Biology · 2002 · May · Paper 3 · SL · Question paper
BiologyQuestion paper2002SLMay
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This question paper is listed under Biology in the 2002 examination archive. Its catalogue level is SL. The catalogue session is May. The information below helps you identify the document before opening the complete PDF. Subject, year and session labels come from the archive catalogue; the original cover remains the reference if a label differs. A file is not automatically suitable for your current syllabus simply because its subject name matches.
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BIOLOGY
STANDARD LEVEL
PAPER 3
Friday 10 May 2002 (morning)
1 hour 15 minutes
M02/410/S(3)
c
IB DIPLOMA PROGRAMME
PROGRAMME DU DIPLÔME DU BI
PROGRAMA DEL DIPLOMA DEL BI
222-145 16 pages
INSTRUCTIONS TO CANDIDATES
! Write your candidate name and number in the boxes above.
! Do not open this examination paper until instructed to do so.
! Answer all of the questions from three of the Options in the spaces provided. You may continue
your answers in a continuation answer booklet, and indicate the number of booklets used in the
box below. Write your name and candidate number on the fr ont cover of the continuation
answer booklets, and attach them to this question paper using the tag provided.
! At the end of the examination, indicate the letters of the Options answered in the boxes below.
Number
Name
TOTAL
/45
TOTAL
/45
TOTAL
/45
NUMBER OF CONTINUATION
BOOKLETS USED .........
/15/15/15
/15/15/15
/15/15/15
IBCATEAM LEADEREXAMINEROPTIONS ANSWERED
Option A Diet and human nutrition
A1. Researchers were investigating the factors that might affect life expectancy of humans or increase
longevity. The graph below shows the effect of limited energy on longevity of rats. Rats were
chosen based on their similar dietary requirements to humans. Control rats were fed a normal
balanced diet, with sufficient energy, while experimental animals were fed a similar diet but with a
total energy content 50 % less than the control.
% survival
(remaining
alive)
0 200 400 600 800 1000 1200 1400 1600
0
10
20
30
40
50
60
70
80
90
100
age / days
[Source: Brian J Merry, (1999) Biologist, 46 (3), pages 114-117]
[2](a) Identify the percentage of rats that remain alive in each group after 800 days.
Control: ..................................................................
Experimental: .............................................................
[2](b) Outline how the graph shows the effect of energy content on longevity.
.........................................................................
.........................................................................
.........................................................................
File information
Subject
Biology
Document type
Question paper
Year
2002
Session
May
Level
SL
Paper
3
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
945 KB
Pages
16
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