Observing root hair cells using a light microscope: practical
I can use a light microscope to observe a plant root hair cell and produce a scientific line drawing of it.
Observing root hair cells using a light microscope: practical
I can use a light microscope to observe a plant root hair cell and produce a scientific line drawing of it.
Lesson details
Key learning points
- A light microscope can be used to observe plant root hair cells.
- The parts of a light microscope and their functions.
- The sequence of steps for setting up a light microscope to observe cells including changing the magnification and focus.
- Observations from a light microscope can be recorded in a labelled scientific line drawing.
- Total magnification = magnification of the eyepiece lens × magnification of the objective lens
Common misconception
Incorrectly calculating the total magnification by adding the magnification of the eyepiece lens to the magnification of the objective lens.
The correct way to calculate the total magnification (by multiplying the magnification of the eyepiece lens by the magnification of the objective lens) is practiced.
Keywords
Light microscope - an instrument that uses visible light and lenses to magnify a viewed specimen
Lens - a glass or plastic disc that refracts light to increase magnification
Focus - focus means to make an image sharper and clearer
Magnification - the number of times greater in size the viewed object is compared to its actual size
Root hair cell - a specialised plant cell found in the roots that absorb water and nutrients into the plant
Equipment
light microscope, pre-prepared slide of root hair cells, pencil, ruler
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
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