Cell Theory Assessment

Which is NOT true of the cell theory?

• All living organisms are composed of cells.

• All cells come from preexisting living cells.

• All cells have a nucleus, which acts like the brain of the cell.

• The cell is the most basic part of a living organism.

Robert Hook was the first scientist to give the cell a name. Which statement is true?

• He looked at onion skin with his naked eyes to see cells.

• He invented the microscope.

• Under a microscope he observed box-like compartments of cork tree bark.

• He used the microscope to observe skin cells.

Which scientist is recognized for improving the microscope lens?

• Hooke

• Leeuwenhoek

• Schwann

• Virchow

The cell theory was NOT complete until Rudolph Virchow discovered that __________.

• Cells are alive.

• There are 2 types of cells: Prokaryotic and Eukaryotic.

• The cell is found in both plants and animals.

• All cells come preexisting living cells.

The two scientists responsible for discovering that both plant and animal tissue is made of cells are ______?

• Schwann and Schleiden

• Hooke and Schwann

• Virchow and Hooke

• Schwann and Leeuwenhoek

Which of the following is NOT a function of the cell?

• Sleeping

• Reproduction

• Protection/Defense

• Growth

Homeostasis in a cell is a way for a cell to stay _____.

• Balanced

• Growing

• Dividing

• Protected

A cell's metabolism is caused by _____.

• A growth spurt in the cell.

• The cell dividing.

• Chemical reactions inside the cell.

• The cell's defense system.

Cell theory is important to what area of science?

• Biology

• Chemistry

• Physics

• Geology

Where do cells come from?

• Dead cells

• Soil

• Outer space

• Other living existing cells