2014年11月IB生物SL真题下载-Paper1
1. What can be predicted from the histogram comparing the mass of McIntosh apples and the mass of Gravenstein apples?
A. More fertiliser had been used to grow the McIntosh apples.
B. The mass of the McIntosh apples has a smaller standard deviation than the Gravenstein apples.
C. The electronic balance used to obtain the data was only accurate to 5 grams.
D. The distribution of the two apple masses overlaps by 68 %.
2. What evidence supports the cell theory?
A. Living organisms are made up of cells.
B. Unicellular organisms carry out all the functions of life.
C. Multicellular organisms show emergent properties.
D. Cells can develop from inorganic molecules.
3. What is a difference between prokaryotic cells and eukaryotic cells?
A. Ribosomes are found only in prokaryotic cells.
B. Cell walls are found only in eukaryotic cells.
C. Mitochondria are found only in eukaryotic cells.
D. Flagella are found only in prokaryotic cells.
4. What causes cell differentiation in multicellular organisms?
A. Each cell having different genes.
B. The expression of certain genes but not others.
C. The recognition by antibodies of some cells but not others.
D. The cellular recognition of a specific function.
5. Which structure synthesizes proteins for use primarily within the cell?
6. What is the passive movement of particles, such as sodium ions from an area of higher concentration to an area of lower concentration through a protein carrier?
A. Diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport
7. What characteristic(s) of water allow(s) effective transport of nutrients around the body by blood?
I. Solvent properties
II. Thermal capacity
III. Transparency
A. I only
B. I and II only
C. II and III only
D. I, II and III
8. How can a change in pH stop an enzyme-catalysed reaction from occurring?
A. Collisions between enzyme and substrate are prevented.
B. The structure of the enzyme is altered.
C. There is too much product produced.
D. The active site is blocked by the substrate.
9. During which process is messenger RNA (mRNA) formed?
A. Translocation
B. Transcription
C. Translation
D. Transmission
10. What is the correct site of anaerobic respiration in yeast and one of its end products?
2014年11月IB生物SL真题余下省略！
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