Biology Higher Level Paper 1
M09/4/BIOLO/HPM/ENG/TZ1/XX+
22096007
Biology HigHer level PaPer 1 Wednesday 6 May 2009 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on
the answer sheet provided.
22096007
2209-6007
18 pages © International Baccalaureate Organization 2009
– 2 – 1. What does the following scatter graph show? 16 14 12 10 Variable Y 8 6 4 2 0 0 2 4
M09/4/BIOLO/HPM/ENG/TZ1/XX+
6 8 10 12 14 16 Variable X
A. B. C. D.
No correlation between these variables Strong positive correlation between these variables Strong negative correlation between these variables Weak negative correlation between these variables
2.
What conditions must be met for the t-test to be applied? A. B. C. D. I. II. Population sampled must have a normal distribution Variable measured is continuous
III. Sample size must be >30 I only II and III only I and II only I, II and III
2209-6007
– 3 – 3.
M09/4/BIOLO/HPM/ENG/TZ1/XX+
How does the surface area to volume ratio change with an increase in cell size? A. Surface area / volume B. Surface area / volume
C. Surface area / volume
Cell size D.
Cell size
Surface area / volume
Cell size
Cell size
4.
How do prokaryotic cells divide? A. B. C. D. By mitosis By meiosis By budding By binary fission
5.
What can the extracellular matrix of cells be made of ? A. B. C. D. I. II. Polysaccharide Glycoprotein
III. Phospholipid I only I and II only II and III only I, II and III Turn over
2209-6007
– 4 – 6.
M09/4/BIOLO/HPM/ENG/TZ1/XX+
During which phase of the cell cycle do chromosomes duplicate? A. B. C. D. G1 S G2 Mitosis
7.
Which diagram represents the polarity of
22096007
Biology HigHer level PaPer 1 Wednesday 6 May 2009 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES
• Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question, choose the answer you consider to be the best and indicate your choice on
the answer sheet provided.
22096007
2209-6007
18 pages © International Baccalaureate Organization 2009
– 2 – 1. What does the following scatter graph show? 16 14 12 10 Variable Y 8 6 4 2 0 0 2 4
M09/4/BIOLO/HPM/ENG/TZ1/XX+
6 8 10 12 14 16 Variable X
A. B. C. D.
No correlation between these variables Strong positive correlation between these variables Strong negative correlation between these variables Weak negative correlation between these variables
2.
What conditions must be met for the t-test to be applied? A. B. C. D. I. II. Population sampled must have a normal distribution Variable measured is continuous
III. Sample size must be >30 I only II and III only I and II only I, II and III
2209-6007
– 3 – 3.
M09/4/BIOLO/HPM/ENG/TZ1/XX+
How does the surface area to volume ratio change with an increase in cell size? A. Surface area / volume B. Surface area / volume
C. Surface area / volume
Cell size D.
Cell size
Surface area / volume
Cell size
Cell size
4.
How do prokaryotic cells divide? A. B. C. D. By mitosis By meiosis By budding By binary fission
5.
What can the extracellular matrix of cells be made of ? A. B. C. D. I. II. Polysaccharide Glycoprotein
III. Phospholipid I only I and II only II and III only I, II and III Turn over
2209-6007
– 4 – 6.
M09/4/BIOLO/HPM/ENG/TZ1/XX+
During which phase of the cell cycle do chromosomes duplicate? A. B. C. D. G1 S G2 Mitosis
7.
Which diagram represents the polarity of