Karnataka 1st PUC Biology Chapter 10 Cell Cycle and Cell Division Important Questions

Chapter 10 of Karnataka 1st PUC Biology, Cell Cycle and Cell Division, explains how cells grow, replicate their DNA, and divide to form new cells. The chapter covers the different stages of the cell cycle, mitosis, meiosis, and the changes that take place in chromosomes during cell division.

Understanding the sequence of these stages is important for answering questions from this chapter. These Karnataka 1st PUC Biology Chapter 10 Important Questions cover key concepts and help students practise multiple-choice questions before their examinations.

Important Questions for Karnataka 1st PUC Biology Chapter 10

The official PDF includes questions on interphase, mitosis, meiosis, chromosome behaviour, and cytokinesis. You can also refer to the Karnataka Board Class 11 Biology syllabus to review the subject coverage for the academic session.

Q1: Human cells in culture show a cell cycle to be completed in approximately

(A) 42 hours

(B) 24 hours

(C) 24 hours

(D) 24 days

Q2: Yeast cell divides once in approximately every

(A) 90 minutes

(B) 9 minutes

(C) 24 minutes

(D) 24 seconds.

Q3. Which one is the correct sequence of a cell cycle?

(A) G2 → M → G1 → S

(B) S → G2 → M → G1

(C) G1→ S → G2 → M

(D) M → G1 → S → G2

Q4. A cell cycle includes

(A) Interphase and M-phase/divisional phase

(B) Prophase, metaphase, anaphase and telophase

(C) G1, S and G2 phases

(D) Karyokinesis and cytokinesis

Q5. Which of the following phases of the cell cycle is not a part of interphase?

(A) S

(B) G1

(C) G0

(D) M

Q6. To build up food reserves in the cytoplasm, chromosomes become unfolded to start transcription of mRNA and rRNA during which phase of meiosis - I?

(A) Diakinesis

(B) Zygotene

(C) Diplotene

(D) Leptotene 

Q7: Non-dividing cells like heart cells and nerve cells are in ______ phase.

(A) G1

(B) G2

(C) G4

(D) G0 

Q8: The cells that do not divide further, exit G1 phase to enter an inactive stage called _______ of the cell cycle.

(A) G1 stage

(B) G2 stage

(C) S stage

(D) G0 stage 

Q9: ________ is the best stage to count the number and study the morphology of chromosomes.

(A) Prophase

(B) Metaphase

(C) Anaphase

(D) Telophase 

Q10: Condensation of chromosomes occurs in

(A) prophase I

(B) prophase II

(C) anaphase

(D) metaphase 

Karnataka 1st PUC Biology Chapter 10 Question Bank PDF

Students preparing for the 2026–27 academic session can refer to the chapter-wise Biology question material released by the Department of School Education (Pre-University), Government of Karnataka.

For additional practice, students can also refer to the Karnataka 1st PUC Biology Model Question Paper.

Benefits of Using Cell Cycle and Cell Division Important Questions

Practising chapter-wise MCQs helps students revise important biological processes and understand the differences between the stages of cell division. The Karnataka Board 1st PUC Biology Chapter 10 Question Bank PDF provides questions that can be used for concept revision and self-assessment.

1. Helps Understand the Stages of the Cell Cycle

Questions based on G1, S, G2 and M phases help students understand the sequence of events during the cell cycle. They also reinforce concepts such as DNA replication, cell growth and preparation for division. Students can refer to the Karnataka 1st PUC syllabus while planning their revision.

2. Strengthens Understanding of Mitosis and Meiosis

Mitosis and meiosis involve different stages and chromosome-related changes. Practising questions on prophase, metaphase, anaphase and telophase helps students understand how chromosomes behave during each division. The questions also cover synapsis, crossing over and reduction in chromosome number.

3. Supports Regular MCQ Practice

Solving these questions helps students become familiar with different question formats. Referring to the Karnataka 1st PUC exam pattern can also help them understand the examination structure.

4. Makes Self-Assessment Easier

The official PDF provides separate answer keys for classroom discussion and practice questions. Students can attempt the questions independently and use the keys to check their responses. They can also practise with Karnataka 1st PUC mid-term question papers with answer keys to review their preparation.

Regular revision of the cell cycle, mitosis and meiosis, along with MCQ practice, can help students build a clearer understanding of the chapter.

Cell Cycle and Cell Division includes several stages and processes that require a clear understanding of chromosome behaviour and cell division. Revise the sequence of the cell cycle, learn the stages of mitosis and meiosis, and practise questions from the official question bank. 

These Karnataka 1st PUC Biology Chapter 10 Important Questions can support your chapter revision and help you identify concepts that need more practice.