Category: Class 12 Biology

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NCERT Solutions For Class 11 Biology Plant Kingdom

NCERT Solutions For Class 11 Biology Plant Kingdom NCERT TEXTBOOK QUESTIONS SOLVED 1.What is the basis of classification of algae? soln. Fritsch (1935), has classified algae considering phylogeny, affinities and inter-relationships of various forms. He classified algae mainly on the basis of the characters like structure of plant body, nature of the pigments, reserve food…
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NCERT Exemplar Problems Class 12 Biology

NCERT Exemplar Problems Class 12 Biology   Chapter 1 Reproduction in Organisms Chapter 2 Sexual Reproduction in Flowering Plants Chapter 3 Human Reproduction Chapter 4 Reproductive Health Chapter 5 Principles of Inheritance and Variation Chapter 6 Molecular Basis of Inheritance Chapter 7 Evolution Chapter 8 Human Health and Diseases Chapter 9 Strategies for Enhancement in…
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NCERT Exemplar Problems Class 12 Biology Chapter 16 Environmental Issues

NCERT Exemplar Problems Class 12 Biology Chapter 16 Environmental Issues Multiple Choice Questions Single Correct Answer Type 1. Non-biodegradable pollutants are created by (a) Nature (b) Excessive use of resources (c) Humans (d) Natural disasters Answer. (c) Non-biodegradable pollutants are created by humans. 2. According to the Central Pollution Control Board, particles that are responsible…
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NCERT Exemplar Problems Class 12 Biology Chapter 15 Biodiversity and Conservation

NCERT Exemplar Problems Class 12 Biology Chapter 15 Biodiversity and Conservation Multiple Choice Questions Single Correct Answer Type 1. Which of the following countries has the highest biodiversity? (a) Brazil (b) South Africa (c) Russia (d) India Answer. (a) Brazil has the highest biodiversity because it is located near equator. 2. Which of the following…
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NCERT Exemplar Problems Class 12 Biology Chapter 14 Ecosystem

NCERT Exemplar Problems Class 12 Biology Chapter 14 Ecosystem Multiple Choice Questions Single Correct Answer Type 1. Decomposers like fungi and bacteria are i. Autotrophs ii. Heterotrophs iii. Saprotrophs iv. Chemo-autptrophs Choose the correct answer: (a) i and iii (b) i and iv (c) ii and iii (d) i and ii Answer. (c) Decomposers like…
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NCERT Exemplar Problems Class 12 Biology Chapter 13 Organisms and Populations

NCERT Exemplar Problems Class 12 Biology Chapter 13 Organisms and Populations Multiple Choice Questions Single Correct Answer Type 1. Autecology is the (a) Relation of a population to its environment (b) Relation of an individual to its environment (c) Relation of a community to its environment (d) Relation of a biome to its environment Answer.…
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NCERT Exemplar Problems Class 12 Biology Chapter 12 Biotechnology and its Applications

NCERT Exemplar Problems Class 12 Biology Chapter 12 Biotechnology and its Applications Multiple Choice Questions Single Correct Answer Type 1. Bt cotton is not (a) A GM plant (b) Insect resistant (c) A bacterial gene expressing system (d) Resistant to all pesticides Answer. (d) Bt cotton is a GM plant, insect resistant and a bacterial…
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NCER Exemplar Problems Class 12 Biology Chapter 11 Biotechnology: Principles and Processes

NCER Exemplar Problems Class 12 Biology Chapter 11 Biotechnology: Principles and Processes Multiple Choice Questions Single Correct Answer Type 1. Rising of dough is due to (a) Multiplication of yeast (b) Production of CO2 (c) Emulsification (d) Hydrolysis of wheat flour starch into sugars. Answer. (b) Dough, which is used for making dosa and idli…
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NCERT Exemplar Problems Class 12 Biology Chapter 10 Microbes in Human Welfare

NCERT Exemplar Problems Class 12 Biology Chapter 10 Microbes in Human Welfare Multiple Choice Questions Single Correct Answer Type 1. The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is (a) Vitamin C (b) Vitamin D (c) Vitamin B12 (d) Vitamin E Answer. (c) The vitamin B12 content…
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NCERT Exemplar Problems Class 12 Biology Chapter 9 Strategies for Enhancement in Food Production

NCERT Exemplar Problems Class 12 Biology Chapter 9 Strategies for Enhancement in Food Production Multiple Choice Questions Single Correct Answer Type 1. The chances of contacting bird flu from a properly cooked (above 100°C) chicken and egg are (a) Very high (b) High (c) Moderate (d) None Answer. (d) Properly cooked (above 100°C) chicken and…
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