means the number and types of organisms present on Earth. Known and described species range between 1.7 and 1.8 million, and new organisms are still being identified.

Q: जीवित जगत में जैव-विविधता क्या है?

A: जैव-विविधता का अर्थ पृथ्वी पर मौजूद जीवों की संख्या और प्रकारों से है। ज्ञात और वर्णित प्रजातियों की संख्या 1.7 और 1.8 million के बीच है, और नए जीव अभी भी पहचाने जा रहे हैं।

Q: Why is standard naming of organisms necessary?

A: Local names vary from place to place, even within a country, so the same organism may be known by different names. Standard naming makes sure that one organism is known by the same name all over the w

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2

Biological Classification

88 cards

Q: Why was a better system of biological classification needed after the two kingdom system?

A: The two kingdom system grouped organisms only into Plantae and Animalia, but it did not separate prokaryotes from eukaryotes, unicellular from multicellular forms, or photosynthetic from non-photosynt

Q: दो राज्य प्रणाली के बाद जैविक वर्गीकरण की बेहतर प्रणाली की आवश्यकता क्यों थी?

A: दो जगत प्रणाली ने जीवों को केवल प्लाण्टा और एनिमेलिया में समूहीकृत किया, लेकिन इसने प्रोकैरियोट्स को यूकेरियोट्स से, एककोशिकीय को बहुकोशिकीय रूपों से, या प्रकाश संश्लेषक को गैर-प्रकाश संश्लेषक जीवों स

Q: Who was Aristotle in the history of biological classification?

A: Aristotle was the earliest scientist to attempt scientific classification. He classified plants into trees, shrubs, and herbs, and animals into red-blooded and non-red-blooded groups using simple morp

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3

Plant Kingdom

70 cards

Q: What are the five main groups of plants in the Plant Kingdom?

A: The five main groups are algae, bryophytes, pteridophytes, gymnosperms, and angiosperms. These groups differ in body organization, reproduction, and the presence or absence of vascular tissue and seed

Q: पादप जगत में पौधों के पाँच मुख्य समूह कौन से हैं?

A: पाँच मुख्य समूह हैं शैवाल, ब्रायोफाइट्स, टेरिडोफाइट्स, जिम्नोस्पर्म और एंजियोस्पर्म। ये समूह शरीर की संरचना, प्रजनन और संवहनी ऊतक और बीजों की उपस्थिति या अनुपस्थिति में भिन्न होते हैं।

Q: Why was Whittaker’s classification important?

A: Whittaker proposed the Five Kingdom classification in 1969. It divided living organisms into Monera, Protista, Fungi, Animalia, and Plantae, giving a broader and more systematic view of living organis

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Frequently Asked Questions

Where can I find CBSE Class 11 Biology Flashcards?

This page provides flashcards for CBSE Class 11 Biology for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.

Biology is one of the scoring subjects in CBSE Class 11 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.

Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.

Flashcards use active recall — one of the most effective study techniques. By testing yourself with question-answer cards, you remember concepts 3× longer than passive reading. Use them daily for 10–15 minutes.

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