NAME………………………………………………………	INDEX NO………………………. …………...…
SCHOOL……………………………………………...…….	CANDIDATE’S SIGNATURE………………….
DATE………………………………………..

231/3
BIOLOGY 
PAPER 3
(PRACTICAL)
MARCH/APRIL 2015 
TIME: 1¼  HOURS 

KABONDO DIVISION JOINT EVALUATION TEST 
Kenya Certificate of Secondary Education (K. C.S.E.) 

(PRACTICAL)
MARCH/APRIL 2015 
TIME: 1¼  HOURS 

INSTRUCTIONS TO CANDIDATES 
• 	Write your name and index number in the spaces provided. 
• 	Sign and write the date of examination in the spaces provided. 
• 	Answer all the questions in the spaces provided in the question paper. 
• 	You are not allowed to start working with the apparatus for the first 15 minutes of the 1 3/4 hours allowed 
for this paper. This time is to enable you to read the question paper and make sure you have all the 
 and apparatus you need. 
•	 All working must be clearly shown where necessary. 

FOR EXAMINERS USE ONLY

Question	Maximum Score	Candidate’s Score	
1 	14		
2	15		
3	11		
TOTAL	40		

This paper consists of 6 printed pages .Candidates should check the questions  to ensure that All the pages are printed as indicated and no  questions are missing.

1.	You are provided with solution labeled K 
(a)	 Using the reagents provided test for the food substances found in solution K. Record the 
food you have tested for, procedure, observation and conclusion in the table below 
(12 marks). 

Food substance 	Procedure 	Observation 	Conclusion 	

				

				

				

				

(b) 	(i). 	Name an enzyme that may be required to digest the food substance found in 
solution K in a human being. 							(lmk) 
………………………………………………………………………………………………………………………………………………………………………………
(ii) 	State the name of the part of alimentary canal in which the enzyme named in (b)(i) 
above is found 								(lmk) 
………………………………………………………………………………………………………………………………………………………………………………
2. 	The photographs below show a variety of animals collected by a group of students during a field study. 

(a) 	Using the observable characteristics only draw up a dichotomous key for the above 
animals 										(l3mks) 
The key should begin with: 

1	(a) Body bilaterally symmetrical go to 2 ………….…………………………go to 2
            (b) Body ……………………………………………………………………………..
……………………………………………………………………………………….…………………………………………………………………………………………………….………………………………………………………………………………………….…………………………………………………………………………………………………….…

……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….………………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….………………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…
……………………………………………………………………………………….…………………………………………………………………………………………………….…

(b) 	(i) 	Name the phylum to which the housefly and the spider belong 		(lmk) 
……………………………………………………………………………………….…………………………………………………………………………………………………….…
(c) 	Give a reason for your answer in b(i) above 						(lmk) 
……………………………………………………………………………………….…………………………………………………………………………………………………….…

3. 	(a) 	(i) 	On diagram P and Q label the parts A,B,C and E 				(4mks) 

ii) 	Name the divisions of P and Q 						(2mks) 
                        P …………………………………………………………………………………
                       Q …………………………………………………………………………………
b) 	From the diagram name the organ of reproduction in 				(2mks) 
            P…………………………………………………………………………………………..
            Q …………………………………………………………………………........................

	(c)	On the diagram P show the part  representing gametophyte and sporophyte.	(2mks)

	(d)	Name the gametophyte of specimen Q						(1mk)
……………………………………………………………………………………….…………………………………………………………………………………………………….…