Plant cells are stained and then viewed with a simple light microscope, using daylight as the only light source. Which cell structures are clearly visible at a magnification of $$$\times 400$$$ ?

Biology

IGCSE&ALevel

CAIE

Exam No：9700_s25_qp_14 Year：2025 Question No：1

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

Plant cells are stained and then viewed with a simple light microscope, using daylight as the only light source. Which cell structures are clearly visible at a magnification of $$\(\times 400\)$$ ?

Answer:

Knowledge points:

Solution:

Plant cells are stained and then viewed with a simple light microscope, using daylight as the only light source. Which cell structures are clearly visible at a magnification of $$\(\times 400\)$$ ?

Answer:

Knowledge points:

Solution:

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