Science 14 (Alberta) Unit C Review

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

• All living organisms are composed of one or more cells.

• Cells can spontaneously generate from non-living matter.

• The cell is not responsible for structure and function in organisms.

• Cells do not arise from pre-existing cells.

What is the basic unit of life according to the cell theory?

• Atom

• Molecule

• Cell

• Tissue

How do cells arise according to the cell theory?

• Through spontaneous generation

• From pre-existing cells through cell division

• By assembling from atoms

• By forming from non-living materials

What is the primary purpose of a microscope?

• To visualize large objects

• To visualize the tiny world of cells and microorganisms

• To magnify sound

• To measure temperature

How do you calculate the total magnification of a compound microscope?

• Add the magnification of the eyepiece and the objective lens

• Subtract the magnification of the eyepiece from the objective lens

• Multiply the magnification of the eyepiece by the magnification of the objective lens

• Divide the magnification of the eyepiece by the magnification of the objective lens

If the eyepiece is 10x and the objective lens is 40x, what is the total magnification?

• 50x

• 400x

• 100x

• 140x

What is the function of the coarse adjustment screw on a microscope?

• To provide a source of light

• To hold the slide in place

• To bring the object into initial focus

• To magnify the object

Which part of the microscope contains lenses to magnify objects?

• Stage

• Objective

• Frame

• Light source

What is the purpose of the diaphragm and condenser in a microscope?

• To hold the slide in place

• To control the amount of light passing through the slide

• To rotate the objectives

• To provide stability to the microscope

Which of the following is a characteristic of plant cells?

• Lack of chloroplasts

• Presence of a rigid cell wall

• Numerous small vacuoles

• Absence of mitochondria