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Tools and Techniques

CBSE · Class 11 · Biotechnology

Flashcards for Tools and Techniques — CBSE Class 11 Biotechnology. Quick Q&A cards covering key concepts, definitions, and formulas.

90 questions108 flashcards5 concepts

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108 Flashcards
Card 1सूक्ष्मदर्शी

सूक्ष्मदर्शी क्या है और जीव विज्ञान में यह क्यों महत्वपूर्ण है?

Answer

सूक्ष्मदर्शी (माइक्रोस्कोपी) उन वस्तुओं को देखने की तकनीक है जो इतनी छोटी होती हैं कि उन्हें नग्न आंखों से स्पष्ट रूप से नहीं देखा जा सकता है। यह बहुत छोटी संरचनाओं और यहां तक कि सूक्ष्म वस्तुओं की त्

Card 2Microscopy

What is microscopy and why is it important in biology?

Answer

Microscopy is the technique used to see objects that are too small to be seen clearly with the naked eye. It helps in studying very small structures and even the three-dimensional structure of minute

Card 3Microscopy

Who designed the first simple microscope and what did this lead to in biology?

Answer

Robert Hooke designed the first simple microscope in 1665 using magnifying lenses. He observed cork slices and coined the term cellulae or cell for the honeycomb-like structure. This became a major st

Card 4सूक्ष्मदर्शी

पहला साधारण सूक्ष्मदर्शी किसने डिजाइन किया और जीव विज्ञान में इसका क्या परिणाम हुआ?

Answer

रॉबर्ट हुक ने 1665 में आवर्धक लेंस का उपयोग करके पहला सरल सूक्ष्मदर्शी बनाया। उन्होंने कॉर्क के स्लाइस का निरीक्षण किया और मधुकोश जैसी संरचना के लिए सेल्युला या सेल शब्द गढ़ा। यह कोशिकाओं और कोशिका सं

Card 5सूक्ष्मदर्शी

कोशिका सिद्धांत क्या है और इसका प्रस्ताव किसने रखा?

Answer

कोशिका सिद्धान्त के अनुसार जीव कोशिका से बने होते हैं और कोशिकाएँ ही जीवन की मूल इकाई हैं। मथियास याकूब श्लेडेन और थियोडोर श्वान ने सन् १८३८ में पौधों और प्राणियों में कोशिकाओं के अवलोकन के आधार पर को

Card 6Microscopy

What is cell theory and who proposed it?

Answer

Cell theory states that living organisms are made of cells and that cells are the basic unit of life. Matthias Jacob Schleiden and Theodor Schwann proposed cell theory in 1838 based on observation of

Card 7Microscopy

What is magnification in a microscope?

Answer

Magnification is the ability by which retinal image size can be increased through a microscope. In a compound microscope, total magnification equals objective magnification multiplied by eyepiece magn

Card 8सूक्ष्मदर्शी

सूक्ष्मदर्शी में आवर्धन क्या होता है?

Answer

आवर्धन वह क्षमता है जिसके द्वारा सूक्ष्मदर्शी के माध्यम से रेटिना के प्रतिबिम्ब के आकार को बढ़ाया जा सकता है। संयुक्त सूक्ष्मदर्शी में, कुल आवर्धन वस्तुनिष्ठ आवर्धन और नेत्रिका आवर्धन के गुणनफल के बरा

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Frequently Asked Questions

What are the important topics in Tools and Techniques for CBSE Class 11 Biotechnology?
Tools and Techniques covers several key topics that are frequently asked in CBSE 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 Tools and Techniques — CBSE Class 11 Biotechnology?
Understand the core concepts first, then work through the 90 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Tools and Techniques?
There are 108 flashcards for Tools and Techniques covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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