Lesson 3 and Microscopes

Rotating this part of the microscope allows the objective lens to be changed.

• Body Tube

• Rotating Nosepiece

• Stage

• Diaphragm

Select True or False. The ocular lens (the eyepiece) has no magnification.

• True

• False

Label this part (refer to the part labeled '3' in the diagram of the microscope).

• Coarse Adjustment Knob

• Diaphragm

• Arm

• Stage Clips

• Base

The coarse adjustment knob moves which part closer to the objective lense?

• fine adjustment knob

• stage

• base

• diaphragm

Fill in the blank: ______ are microscopic infectious agents that can only replicate inside the living cells of an organism.

• Viruses

• Bacteria

• Fungi

• Protozoa

Fill in the blank: ______ are single-celled microorganisms that can exist either as independent organisms or as parasites.

• Bacteria

• Viruses

• Fungi

• Algae

Fill in the blank: ______ are a group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as mushrooms.

• Fungi

• Bacteria

• Viruses

• Algae

Fill in the blank: ______ are a diverse group of eukaryotic microorganisms, which are not animals, plants, or fungi.

• Protists

• Bacteria

• Viruses

• Mosses

All microorganisms are harmful.

• True

• False

If an organism is made of only 1 cell it is

• unicellular

• multicellular

• bivalve

• unicycle

Tags

NGSS.MS-LS1-1