Difference between revisions of "GCSE Biology Required Practical: Using a Microscope"
| Line 1: | Line 1: | ||
==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| − | Use a [[microscope]] to make labelled [[diagram]]s of [[plant]] and [[animal]] [[Cell (Biology)|cells]] with a | + | Use a [[microscope]] to make labelled [[diagram]]s of [[plant]] and [[animal]] [[Cell (Biology)|cells]] with a magnification scale. |
===Method=== | ===Method=== | ||
| Line 10: | Line 10: | ||
#Place the [[slide]] onto the [[stage]] of the [[microscope]] and focus the image. | #Place the [[slide]] onto the [[stage]] of the [[microscope]] and focus the image. | ||
#Note the [[magnfication]] of the [[Eyepiece Lens|eyepiece lens]] and the [[Objective Lens|objective lens]]. | #Note the [[magnfication]] of the [[Eyepiece Lens|eyepiece lens]] and the [[Objective Lens|objective lens]]. | ||
| − | #Sketch a [[Cell (Biology)|cell]] including a | + | #Sketch a [[Cell (Biology)|cell]] including a magnification scale to indicate how much larger you drawing is than the actual [[Cell (Biology)|cell]]. |
====Observing Animal Cells==== | ====Observing Animal Cells==== | ||
#Place a [[sample]] of animal [[Cell (Biology)|cells]] on to a [[slide]]. | #Place a [[sample]] of animal [[Cell (Biology)|cells]] on to a [[slide]]. | ||
| Line 17: | Line 17: | ||
#Place the [[slide]] onto the [[stage]] of the [[microscope]] and focus the image. | #Place the [[slide]] onto the [[stage]] of the [[microscope]] and focus the image. | ||
#Note the [[magnfication]] of the [[Eyepiece Lens|eyepiece lens]] and the [[Objective Lens|objective lens]]. | #Note the [[magnfication]] of the [[Eyepiece Lens|eyepiece lens]] and the [[Objective Lens|objective lens]]. | ||
| − | #Sketch a [[Cell (Biology)|cell]] including a | + | #Sketch a [[Cell (Biology)|cell]] including a magnification scale to indicate how much larger you drawing is than the actual [[Cell (Biology)|cell]]. |
Revision as of 12:49, 8 April 2019
Contents
Key Stage 4
Meaning
Use a microscope to make labelled diagrams of plant and animal cells with a magnification scale.
Method
Observing Plant Cells
- Place a sample of onion cells on to a slide.
- Place a drop of 0.01M Iodine Solution onto the cells.
- Place a cover slip on the cells and use tissue paper to remove any excess iodine solution from the edges.
- Place the slide onto the stage of the microscope and focus the image.
- Note the magnfication of the eyepiece lens and the objective lens.
- Sketch a cell including a magnification scale to indicate how much larger you drawing is than the actual cell.
Observing Animal Cells
- Place a sample of animal cells on to a slide.
- Place a drop of Methylene Blue onto the cells.
- Place a cover slip on the cells and use tissue paper to remove any excess Methylene Blue from the edges.
- Place the slide onto the stage of the microscope and focus the image.
- Note the magnfication of the eyepiece lens and the objective lens.
- Sketch a cell including a magnification scale to indicate how much larger you drawing is than the actual cell.