Cell Basics
What are all living things made of?
Cells
I am the control center of the cell. What am I?
Nucleus
Which organelle uses sunlight to help a plant make food?
Chloroplast
What is the movement of particles from high concentration to low concentration called?
Diffusion
What is the name for any individual living thing?
An organism
What do we call an organism made of only one cell?
Unicellular
I control what enters and leaves the cell. What am I?
Cell membrane
What structure provides extra support and protection to a plant cell?
Cell Wall
What is the movement of WATER across a membrane called?
Osmosis
What is ONE thing that all living organisms have in common?
They are made of cells
What do we call an organism made of many cells?
Multicellular
I help release usable energy from food. What am I?
Mitochondria
Name TWO structures that plant cells have that animal cells do not.
Cell wall & chloroplasts
Which type of transport does NOT require the cell to use energy?
Passive Transport
A scientist looks at pond water under a microscope and sees an organism made of just one cell. Is it living? What evidence supports your answer?
Yes; it is made of a cell
A scientist observes a tiny organism and sees that the entire organism is one cell. What type of organism is it?
Unicellular
I make proteins for the cell. What am I?
Ribosome
A cell has a nucleus, mitochondria, cell membrane, and ribosomes, but NO chloroplasts or cell wall. What type of cell is it most likely?
Animal Cell
What type of transport requires the cell to use energy?
Active Transport
A mushroom looks very different from a plant or animal. What evidence could scientists collect to show that the mushroom is a living thing?
Observe that it is made of cells
Why is a microscope useful when gathering evidence that living things are made of cells?
It allows us to observe cells that are too small to see with our eyes.
I am a stiff outer layer that provides support and protection to a plant cell. What am I?
Cell Wall
A cell's chloroplasts stop working. What important ability would be affected?
Its ability to use sunlight to make food
Particles move from an area of LOW concentration to an area of HIGH concentration. Would the cell most likely need to use energy? Why?
Yes; moving low → high is active transport.
A scientist discovers something new and wants to determine whether it is a living organism. What evidence involving cells should the scientist look for?
Evidence that it is made of one or more cells