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NECTA CSEE Biology 2024 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.

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1-3 Official Exam Questions & Answers

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Question 1(i) Section A

1 Mark

(i) Which part is the functional unit of the kidney?

A Pelvis

B Nephron

C Cortex

D Medulla

E Ureter

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

The nephron is the microscopic structural and functional filtration unit of the mammalian kidney, responsible for ultrafiltration, selective reabsorption, and urine production.

Mark Allocation Criteria

Option B is the correct answer.

Question 1(ii) Section A

1 Mark

Form Two students were required to measure 250 cm³ of water when doing food test experiment. Which apparatus did they use?

A Beaker

B Dropper

C Petri dish

D Watch glass

E Spatula

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

A graduated beaker has volume markings designed to hold and measure relatively large volumes of liquid (such as 250 cm³) during biological experiments.

Mark Allocation Criteria

Option A is the correct answer.

Question 1(iii) Section A

1 Mark

(iii) How can a patient diagnosed with kidney stones control the disorder?

A Eating very salty foods

B Eating enough fibre food

C Taking food rich in sodium

D Taking diet high in protein

E Drinking plenty of water

Official Marking Scheme & Model Answer

Model Answer / Key

Examiner's Explanation

Drinking plenty of water increases urine volume, dilutes concentrations of stone-forming salts (calcium oxalate, uric acid), and flushes out small mineral crystals before they aggregate.

Mark Allocation Criteria

Option E is the correct answer.

Question 4 Preview ✨ Zana Learn AI Examiner Active

Form Three students took a thermometer and measured the temperature of the following organisms: frog, duck, rat, lizard, and rabbit under cold and later under hot environment. Whic...

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NECTA CSEE Biology 2024 Questions & Marking Scheme Solutions

1-3 Official Exam Questions & Answers

Answer Question 4 & Get Graded by AI Instantly

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