Plant Growth and Development — Flashcards
CBSE · Class 11 · Biology
80 flashcards for Plant Growth and Development (CBSE Class 11 Biology) to test yourself on key terms and facts. Sample: "What is growth in plants?"
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What is growth in plants?
Answer
Growth is an irreversible permanent increase in size of an organ, its parts, or even a single cell. It is usually accompanied by anabolic and catabolic metabolic processes that use energy.
पौधों में वृद्धि क्या है?
Answer
वृद्धि (Growth) किसी अंग, उसके भागों या एक अकेली कोशिका के आकार में अपरिवर्तनीय स्थायी वृद्धि है। यह आमतौर पर ऊर्जा का उपयोग करने वाली उपापचय और अपचय चयापचय प्रक्रियाओं के साथ होता है।…
Why is plant growth called indeterminate?
Answer
Plants retain the capacity for unlimited growth throughout life because meristems keep dividing and adding new cells. This is called open form of growth.
पौधे की वृद्धि को अनिश्चित क्यों कहा जाता है?
Answer
पौधे जीवन भर असीमित वृद्धि की क्षमता बनाए रखते हैं क्योंकि मेरिस्टेम विभाजित होते रहते हैं और नई कोशिकाओं को जोड़ते रहते हैं। इसे वृद्धि का खुला रूप कहा जाता है।…
What is a meristem?
Answer
A meristem is a region of actively dividing cells in a plant. Root apical meristem, shoot apical meristem, vascular cambium, and cork cambium are important examples.
मेरिस्टेम क्या होता है?
Answer
अवकल ऊतक (meristem) किसी पौधे में सक्रिय रूप से विभाजित हो रही कोशिकाओं का क्षेत्र होता है। मूल अग्रिक अवकल ऊतक, प्ररोह अग्रिक अवकल ऊतक, संवहनी कैम्बियम और कॉर्क कैम्बियम इसके महत्वपूर्ण उदाहरण हैं।…
What are the main phases of growth?
Answer
The three phases are meristematic, elongation, and maturation. Meristematic cells divide actively, elongation cells enlarge rapidly, and maturation cells reach full functional size and specialization.
विकास के मुख्य चरण क्या हैं?
Answer
तीन चरण हैं मेरिस्टेमेटिक, दीर्घीकरण और परिपक्वता। मेरिस्टेमेटिक कोशिकाएँ सक्रिय रूप से विभाजित होती हैं, दीर्घीकरण कोशिकाएँ तेजी से बढ़ती हैं और परिपक्वता कोशिकाएँ पूर्ण कार्यात्मक आकार और विशेषज्ञता…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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