⭐ Verified NECTA Format 📚 Form 4 CSEE (Certificate of Secondary Education Examination) ✨ AI Instant Feedback Ready

NECTA CSEE Biology 2025 Questions & Marking Scheme Solutions

Practice official NECTA past examination questions for Biology. Below are the first 3 verified questions with detailed marking scheme answers, examiner tips, and model responses. Students can test themselves and get their answers graded with step-by-step guidance.

Share with Classmates

Other Years: 2025 2024 2023 2022 2021

1-3 Official Exam Questions & Answers

Free Instant Preview

Question 1(i) Section A

1 Mark

(i) Which respiratory surface is responsible for gaseous exchange in the tadpole?

A Book lung

B Skin

C Gills

D Lungs

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

Tadpoles are aquatic larval stages of amphibians and use external/internal gills for gaseous exchange in water before metamorphosing into adult frogs.

Mark Allocation Criteria

Option C is the correct answer.

Question 1(ii) Section A

1 Mark

(ii) Which procedure in a scientific investigation involves a series of activities which are done to discover relationships or facts that may lead to the acceptance or rejection of a hypothesis?

A Data interpretation

B Problem identification

C Data recording

D Experimentation

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

Experimentation is the practical step in the scientific method designed to test the hypothesis under controlled conditions to discover facts and accept or reject the hypothesis.

Mark Allocation Criteria

Option D is the correct answer.

Question 1(iii) Section A

1 Mark

(iii) A person suffering from meningitis shows the following pair of symptoms:

A Stiff neck and delirium

B Weight loss and stiff neck

C Diarrhoea and seizures

D Prolonged cough and fever

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

Meningitis causes acute inflammation of the meninges surrounding the brain and spinal cord, typically presenting with high fever, stiff neck (nuchal rigidity), and delirium or confusion.

Mark Allocation Criteria

Option A is the correct answer.

Question 4 Preview ✨ Zana Learn AI Examiner Active

(iv) Why is the cell wall important to a plant cell?

[Answer input and detailed step-by-step AI marking scheme locked]

Answer Question 4 & Get Graded by AI Instantly

Don't just read answers—master them! Type or write your answer to Question 4 and let Zana Learn's AI examiner grade your response against actual NECTA marking schemes with instant corrections.

Answer Question 4 Now Get Free Android App

⚡ Instant access • No credit card required • 100% NECTA syllabus aligned

NECTA CSEE Biology 2025 Questions & Marking Scheme Solutions

1-3 Official Exam Questions & Answers

Answer Question 4 & Get Graded by AI Instantly

More CSEE Past Papers with Solutions