Biology · 2005 · May · Paper 3 · SL · TZ1 · Question paper
BiologyQuestion paper2005SLMay
Full PDFs are free with an email account.
Resource overview
This question paper is listed under Biology in the 2005 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.
For revision, choose a manageable section and attempt it before consulting the matching markscheme. Keep a short error log separating knowledge gaps, method choices and unclear explanation. Compare the paper number, level and examination zone before pairing files. Older papers can be useful practice, but their topic coverage and format may differ from the course you are taking now.
The public preview contains file information and, where reliable text extraction is available, a limited opening excerpt. It is not a summary of unseen questions or a replacement for the original document. Create a free email account to read or download the complete file. No payment is required to unlock this archive resource.
This original usage overview is based on the archive metadata. It does not claim to summarise the complete file.
Opening excerpt
Opening text only, limited to at most 20% of pages, two page-equivalents and 2,200 characters. Clearly labelled personal identifiers have been removed. Text extraction may omit equations, tables or figures.
BIOLOGY
STANDARD LEVEL
PAPER 3
Thursday 12 May 2005 (morning)
1 hour
M05/4/BIOLO/SP3/ENG/TZ1/XX+
IB DIPLOMA PROGRAMME
PROGRAMME DU DIPLÔME DU BI
PROGRAMA DEL DIPLOMA DEL BI
c
22056012
2205-6012 26 pages
INSTRUCTIONS TO CANDIDATES
! Write your session number in the boxes above.
! Do not open this examination paper until instructed to do so.
! Answer all of the questions from two of the Options in the spaces provided. You may continue
your answers on answer sheets. Write your session number on each answer sheet, and attach
them to this examination paper using the tag provided.
! At the end of the examination, indicate the letters of the Options answered in the candidate box
on your cover sheet and indicate the number of answer sheets used in the appropriate box on
your cover sheet.
[Personal identifier removed]
Option A Diet and Human Nutrition
A1. Cancer of the colon is the fourth most common cancer throughout the world. A number of
epidemiological studies have shown that dietary starch and fibre can influence the incidence of
colon cancer. The results of two of these studi es are shown below. Each point on the graphs
represents the human population of one region.
Fibre intake and colon cancer
fibre intake /
1gd a y−
2019181716
11.0
12.5
11.5
12.0
13.0
13.5
Colon cancer mortality /
deaths per 100 000 population
Starch intake and colon cancer
Starch intake
1/ g day−
400
300
200
100
0
01 02 03 0
Incidence of colon cancer / %
[Source: adapted from Food, Nutrition and the Prevention of Cancer:
a Global Perspective, World Cancer Research Fund, A.I.C.R., (1997), page 380]
[1](a) Outline the relationship between fibre intake and colon cancer mortality.
.........................................................................
.........................................................................
[1]
(b) (i) Determine the predicted mortality due to colon cancer at a daily fibre intake of
.112.5g day−
.....................................................................
.....................................................................
[1]
(ii) Calculate how much more starch a person would have to consume per day to reduce
the cancer risk by 10 %.
File information
Subject
Biology
Document type
Question paper
Year
2005
Session
May
Level
SL
Paper
3
Examination zone
TZ1
Language
Not labelled in the archive
File size
247 KB
Pages
26
FREE FULL RESOURCE
Read the complete document.
Register or sign in with your email to unlock the full PDF. No payment, password or membership is needed.