cell theory

What is one way in which all living things on Earth are alike?

All living things are made of cells and come from other cells.

Cells with a nucleus are called

Eukaryotes

Which of the following scientists contributed to the cell theory?

Matthais Schleiden, Theodor Schwann, Rudolf Virchow

He discovered that all plants were made of cells, which contributed to the development of the cell theory

Matthias Schleiden

Which of the following statements is NOT part of the cell theory?

Only animal cells are composed of cells.

Cells without a nucleus are called

Prokaryotic

Who was the first person to see cells under the microscope and give them a name?

Robert Hooke

He advanced the cell theory with his conclusion that cells could only come from other cells:

Rudolph Virchow

Which of the following scientists concluded that all ANIMALS are made of cells?

Theodor Schwann

The basic unit of life is called a (n)

cell

The word cyto means:

cell

This structure serves as the outer boundary of the eukaryotic cell:

cell membrane

The invention of the microscope made it possible for people to discover and learn about

cells

Which of the following is NOT one of the main components of the cell theory?

cells must contain DNA

The first part of the Cell Theory states: "What happens in Cell Theory, stay in Cell Theory."

false

Unlike eukaryotes, prokaryotes do not have

membrane bound nucleus

Which technology was essential for the development of the cell theory?

microscopes

Both plant and animal cells have

mitochondria

Why are microscopes important when studying most cells?

most cells are very small

Organisms made up of many cells are called

multicellular

Tiny structures that carry out cell functions are collectively called:

organelles

A cell memebrane only allows certain things to pass through. This is called

semi-permeable

Rudolph Virchow's observations helped to disprove was commonly held belief of the time?

spontaneous generation

The third part of cell theory states: "All cells come from existing cells."

true

Organisms made up of only one cell are called

unicellular