Biology · 2000 · November · Paper 2 · SL · Question paper
BiologyQuestion paper2000SLNovember
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This question paper is listed under Biology in the 2000 examination archive. Its catalogue level is SL. The catalogue session is November. 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 2
Wednesday 15 November 2000 (afternoon)
1 hour
N00/410/S(2)
INTERNATIONAL BACCALAUREATE
BACCALAURÉAT INTERNATIONAL
BACHILLERATO INTERNACIONAL
880-190 12 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.
! Section A: Answer all of Section A in the spaces provided.
! Section B: Answer one question from Section B. You may use the lined pages at the end of
this paper or 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 front 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 number of the Section B question answered in the
box below.
Number
Name
TOTAL
/40
TOTAL
/40
TOTAL
/40
NUMBER OF CONTINUATION
BOOKLETS USED .........
/20/20/20SECTION B
QUESTION .........
/20/20/20ALLSECTION A
IBCATEAM LEADEREXAMINERQUESTIONS ANSWERED
SECTION A
Candidates must answer all questions in the spaces provided.
1. Two identical groups of cells were grown in culture and were treated with a growth factor, either
GF1 or GF2. Scientists measured the amounts of thymine absorbed into the cells. The results are
shown in the graph.
Thymine
absorption /
arbitrary units
0
10 20 30 40 50 60
4
3
2
1
GF2
GF1
Concentration of growth factor / ng cm− 3
[3](a) Using only the data in the graph, compare the effects of the two growth factors.
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[1]
(b) In this experiment the amount of thymine absorption was used as a measure of the rate of
DNA replication by the cell.
Suggest a reason why thymine was chosen in this experiment.
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File information
Subject
Biology
Document type
Question paper
Year
2000
Session
November
Level
SL
Paper
2
Examination zone
Not labelled in the archive
Language
Not labelled in the archive
File size
107 KB
Pages
12
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