Required practical - microscopes (video)

What is the function of the stage in an optical microscope?

• To view the cells

• To magnify the cells

• To reflect light up through the slide

• To hold the microscope slide in place

What is the function of the objective lenses in an optical microscope?

• To reflect light up through the slide

• To magnify the cells

• To view the cells

• To hold the microscope slide in place

What is the magnification of the eyepiece lens in an optical microscope?

• 2 times

• 5 times

• 20 times

• 10 times

What is the function of the fine focusing dial in an optical microscope?

• To magnify the cells

• To adjust the distance between the objective lens and the slide

• To hold the microscope slide in place

• To reflect light up through the slide

What is the total magnification when using the eyepiece lens with a magnification of 10 times and the low-power objective lens with a magnification of 4 times?

• 50 times

• 40 times

• 30 times

• 20 times

What should be done to bring the cells into focus when using a higher power objective lens?

• Adjust the stage

• Use the fine focusing dial

• Change the eyepiece lens

• Increase the light intensity

What can be seen when looking at animal cells under an optical microscope?

• Mitochondria, cytoplasm, and cell membrane

• Nucleus, cytoplasm, and cell membrane

• Cell wall, cytoplasm, and nucleus

• Vacuole, chloroplasts, and cell wall

What can be seen when looking at plant cells under an optical microscope?

• Vacuole, chloroplasts, and cell wall

• Nucleus, cytoplasm, and cell membrane

• Mitochondria, cytoplasm, and cell membrane

• Cell wall, cytoplasm, and nucleus

What should be included in a drawing of the cells viewed under an optical microscope?

• Light intensity and type of cells

• Magnification scale and type of cells

• Type of cells and light intensity

• Stage adjustment and magnification scale

Where can additional questions on this required practical be found?

• In the textbook

• In the teacher's notes

• In the exam paper

• In the vision workbook