MARKING SCHEME
SULIMO JET-2025
Kenya Certificate of Secondary Education
231/3
BIOLOGY
Paper 3
JULY 2025
TIME: 1hr45 minutes
INSTRUCTIONS TO CANDIDATES
Write your name, Admission number and name of your school in the spaces provided above
This paper consists of three questions
Answer all the questions in the spaces provided.
You are required to spend the first 15 minutes of the 13/4 Hours allowed for this paper reading through all the questions before commencing your work.
Candidates should check to ascertain that all pages are printed as indicated and that no questions are missing.
For Examiners Use Only
Question
Maximum score
Candidate’s score
1
14
2
14
3
12
Total Score
40
(I). You are provided with a specimen labelled Q (Citrus fruit).
a) Using a scapel cut a transverse section of the specimen Q and retain the other half-portion for part (II) below. Draw and label the exposed surface of the section (3marks)
Drawing with juicy sacs at least in a loculi 1mark;
Labels accept any 2 ;
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