Ch 2 Cells

Unicellular means made of __________________ single cell.

• many

• one

• few

• none

Multicellular means made of __________________ cells.

• many

• one

• few

• none

Cell Theory 1-All living things are made up of __________________________________.

• only 1 cell.

• 2 cells.

• 1 or more cells.

• 3 or more cells.

Cell Theory 2-All cells come from _______cells.

• humans

• existing

• new

• plants

Cell Theory 3-__________ are the basic building blocks of all living things.

• Humans

• Bacteria

• Cells

• Plants

List the levels of organization of living things from smallest to largest. __________________ > ________________ > ____________________ > ________________

• Cell > Tissue > Organ > Organ System

• Organism > Organ System > Organ > Tissue

• Tissue > Cell > Organ System > Organism

• Organ > Cell > Tissue > Organism

True or False: Eukaryotic cells have a nucleus and prokaryotic cells do not have a nucleus.

• true

• false

Prokaryotic cells are ______________ celled organisms like ______________________.

• single, bacteria

• multi, plants

• single, animals

• multi, fungi

True or False: Passive Transport uses energy and active transport does not use energy.

• True

• False

Molecules move from areas that are __________________ to areas that are __________________ through passive transport during __________________.

• high concentration to low concentration through diffusion

• low concentration to high concentration through diffusion

• high concentration to low concentration through osmosis

• low concentration to high concentration through osmosis