CBSE Class 12 Biology Question Paper 2005 (3)

Scroll down for PDF

CBSE Class 12 Biology Question Paper 2005 (3). Students can download the last year question papers using the link below. Free download of examination question papers with solutions.Last 10 year question papers should be practised to get better marks in examinations.

SECTION - A

Q1. Where are the pigments forming the photosynthesis located in the chloroplasts?

Q2. What does “leg” in leghaemoglobin refer to? Why this pigment is called oxygen-scavenger?

Q3. Name the category of regeneration, which involves the repattering of the whole body from small fragments. Name one animal in which it occurs.

Q4. Name the antifreeze compounds that help the fishes living in Antarctica in seawater even at temperature below 00 C.

Q5. What is tissue-typing in organ transplantation in humans’?

SECTION - B

Q6. What is oxidative decarboxylation of pyruvic acid? When does it occur?

Q7. A person is suffering from calcium deficiency in spite of taking a calcium rich diet. Explain how this condition may have occurred.

Q8. What is chloride shift? Explain.

Q9. How are the two heart sounds produced during cardiac cycle? Which one of these is of longer duration? 

Q10. Mention any two differences between auxetic growth and multiplicative growth.

Q11. Give the collective term for chemicals such as hyaluronidase and arccosine.Where are they contained? Give the function of any one of them.

Q12. Name the two basic types of competition found amongst organisms.Which one these is more intense and why?

Q13. What does the term biodiversity refer to? Mention any two factors which pose threat to biodiversity.

Q14. What is acne? How acne is considered the commonest problem of almost all adolescents?

Q15. Define mutation.List the three way in which mutations can arise.

Or

How is mutation breeding carried out for developing crop varieties?

Please click the link below to download pdf file of CBSE Class 12 Biology Question Paper 2005 (3).

Tags: 


Click on the text For more study material for Biology please click here - Biology

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Counseling for Board exam 2020 starts today

The 23rd psychological Counseling starts 1st February (today) for The Class10 and Class12 CBSE students and their parents, by the Central Board of Secondary Education (CBSE).    This Counseling service is cost-free and this counseling service will be available every...

Simple tips to Excel in Examinations

We are entering the last quarter of the Academic Session. With examinations just around the corner, I am sure all of us are carrying a mixed bag of Stress, Excitement, and Anxieties!! So, first and foremost- Let’s be Positive and Futuristic! It’s most important to...

CBSE Board Exam Date Sheet of class 10th and 12th

The Central Board of Secondary Education (CBSE) released the Date sheet of Class 10 and Class 12th 2020 examination on the official website cbse.nic.in. The board examination of Class 12 will be conducted from 15 February to 30 March 2020, while the board examination...

×
Studies Today