National Standard Examination in Biology (NSEB) 2015: A detailed analysis by Resonance.

NSEB – 2015

A Detailed Analysis by Resonance

Introduction

On 22nd November 2015, NSEB (National Standard Examination in Biology) – 2015 exam was conducted by the Indian Association of Physics Teachers (IAPT) at many centers all over the country. NSEB is the stepping stage for selection of aspiring and talented students in the Biology Olympiad Program. The student can move forward to other stages only after clearing this stage.

Eligibility: Only Indian citizens born on or after July 1, 1996 and are students studying in Class XII or lower as of November 30, 2015, can apply and appear for NSEB 2015 − 2016. The student has to himself re-assure his eligibility. At any stage if the student is found to be not eligible for the exam, he/she may be disqualified from the program.

Syllabus: The syllabus for National Standard Examination in Astronomy (NSEB) is almost similar as the curriculum of senior secondary level (Class XI and Class XII) of CBSE. However, only basic guideline for the course is mentioned. No detailed syllabus is given for NSEB. There is greater emphasis on Botany and Zoology.

Question Paper: The medium of test was English only and it comprised of 80 objective type questions, each with only one of the four options correct with 3 marks each and -1 negative marking for incorrect answer.

Qualifying for the Second Stage: The basic objective of conducting this test is not focusing on merit but to involve as many students from the country to participate in the exam and try to show and expose their talent. Hence the selection to the stage II examinations i.e. Indian National Olympiad Examinations (INOs) is based on the following scheme.

  • Cutoff: To be eligible to get to the next level, i.e. the second stage, it is necessary that a student scores at-least a Minimum Admissible Score (MAS) which is 40% of the maximum score.
  • Proportional Representation Clause: The maximum number of students that can get to Stage II (INO) in each subject is around 300. These many students are not selected only on the merit basis but also on proportionate basis. This proportion is decided on the base of the number of candidates who appeared for NSE in the previous year from that center in each State or Union Territory (UT). In case there is a tie at the last position, then all the students competing for the last position will be eligible to move to stage II. However it’s necessary that the selected students fulfill the eligibility clause laid out above. The total number to be selected from centers in each State for each subject will be displayed on the IAPT and HBCSE website.
  • Minimum Representation Clause: Notwithstanding the proportional representation clause the number of students selected for INO from each State and UT must be at least one, provided that the eligibility clause is satisfied.
  • Merit Clause: As stated above, approximately 300 students are to be selected for second stage. If this does not happen according to MAS, then after selection as per merit, the shortfall from 300 students will be selected based purely on merit without further consideration to proportional representation and minimum representation clauses. In the event of a tie at the last position in the list all students with the same marks at this position will qualify to appear for the Stage II examination.

There will be no other criterion or provision for selection to the Indian National Olympiad Examinations (INOs). All students who qualify to appear for the INBO get a certificate of merit from IAPT..

Overall Marks Distribution

The paper pattern was same as last year. The paper had 80 questions each worth 3 marks. All questions were objective type with single correct option. The class wise breakup is given below.

SUBJECT Class 11 Class 12 Total
No of Questions Total Marks No of Questions Total Marks No of Questions Total Marks
Biology 48 144 32 96 80 240

Overall Difficulty Level Analysis

In this analysis we have rated every question on a scale of 1 to 3. The ratings are done by expert faculty of Resonance. The individual ratings are then averaged to calculate overall difficulty level.

  • 1: Easy
  • 2: Moderate
  • 3: Difficult
Difficulty Level Count of Question No. Sum of Marks
Easy 34 102
Medium 19 57
Difficult 27 81
Grand Total 80 240
Aggregate Difficulty 1.91

Question Wise Difficulty Breakup

Overall, it is felt by Resonance Faculty Team that paper was on tougher side compared to last year.

Topic Wise Analysis

Unit & Topic Name No of Questions Total Marks % Weightage
Anatomy of Plants 1 3 1.25%
Anatomy of Plants 1 3 1.25%
Biological Classification 11 33 13.75%
Animal kingdom 9 27 11.25%
Biological Classification 1 3 1.25%
Evolutionary Relationshiop 1 3 1.25%
Biomolecules 1 3 1.25%
Biomolecules 1 3 1.25%
Biotechnology 1 3 1.25%
Biotechnology 1 3 1.25%
Cell Biology 10 30 12.50%
Cytology 10 30 12.50%
Chemical Coordination in Animal 1 3 1.25%
Endocrine System 1 3 1.25%
Digestive System in Man 1 3 1.25%
Digestion 1 3 1.25%
Ecology 10 30 12.50%
Adaptation 1 3 1.25%
Ecology 9 27 11.25%
Ecosystem 2 6 2.50%
Ecosystem 2 6 2.50%
Evolution 3 9 3.75%
Evolution 3 9 3.75%
Excretory System of Man 1 3 1.25%
Excretory System of Man 1 3 1.25%
Genetics 9 27 11.25%
Genetics 9 27 11.25%
Histology 1 3 1.25%
Histology 1 3 1.25%
Immune System 1 3 1.25%
Immune System 1 3 1.25%
Mineral Nutrition 2 6 2.50%
Mineral Nutrition 2 6 2.50%
Molecular Genetics 2 6 2.50%
Molecular Genetics 2 6 2.50%
Morphology of Plants 1 3 1.25%
Morphology of Plants 1 3 1.25%
Nervous System in Man 2 6 2.50%
Nervous System in Man 2 6 2.50%
Photosynthesis 6 18 7.50%
Photosynthesis 6 18 7.50%
Plant Anatomy 1 3 1.25%
Plant Anatomy 1 3 1.25%
Plant Growth & Movement 3 9 3.75%
Plant Growth & Movement 3 9 3.75%
Plant Water Relation 1 3 1.25%
Plant Water Relation 1 3 1.25%
Reproduction in Animal 2 6 2.50%
Embrylogy 1 3 1.25%
Reproduction in Animal 1 3 1.25%
Respiration 4 12 5.00%
Respiration 4 12 5.00%
Transport in Plants 3 9 3.75%
Transport in Plants 3 9 3.75%
Grand Total 80 240 100.00%

Expected Cutoff

To be eligible to get to the next level, i.e. the second stage, it is necessary that a student scores at-least a Minimum Admissible Score (MAS) which is 40% of the maximum score.

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