Cells

tiny round organelles made of protein and other material

• cell membrane
• eukaryote
• prokaryote
• ribosomes

the fluid and almost all its contents inside a cell

• cell membrane
• cytoplasm
• nucleus
• ribosomes

a protective layer that covers a cell's surface and acts as a barrier between the inside of a cell and its environment

• cell membrane
• nucleus
• ribosomes
• eukaryote

an organism that consists of a single cell that does not have a nucleus or membrane bound organelles

• eukaryotic

• bacteria

• ribosomes

• cell membrane

an organism made up of cells that have a nucleus enclosed by a membrane as well as membrane bound organelles

• prokaryote

• bacteria

• cytoplasm

• multicellular

a membrane bound organelle in a eukaryotic cell that contains the cell's DNA

• cytoplasm
• ribosome
• membrane
• nucleus

The smallest structural and functional unit of living things is a(n) 

• atom
• organelle
• nucleus
• cell

Where do cells come from?

• organelles
• organ system
• blood
• other cells

The site of photosynthesis

• ribosome
• mitochondria
• chloroplast
• nucleus

When many organ systems work together it can form...

• organ
• cells
• organ system
• organism