Cell Theory and Living Things
According to Cell Theory, all living things are composed of one or more of these.
What are cells?
Known as the “powerhouse of the cell,” this organelle produces ATP.
What are the mitochondria?
This jelly-like material fills the cell and surrounds its organelles.
What is cytoplasm?
This rigid structure surrounds the outside of a plant cell and provides support and protection.
What is the cell wall?
This is the most common example of a prokaryote.
What are bacteria?
According to Cell Theory, this is the functional unit of life.
What is the cell?
This organelle is the control centre of the cell and contains its DNA.
What is the nucleus?
This thin, flexible layer controls what enters and leaves the cell.
What is the cell membrane?
This organelle contains chlorophyll and carries out photosynthesis.
What is a chloroplast?
Unlike eukaryotic cells, prokaryotic cells do not have this structure containing their DNA.
What is a nucleus?
Cell Theory states that all new cells come from these.
What are pre-existing cells?
These small structures are responsible for making proteins.
What are ribosomes?
This organelle contains enzymes that break down waste and old or damaged cell parts.
What is a lysosome?
This large, fluid-filled sac stores water, nutrients, and waste in a plant cell.
What is the large central vacuole?
Instead of being enclosed in a nucleus, most of a prokaryote's DNA is found in this region.
What is the nucleoid?
An organism made of only one cell is described using this term.
What is unicellular?
These small sacs store water, nutrients, and waste inside an animal cell.
What are vacuoles?
This part of the ER has ribosomes attached and helps process and transport proteins.
What is the rough ER?
Cell wall, chloroplasts, and this large storage structure are the three major features that distinguish plant cells.
What is the large central vacuole?
Plasma membrane, cytoplasm, DNA, and this protein-making structure are found in both prokaryotic and eukaryotic cells.
What are ribosomes?
An organism made of many cells, which can have different jobs, is described using this term.
What is multicellular?
Usually found as a pair near the nucleus, these structures help organize chromosomes during cell division.
What are centrioles?
This organelle modifies, sorts, packages, and ships proteins.
What is the Golgi apparatus?
When filled with water, the central vacuole pushes against the cell wall and creates this pressure, helping the plant stay firm and upright.
What is turgor pressure?
Prokaryotic cells reproduce through this process, in which one cell divides into two.
What is binary fission?