Cell Theory
According to the cell theory, where do new cells come from?
Cells that already exist
What word describes a cell with NO nucleus?
Prokaryotic
What is the stiff outer layer found in plant cells but not animal cells?
Cell wall
Which green organelle captures sunlight to make sugar?
Chloroplast
A cell has a nucleus, a cell wall, and chloroplasts. What is it?
Plant cell
What is the basic unit of structure and function in living things?
The cell
What word describes a cell that HAS a nucleus?
Eukaryotic
Which two structures are found in plant cells but NOT animal cells?
Cell wall and chloroplasts
Which cell part acts like a security guard, letting some things in and keeping others out?
Cell membrane
A cell has a cell membrane but NO nucleus. What is it?
Prokaryotic Cell
A scientist says every living thing is built from cells. Which idea is this?
The cell theory
Name a prokaryotic organism.
Bacteria
A cell has a nucleus and mitochondria but no cell wall or chloroplasts. What is it?
Animal cell
Which organelle stores DNA in a eukaryotic cell and acts like the principal's office giving directions?
Nucleus
Which organelles are found in BOTH plant and animal cells?
Nucleus, mitochondria, vacuoles, cell membrane, ER, lysosomes.
True or false: the cell theory says all cells have a cell wall.
False
Where is the DNA found in a prokaryotic cell?
Floating in the cytoplasm
Why can a tall plant stand upright without bones?
Its cells have strong cell walls
Which organelle breaks down food to release energy the cell can use?
Mitochondria
Which of these is made of eukaryotic cells: a dog, E. coli, or strep bacteria?
A dog
Which two structures do ALL cells share, including bacteria?
Cell membrane and cytoplasm
Which type of cell is usually smaller: prokaryotic or eukaryotic?
Prokaryotic
Why don't animal cells have chloroplasts?
Animals get food by eating, not photosynthesis
Plant cells have chloroplasts. Do they also have mitochondria?
Yes, to release energy from the food they make
A muscle cell needs lots of energy. Which organelle would it have many of?
Mitochondria