IB Biology SL Exam with correct
answers
Standard Deviation - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above
and below the mean → high standard deviation means that they're widely spread, also used to decide
whether the difference between two means is likely to be statistically significant
Error Bars - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above and
below the mean → high standard deviation means that they're widely spread, also used to decide
whether the difference between two means is likely to be statistically significant
T-Test - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above and below
the mean → high standard deviation means that they're widely spread, also used to decide whether
the difference between two means is likely to be statistically significant
Functions of Life - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above
and below the mean → high standard deviation means that they're widely spread, also used to decide
whether the difference between two means is likely to be statistically significant
Cell Theory - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above and
below the mean → high standard deviation means that they're widely spread, also used to decide
whether the difference between two means is likely to be statistically significant
Hyphae - .......🔷ANSWERS🔶......✔✔ thread like structures of which most fungi consist
Emergent properties - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread
above and below the mean → high standard deviation means that they're widely spread, also used to
decide whether the difference between two means is likely to be statistically significant
Stem Cells - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread above and
below the mean → high standard deviation means that they're widely spread, also used to decide
whether the difference between two means is likely to be statistically significant
, Collection of Cord Blood - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread
above and below the mean → high standard deviation means that they're widely spread, also used to
decide whether the difference between two means is likely to be statistically significant
Limitations to Cell Size - .......🔷ANSWERS🔶......✔✔ used to assess how far the values are spread
above and below the mean → high standard deviation means that they're widely spread, also used to
decide whether the difference between two means is likely to be statistically significant
Size of Eukaryotes - .......🔷ANSWERS🔶......✔✔ 100-10µm
Size of Organelles/Bacteria - .......🔷ANSWERS🔶......✔✔ 10-1µm
Size of Viruses - .......🔷ANSWERS🔶......✔✔ 100nm
Thickness of Cell Membranes - .......🔷ANSWERS🔶......✔✔ 10nm
Size of Molecules - .......🔷ANSWERS🔶......✔✔ 1nm
Calculating Magnification - .......🔷ANSWERS🔶......✔✔ (size of image/size of specimen)
Cell Wall - .......🔷ANSWERS🔶......✔✔ forms a protective outer layer that prevents damage from
outside and also bursting if internal pressure is high
Plasma Membrane - .......🔷ANSWERS🔶......✔✔ controls entry and exit of substances, pumping
some of them in by active transport
Hypotonic Solution - .......🔷ANSWERS🔶......✔✔ has a lower concentration of solutes outside the
cell
Hypertonic Solution - .......🔷ANSWERS🔶......✔✔ has a higher concentration of solutes outside the
cell
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