The Central Board of Secondary Education (CBSE) is conducting practical exams and viva voce for the class 12 examinations in 2025. As part of our expert tips series for viva preparation, we present essential guidance for students taking the Biology viva. By following these strategies, students can enhance their readiness and improve their scores. Let’s explore the expert-recommended tips for excelling in the CBSE 12th Biology viva.
Understanding the CBSE 12th Biology Viva Examination
During the viva, examiners assess students in various ways, focusing not just on their theoretical knowledge but also on how well they can apply this knowledge in practical scenarios. Students often wonder what types of questions external examiners might pose during this crucial assessment.
Key Preparation Tips for CBSE 12th Biology Viva
Based on insights from biology educator M.L. Shastri, it is imperative for students to be adequately prepared, especially regarding their project work. An external examiner may begin by asking for the name of the investigative project undertaken by the student, such as:
| Investigation Topics |
|---|
| DNA Model |
| Life Cycle of Malaria |
| HIV Research |
Common Questions Asked in the CBSE 12th Biology Viva
For example, if your project is focused on DNA or DNA replication, you might encounter the following questions:
- What is the full form of DNA?
- What type of sugar is found in DNA?
- What are nitrogenous bases?
- How many hydrogen bonds are found between adenine and thymine?
- Where in a cell can you find DNA and RNA?
- Name the sugar present in RNA.
- Name the nitrogenous bases found in RNA.
- List the different modes of pollination.
- Which do you think is preferred: nature-self pollination or cross pollination?
- Define population and population density.
Additional Questions to Prepare For
Students should also be prepared to answer broader questions on various topics in biology:
- What are nucleic acids?
- Provide examples of high-protein foods.
- Why is meiosis known as reduction division?
- Name two xerophytic plants.
- Name two plants and two organisms that live in aquatic conditions.
- How does the pollination of the hibiscus flower occur?
- List four types of diseases.
- What is somatic cell division?
- What does mitosis mean?
- What type of soil is most suitable for plants?
- What is the male part of a flower called?
- Which part of the flower contains pollen?
- List different types of soils.
- What is an enzyme?
- What is protein? How many types of proteins are there?
Tips for Effective Preparation
Additionally, be prepared to name a biology chapter you are well-versed in when asked by the examiner. Choose a chapter that you have thoroughly studied and can discuss confidently.
Conclusion
By adhering to these expert tips and preparing comprehensively, students can significantly enhance their performance in the CBSE 12th Biology viva. Focus on understanding the concepts, practicing potential questions, and engaging with the material meaningfully to achieve success in your examinations.