Cells and Microscope Practical Quiz

What is the basic structural unit of all living organisms?

• cell

• organ

• molecule

• atom

Which organelle is responsible for protein synthesis in a cell?

• nucleus

• ribosome

• mitochondria

• endoplasmic reticulum

What is the function of the mitochondria in a cell?

• Stores genetic information.

• Regulates cell division.

• Synthesizes proteins.

• Produces energy (ATP)

Name the part of the microscope that controls the amount of light passing through the specimen.

• stage

• eyepiece

• diaphragm

• lens

What is the function of the objective lens in a microscope?

• Illuminate the specimen.

• Hold the specimen in place.

• Magnify the specimen

• Adjust the focus of the microscope.

What is the purpose of staining a specimen before observing it under a microscope?

• To make the specimen more colorful.

• To make the specimen larger.

• To make the specimen easier to handle.

• To enhance contrast and visibility

Which microscope technique is used to observe the internal structure of a cell?

• electron microscope

• confocal microscope

• scanning electron microscope

• light microscope

What is the function of the condenser in a microscope?

• To focus and direct light onto the specimen.

• To hold the specimen in place.

• To adjust the brightness of the light.

• To magnify the image of the specimen.

What is the function of the nucleus in a cell?

• The function of the nucleus in a cell is to produce energy.

• The function of the nucleus in a cell is to transport nutrients.

• The function of the nucleus in a cell is to regulate cell division.

• The function of the nucleus in a cell is to control gene expression and store DNA.

Name the part of the microscope that allows you to adjust the focus of the image.

• zoom lever

• magnification dial

• aperture ring

• focus knob