Bio 218 Chap 7 Microscope and Cell Biology Quiz

What is the correct way to carry a microscope?

• By holding the eyepiece and objectives

• By putting one arm under the base and another arm around the arm

• By holding the illuminator and diaphragm

• By gripping the coarse adjustment knob and fine adjustment knob

What is the basic unit of all forms of life?

• Atom

• Molecule

• Cell

• Tissue

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is the function of the cell membrane?

• It provides energy to the cell

• It regulates what enters and leaves the cell

• It stores genetic information

• It synthesizes proteins

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NGSS.MS-LS1-2

Which of the following statements is part of the cell theory?

• Cells can spontaneously generate

• All living things are made of cells

• Cells are not the basic unit of structure

• Cells do not reproduce

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NGSS.MS-LS1-1

What is the purpose of the coarse adjustment knob on a microscope?

• To adjust the light intensity

• To focus on an object for the first time using the low power objective

• To change the magnification of the eyepiece

• To fine-tune the focus with high power objectives

What does the diaphragm of a microscope do?

• It magnifies the image

• It regulates the amount of light used to focus on an object

• It holds the slide in place

• It adjusts the focus

Which of the following is a characteristic of eukaryotes?

• They lack a nucleus

• Their cells contain a nucleus

• They are always unicellular

• They do not have cell membranes

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NGSS.MS-LS4-2

What is the magnification of the eyepiece or ocular lens on a microscope?

• 5X

• 10X

• 20X

• 50X

When should the fine adjustment knob be used on a microscope?

• With the low power objective

• With the medium and high power objective lenses

• To change the light source

• To adjust the diaphragm

What is the role of the illuminator in a microscope?

• It magnifies the image

• It is the light source to reflect light up toward the eyepiece

• It holds the objectives

• It adjusts the focus