Kerala Board Class 12 Biology Chapter 2: Sexual Reproduction in Flowering Plants Important Questions with Solutions

Sexual Reproduction in Flowering Plants can be challenging for Class 12 learners because it covers biological processes such as pollination, fertilisation and seed formation. Understanding the functions of reproductive parts, remembering key terms and explaining each stage clearly can be difficult, especially while preparing for Kerala Plus Two Biology examinations.

Class 12 Biology Sexual Reproduction in Flowering Plants PDF helps make revision easier by covering important questions and answers from the chapter. Practising these questions helps reinforce concepts, improve answer-writing skills and revise important diagrams and biological processes for the examination.

Kerala Board Class 12 Biology Chapter 2 Questions and Answers

The following questions cover the main concepts of Sexual Reproduction in Flowering Plants. Practising them helps revise definitions, understand fertilisation and prepare answers according to the marks allotted.

One-Mark Questions

Q1. What is pollination?

Answer: Pollination is the transfer of pollen grains from the anther to the stigma of a flower.

Q2. Name the male reproductive part of a flower.

Answer: Stamen.

Q3. What is double fertilisation?

Answer: Double fertilisation is the process in which one male gamete fuses with the egg to form the zygote, and the other fuses with the polar nuclei to form the endosperm.

Q4. Which part of the ovule develops into the seed after fertilisation?

Answer: The ovule develops into the seed.

Two-Mark Questions

Q5. Differentiate between self-pollination and cross-pollination.

Answer:

Q6. Write any two agents of pollination with one example each.

Answer:

• Wind: Maize

• Insects: Hibiscus

Kerala Board Class 12 Biology Chapter 2 Important Questions and Solutions PDF 

The chapter PDF provides important questions to help revise pollination, fertilisation, reproductive structures and seed formation. Reviewing these questions and answers can reinforce key concepts and support exam preparation.

The Kerala HSE 2 Biology syllabus lists the prescribed Biology topics, helping you connect chapter practice with the wider Plus Two syllabus.

How to Prepare for Kerala Plus Two Biology Chapter 2

Revise the chapter topic by topic and practise writing answers in a clear, mark-appropriate format. Focus on the following areas:

• Learn key definitions: Revise terms such as pollination, fertilisation, zygote and endosperm.

• Compare related concepts: Practise the differences between self-pollination and cross-pollination.

• Understand biological processes: Explain pollen germination, pollen tube growth and double fertilisation in the correct sequence.

• Practise diagrams: Draw and label the mature embryo sac, including the egg cell, synergids, polar nuclei and antipodal cells.

• Revise post-fertilisation changes: Remember how the ovule and ovary develop after fertilisation.

• Solve model questions: Practise different question formats using the Kerala Plus Two Biology model paper.

• Check the syllabus: Review the Kerala Class 12 syllabus to understand the prescribed topics.

• Understand the exam format: Check the Kerala Plus Two exam pattern to learn about the examination format.

• Review the marking system: Read about the Kerala Plus Two grading and marking system to understand how answers are evaluated.

• Practise with model papers: Use the Kerala Plus Two model papers to practise questions across subjects and improve exam readiness.

A clear understanding of pollination, fertilisation, embryo sac formation and post-fertilisation changes is essential for answering questions from Sexual Reproduction in Flowering Plants. Practising definitions, diagrams and explanatory answers alongside the Kerala Plus Two syllabus and model papers can help improve accuracy and prepare for the Biology examination.