🔵2.59: EXAM REVIEW: CELL THEORY & MICROSCOPE: 5D 15W S1 24

Front

What is the cell theory?

Back

The cell theory states that: 1) All living organisms are made of one or more cells, 2) Cells are the basic unit of life, and 3) All cells arise from pre-existing cells.

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What is a unicellular organism?

Back

A unicellular organism consists of a single cell that performs all necessary functions for life.

Front

What is a multicellular organism?

Back

A multicellular organism is made up of multiple cells that work together to perform various functions.

Front

What is the function of the stage on a microscope?

Back

The stage is the platform where the slide is placed for observation under the microscope.

Front

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

Back

The fine adjustment knob is used to make small adjustments to the focus of the microscope, allowing for clearer images.

Front

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

Back

The coarse adjustment knob is used to make large adjustments to the focus of the microscope.

Front

What are the two main types of microscopes?

Back

The two main types of microscopes are light microscopes and electron microscopes.

Front

Why is a light microscope sometimes called a compound microscope?

Back

A light microscope is called a compound microscope because it uses two sets of lenses to magnify the image.

Front

What is the role of the nosepiece on a microscope?

Back

The nosepiece holds the objective lenses and allows the user to switch between different magnifications.

Front

What is an example of a multicellular organism?

Back

An example of a multicellular organism is a human, which is made up of trillions of cells.