Cells

The smallest unit of life is the ________________________.

• Cell

• Homeostasis

• Organism

• Protein

Which of the following is NOT a necessary characteristic of a living thing?

• It is made up of cells

• It eats food to get energy.

• It grows and develops.

• It responds to stimuli.

Which of the following is a multicellular organism?

• Bacterium

• Amoeba

• Mouse

• Paramecium

Which statement is true?

• Cells come in different shapes, but are all about the same size- very, very small.

• Cells come in different shapes and sizes.

• Cells all have the same shape, but come in different sizes.

• Cells are all the same shape and size- small and rounded.

Animals are multicellular.

• True

• False

_________________ Cells have genetic material that is not surrounded by a lining.

• Prokaryotic

• Eukaryotic

The cell theory is the result of the hypothesis and observation of one person.

• True

• False

The cell theory states that all cells come from cells that already exist.

• True

• False

Which correctly describes a difference between prokaryotic and eukaryotic cells?

• Only prokaryotic cells have vacuoles.

• Eukaryotic cells are smaller than prokaryotic cells.

• Prokaryotic cells have many organelles, each with their own specialized functions.

• Only eukaryotic cells have the genetic material surrounded by a lining.