K1 is a slide of a stained transverse section through a plant stem. Fig. 2.3 is the same photomicrograph as that shown in Fig. 2.2. Fig. 2.3 Identify three observable differences, other than colour, between the stem section on K1 and the stem section in Fig. 2.3. Record these three observable differences in an appropriate table.

Biology

IGCSE&ALevel

CAIE

Exam No：9700_w24_qp_33. Year：2024 Question No：2(c)

Answer:

Knowledge points:

1.1.1 Candidates should be able to:make temporary preparations of cellular material suitable for viewing with a light microscope

1.1.2 Candidates should be able to:draw cells from microscope slides and photomicrographs

1.1.3 Candidates should be able to:calculate magnifications of images and actual sizes of specimens from drawings, photomicrographs and electron micrographs (scanning and transmission)

1.1.4 Candidates should be able to: use an eyepiece graticule and stage micrometer scale to make measurements and use the appropriate units, millimetre (mm), micrometre (µm) and nanometre (nm)

1.1.5 Candidates should be able to: define resolution and magnification and explain the differences between these terms, with reference to light microscopy and electron microscopy

Answer:

Knowledge points:

Solution:

Related Question