Exploring Microscopes and Cell Organelles

Which part of the microscope is used to focus the image by moving the stage up and down?

• Eyepiece

• Coarse focus knob

• Objective lens

• Light source

What is the function of the mitochondria in a cell?

• Controls cell activities

• Produces energy

• Stores water

• Makes proteins

Which organelle is responsible for photosynthesis in plant cells?

• Nucleus

• Chloroplast

• Ribosome

• Vacuole

What is the total magnification if you use a 10x eyepiece and a 40x objective lens?

• 4x

• 40x

• 400x

• 100x

Which structure controls what enters and leaves the cell?

• Cell wall

• Nucleus

• Cell membrane

• Cytoplasm

What is the main function of ribosomes?

• Store genetic information

• Make proteins

• Digest waste

• Produce energy

Which part of the microscope holds the objective lenses and can be rotated to change magnification?

• Stage

• Arm

• Revolving nosepiece

• Base

Which organelle is found only in plant cells and not in animal cells?

• Mitochondria

• Nucleus

• Chloroplast

• Ribosome

What is the jelly-like substance inside the cell where organelles are found?

• Cytoplasm

• Nucleus

• Cell wall

• Vacuole

Which part of the microscope do you look through to see the specimen?

• Objective lens

• Eyepiece

• Stage

• Diaphragm