CBSE Class 11 Biology — Flashcards
CBSE Class 11 Biology flashcards, chapter by chapter — 1508 flashcards across 19 chapters. Follows the CBSE syllabus.
How to Use Flashcards
- Read the question — answer it in your head before flipping.
- Check the answer — mark the cards you got wrong.
- Repeat the hard ones — review wrong cards more often, easy ones less.
- Little and often — short daily sessions beat long cramming sessions.
Chapter-Wise Flashcards — 19 Chapters
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
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
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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Where can I find CBSE Class 11 Biology Flashcards?
This page has flashcards for 19 chapters of CBSE Class 11 Biology for the 2026-27 session. Each chapter links to its own page with the full set.
How should I prepare for CBSE Class 11 Biology exams?
Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.
How do I use flashcards for CBSE Class 11 Biology?
Read the question side, answer it in your head, then check. Put the cards you got wrong back into the pile and review them again the next day. Short daily sessions work better than long ones.
Browse Flashcards by Chapter
19 chapters
The Living World
Biological Classification
Plant Kingdom
Animal Kingdom
Morphology of Flowering Plants
Anatomy of Flowering Plants
Structural Organisation in Animals
Cell : The Unit of Life
Biomolecules
Cell Cycle and Cell Division
Photosynthesis in Higher Plants
Respiration in Plants
Plant Growth and Development
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
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