BOOK REVIEW – NCERT Xtract – Objective Biology for Class 11 & 12 (Must for AIPMT, AIIMS, AFMC, BHU, AMU, JIPMER, State PMTs, BOARDS, PUC etc.)

 

  • Disha publication has once again come up with another unique quality book which has been created for all medical aspirants, gearing up for medical entrances.
  • This book consists of standardized MCQs as per current NCERT syllabus covering the entire syllabus of 11th and 12th standard.
  • This book-cum-Question Bank spans through 38 chapters in the form of MCQs of multiple variety. MCQs have been prepared in the following types-

1. Facts & Definitions – simple MCQs, filler based etc.

Q.    Which one of the following is smallest living cell and can live without oxygen?(a)   Mycoplasma(b)   Mycorrhiza

(c)   Euglena

(d)   Trypanosoma

2. Diagrams based MCQs

68.   Which one is the correct option for the labelled diagrams A, B, C and D?A         B             C           D(a)   A – Telocentric chromosome, B – Acrocentric chromosome,C – Submetacentric chromosome, D – Metacentric chromosome(b)   A – Acrocentric chromosome, B – Telocentric chromosome,

C – Metacentrichromosome, D – Submetacentric chromosome

(c)   A – Submetacentric chromosome, B – Metacentric chromosome,

C – Telocentric chromosome, D – Acrocentric chromosome

(d)   A – Metacentric chromosome, B – Submetacentric chromosome,

C- Acrocentric chromosome, D – Telocentric chromosome.

3. Reasoning based MCQs

79.   Carbohydrates, the most abundant bimolecule on earth, are produced by(a)   some bacteria, algae and green plant cells.(b)   fungi, algae and green plant cells.

(c)   all bacteria, fungi and algae.

(d)   viruses, fungi and bacteria.

4. Matching based MCQs

Match the following and choose the right optionColumn-I                Column-IIA. Manganese      I. Component of various enzymes and

participate in nitrogen metabolism.

B. Zinc               II. Required for pollen germination and carbohydrate

translocation

C. Molybdenum    III.  Helps in splitting of water to liberate oxygen during photosynthesis

D. Boron             IV.   Needed in the synthesis of auxin

5. Statement Questions MCQs – with single and multiple answers.

45.   Pick out the correct statements(i)   Cytokinins specially help in delaying senescence.(ii)  Auxins are involved in regulating apical dominance.

(iii) Ethylene is especially useful in enhancing seed germination.

(iv)  Gibberellins are responsible for immature falling of leaves.

Which of the above statements are correct-

(a)   (i) and (iii) only      (b)   (i) and (iv) only

(c)   (i) and (ii) only (d)   (ii) and (iii) only

6. Chronological order MCQs

53.   The important step in the process of decomposition in order is(a)   Catabolism ® Fragmentation ® Leaching ® Humification ® Mineralization(b)   Catabolism ® Fragmentation ® Humification ® Leaching ® Mineralization

(c)   Fragmentation ® Humification ® Catabolism ® Leaching ® Mineralization

(d)   Fragmentation ® Leaching ® Catabolism ® Humification ® Mineralization

 

7. Statement 1/ Statement 2 or Assertion – Reason MCQs

37.   Statement 1: DNA is associated with proteins.Statement 2: DNA binds around histone proteins that form a pool and theentire structure is called a nucleosome.(a)   Statement-1 is True, Statement-2 is True, Statement-2 is acorrect explanation for Statement-1

(b)   Statement-1 is True, Statement-2 is True, Statement-2 is NOT a

correct explanation for Statement-1

(c)   Statement-1 is True, Statement-2 is False

(d)   Both the statements are False

 

  • These different types of MCQs will expose you to the various patterns of PMT exams. These MCQs will test your knowledge, understanding of concepts and their practical applications to solve even the toughest questions.
  • Each chapter consists of MCQs of all above variety followed by explanations. The explanations have been provided for all typical MCQs that need conceptual clarity.
  • Keeping NCERT syllabus in mind, the book will help students practice more efficiently.
  • With this book, Disha aims to make a strong base for students to crack entrances including AIPMT, AIIMS, AFMC, BHU, AMU, JIPMER, Kerela PMT, Boards, PUC etc.
  • This book assures complete syllabus coverage by means of questions for more or less, all significant concepts of biology.
  • In nutshell this book will act as the BEST PRACTICE & REVISION MATERIAL for all PMT entrance exams.
  • The book would also be very useful for other exams based on NCERT syllabus up to graduate level.
  • A feature of the book is DETAILED EXPLANATION of each question, which incorporate answer to various other questions on the same issue. Let’s take the following example:
Q. Carbohydrates, the most abundant bimolecule on earth, are produced by(a) some bacteria, algae and green plant cells.(b) fungi, algae and green plant cells.

(c) all bacteria, fungi and algae.

(d) viruses, fungi and bacteria

 

Sol.  (a) Carbohydrates are organic compounds synthesized in the chlorophyll containing cells of some bacteria, algae and green plant cells, during photosynthesis. Certain photoautotrophic bacteria e.g. green sulphur bacteria and purple sulphur bacteria contain pigments like chlorobium chlorophyll and bacteriochlorophyll respectively that helps them in photosynthesis. During photosynthesis carbon dioxide is reduced into carbohydrates by water and oxygen is liberated.

 

After understanding given explanation students can also attempt various questions regarding this issue.

 

Q1.   What is autotrophic nutrition?

Q2.   What are autotrophs?

Q3.   Name the raw materials of photosynthesis.

Q4.   Name the primary photosynthetic pigment.

Q5.   Define photosynthesis.

Q6.   What is the major product of photosynthesis?

Q7.   Differentiate between photoautotrophs and chemoautotrophs.

 

Table of Contents:

1. The Living World

2. Biological Classification

3. Plant Kingdom

4. Animal Kingdom

5. Morphology of Flowering Plants

6. Anatomy of Flowering Plants

7. Structural Organisation in Animals

8. Cell: The Unit of Life

9. Bio molecules

10. Cell Cycle and Cell Division

11. Transport in Plants

12. Mineral Nutrition

13. Photosynthesis in Higher Plant

14. Respiration in Plants

15. Plant Growth and Development

16. Digestion and Absorption

17. Breathing and Exchange of Gases

18. Body Fluids and Circulation

19. Excretory Products and their Elimination

20. Locomotion and Movement

21. Neural Control and Coordination

22. Chemical Coordination and Integration

23. Reproduction in Organisms

24. Sexual Reproduction in Flowering Plants

25. Human Reproduction

26. Reproductive Health

27. Principles of Inheritance and Variation

28. Molecular Basis of Inheritance

29. Evolution

30. Human Health and Disease

31. Strategies for Enhancement in Food Production

32. Microbes in Human Welfare

33. Biotechnology: Principles and Processes

34. Biotechnology and its Applications

35. Organisms and Populations

36. Ecosystems

37. Biodiversities and Conservation

38. Environmental Issues

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