Biology 9700 Practical Notes |top| – Top & Limited

Measure distances once the solvent front nears the top of the paper strip. Calculate the Retention Factor ( Rfcap R sub f

1timethe fraction with numerator 1 and denominator time end-fraction

Use a sharp HB pencil to draw clear, continuous, single lines. Do not cross lines or leave gaps. biology 9700 practical notes

Low-power drawings show tissue distribution, not individual cells.

Use a sharp HB pencil. Draw clear, single, continuous lines. Measure distances once the solvent front nears the

Understanding variables is fundamental to experimental design.

Distinguish between (calibration) and random errors (human judgment). 4. Key Tips for 9700 Practical Exam Day Low-power drawings show tissue distribution

Use a sharp pencil to draw small, neat crosses ( ) or ringed dots ( ⊙circled dot

: Use a ruler for label lines; lines must touch the feature being labeled and should not have arrowheads. 4. Data Presentation and Analysis

Align the zero lines of both the stage micrometer and the eyepiece graticule.