e-Practical Reinforcement

When focusing on a new specimen, always begin with

• 4x objective lens and coarse adjustment knob

• 10x objective lens and fine adjustment knob

• 40x objective lens and coarse adjustment knob

• 40x objective lens and fine adjustment knob

All of the following are safety rules while in laboratory EXCEPT

• Students wear lab coat properly

• Students wear covered shoes

• Tie up long hair

• Student wear sandals

What is the actual magnification of 40x objective lens?

• 4x

• 10x

• 100x

• 400x

All of the following is a proper clean-up procedure EXCEPT.

• Wash the slide properly after the experiment

• Arrange and place all the apparatus back into the basket

• Leave the slide on the stage

• Ensure the work station is always left neat and clean

Student takes more than one leaf from the main plant.

• True

• False

Which of the following is the last step once you have finished using the microscope?

• Replace the dust cover

• Remove the slide on the stage

• Neatly wrap the cord around the base

• Turn off the light switch

Students use a cover slip to cover the specimen on the slide.

• True

• False

Before observing the specimen, make sure the 10x objective lens is placed above the specimen.

• True

• False

You can have your long hair loose and hanging in your face during lab.

• True

• False

Which of the following footwear is most appropriate in the lab?

• sandals

• covered shoes

• slippers

• open-toed shoes