CBSE Class 11 Biology OTBA Sample Paper (2)

 CBSE Class 11 Biology OTBA Sample Paper (2) CBSE,CCE and NCERT students can refer to the attached file. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. The study material available on our website for all CBSE classes and subjects have been prepared by teachers from all over the country. All study material has been carefully designed keeping into mind the latest CBSE examination trends.  

Open Text Book Assessment 2013-14

For Session Ending Examination, March 2014

Sample Paper Class-XI (BIOLOGY)

Theme: Life and Living

Students of class XI (Science) having Biology as an elective subject and appearing in the Annual Examination / Session Ending examination in March 2014 may note that the theory QP of 70 marks will be containing 10 marks OTBA. Accordingly the mark distribution among the different units (I-V) as per the NCERT book / CBSE Syllabus has been changed. Please follow the new mark distribution given by CBSE. About 3-4 questions will be asked from the text provided for 10 marks. Here different types of questions are being given for your practice.

Some questions whose answers are beyond the text have been included to improve your knowledge on the subject. The questions are extensions and relevant to this text.

One Mark Questions

Q.1 Study statistics-1 and comment on the questions:

a) For how many years 57.3% people want to live?

b) What percent of people want to live for 120 years? ½+½

Ans.

a) 80 Years

b) 29.1

Q What are couch potatoes? 1

This term is used for people who prefer to stay indoors sitting on sofa eating and watching

the TV for long hours of leisure rather than playing outdoors or doing some physical

exercise. It leads to obesity and related disorders.

Two Mark Questions

Q. How has the picture of “India shining” proved detrimental to the country’s youth? 2 Ans. India shining has been reflected through the economic growth and prosperity which the country can boast of. Unfortunately this trend has caused youth concentrating in the metros and progressive urban cities. To earn higher and at a faster rate and fulfil their corporate life styles compels them to work for longer periods and adopt indiscipline life styles causing serious health problems which are being neglected.

Q What difference in eating habits is seen in the present youth compared to the past generations?

Ans. Fast food and eating out are an integral part of modern teenagers. Self -planned diet programs are made by them either to be slimmer (for girls) or be more muscular (for boys) is causing serious damage to their health which is a matter of concern. In modern living and job nature there has been a significant reduction in physical exercise and significantly increase in high calorie diet leading to obesity and related disorders. Working with other countries having a different time slot like the US versus India.

Q. What is Vision 2020? 2

India Vision 2020 was initially a document prepared by the Technology Information,Forecasting and Assessment Council (TIFAC) of India's Department of Science and Technology under the chairmanship of Dr. A P J Kalam and a team of 500 experts. The details of this plan may be read in the book India 2020: A Vision for the New Millennium, which Dr. A P J Abdul Kalam coauthored with Dr. Y.S. Rajan. Education and Health care is one of the five areas identified where illiteracy, social security and overall health of the population will be taken care of.

Q. Study picture -2 and answer the following questions:

a) What percent of boomers admit that they exercise less than once a week?

b) What do 30% people think about their health?

a) 20% i.e 1 out of 5 think that they exercise less than once a week

b) 30% think that they are always under stress.

Q. If you study the statistics given by NIH (refer to statistics-5) on prevalence of smoking, it is found that there is a decline in the percentage of adult smokers compared to high school smokers. What can be the possible reason? Give your own thoughts.

a) High school students are teenagers. Their curiosity, transitory adult attitude and heroism attract smoking.

b) Misconception that smoking relieves stress and mental tiredness increases young smokers.

c) By the time they grow into adults, many realize the ill effects of smoking, some suffer from health problems and give up smoking. Naturally the percentage of adult smokers’ reduces.

Q. Enumerate the economic loss India is expected to incur only due to unhealthy life styles.

Ans. a) India is expected to incur a loss of 236.65 Billion by 2015 due to poor life style and defective diet.

b) 31.2% urban population is obese

c) 2 out of 3 employees are victim of stress

d) India became the Diabetic capital of the world

e) India leads any other country by 4% in having life style diseases.

Three Mark Questions

Q. Growth of professionalism in youth is leading to serious health hazard. Explain how?

Ans. It has caused drastic change in lifestyle due to their higher income. Consuming high calorie fast food, smoking, alcoholism and also drug consumption has become more dependable than the traditional life styles. The tension for completing the time bound work led to long hours sitting in front of computer screens ending up the day with

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