Biology Cell Theory

What does a eukaryotic cell have that a prokaryotic cell does not ?

• DNA

• Organelles

• Cell Wall

• Cell Membrane

What tool did scientists use to gather observations to form the cell theory ?

• Thermometer

• Microscope

• Graduated Cylinder

• Triple Beam Balance

What characteristic are shared by most cells ?

• Most cells have membrane-bound organelles and a nucleus.

• Most cells contain cytoplasm, are enclosed by a membrane, and have a nucleus.

• Most cells are microscopic, enclosed by a membrane, and contain cytoplasm.

• )Most cells can be seen by the unaided eye and are enclosed by a membrane .

In what ways are cells similar to atoms ?

• both are basic units or building blocks

• both are alive

• both have electron shells

• both can be viewed under a light microscope

Would a poison that kills human cells by blocking pores in the nuclear membrane also kill bacteria ?

• Yes, both human cells and bacteria have a nucleus.

• Yes, bacteria have a membrane on which the poison can act.

• No, bacteria do not have pores in their nuclear membranes.

• No, bacteria do not have a nucleus on which the poison can act.

What is Microbiology ?

• the study of all living organisms that are too small to be visible with the naked eye

• The medical and scientific study of cells.

• The study of living organisms

• another form of cytobiology

what is NOT one component of the cell theory ?

• All organisms are made of cells

• All existing cells are produced by other living cells

• The cell is the most basic unit of life

• All cells are microscopic

Hooke discovered

• animalcules

• cells

• breadboard

• microscope

Who used compound microscope to study plant tissue ?

• Hooke

• Leeuwenhoek

• Schleiden

• Schwann

• Virchow

Who was struck by similarities between plant cells and the animal cells ?

• Schwann

• Virchow

• Hooke

• Schlieden