Microscopes

Which of these do you NOT need to do before looking at a slide under a microscope?

• Turn on the microscope

• Make sure it's set to the lowest power lenses

• Set the stage to it's lowest position

• Make sure it's set to the highest power lenses

If your teacher asks you to move a microscope to table, how do you carry it?

• by the body tube and the eyepiece
• with one hand
• one hand on the arm and the other under the base
• with one hand on the base and the other on the eyepiece.

A microscope is an instrument that.

• makes faraway objects look closer.
• makes small objects appear larger.
• decreases the size of small objects.
• increases the size of small objects.

A thin flat piece of glass used to hold objects for examination is called a ___

• sheet

• slide

• cover slip

• objective

These are used to hold the slide in place:

• rotating nosepiece

• objective lenses

• stage clips

• adjustment knobs

When you focus on a new specimen, always begin with

• low power and coarse adjustment.
• low power and fine adjustment
• high power and coarse adjustment
• high power and fine adjustment

When is it okay to go to a higher magnification and use the fine focus?

• First thing when you get the slide.

• After you have located the cell using lower magnification and coarse focus.

• When you are done looking at the slide.

Which of the following statements is not part of the cell theory?

• Cells are the basic unit of structure and function in all living things.
• All cells are produced from other cells.
• Only animal cells are composed of cells.
• All living things are composed of cells.

Tags

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The ___ is the basic unit of sturucture and function of organisms

• atom
• cell
• matter
• all other answers are correct

Tags

NGSS.MS-LS1-1

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 Prokaryotic cells are different to eukaryotic cells because.....

• They do not have a cell membrane and they are much smaller than plant and animal cells. 

• They do not have a nucleus and they are much bigger than animal and plant cells.

• They have no proper nucleus and they are much smaller that plant and animal cells.

• They are much bigger than plant and animal cells.

Tags

NGSS.MS-LS1-1

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