Cells Test Review Practice with these slides until you know them all!
What are some functions cells carry out?
Cells can: Get rid of body wastes Release energy from food Make new cells for growth and food Carry on photosynthesis (plant cells) Divide to make more cells
What is the gel-like substance inside a cell called?
Answer: Cytoplasm This is the thick jelly inside a cell that keeps organelles in place.
What is a chloroplast?
A chloroplast: Is oval shaped Releases oxygen Is found in the highest concentration in the cells of plant leaves Uses energy from the sun to make food Contains chlorophyll
What is a cell wall?
A cell wall: Is usually rectangular Protects a plant cell Helps the cell maintain its shape Is a strong and rigid layer
Both plant and animal cells:
Contain cytoplasm, a cell membrane, mitochondria, and a nucleus
What does a cell membrane do?
A cell membrane: Encloses the contents of the cell Is selectively permeable or absorbent Controls what enters and exits the cell
What is the function of the mitochondria?
The mitochondria: Break down food to release energy for the cell and the organism
What instrument contributed to the development of cell theory?
The instrument scientists needed was: A microscope
What is the function of the nucleus?
The nucleus: Is the brain of the cell Carries genetic material Carries DNA instructions for the cell
What is the function of the lysosome?
The lysosome: Gets rid of wastes
Where is the dependent variable graphed?
The dependent variable is graphed on the Y axis
What organelle does a plant cell need in order to be a producer?
A plant cell produces glucose: In its chloroplasts
How do you calculate the mean?
Add all the data points together, divide by the number of data points
What do bacteria, fish, plants and clams all have in common?
They are all made up of cells
Autotrophic means:
Autotrophic means Makes its own food
Eukaryotic means:
Eukaryotic means Has membrane bound structures (nucleus)
The simplest organisms are:
The simplest organisms are Unicellular prokaryotic
What is the purpose of cilia and flagellum?
Cilia and flagellum help unicellular pond organisms to move
Do the cells of all living things all have the same structures?
No, cell structures relate to the cell functions. Animal cells don’t have cell walls or chloroplasts Multicellular eukaryotic organisms (like us) cells don’t have cilia
What organelle helps plants maintain homeostasis in a dry climate?
All living things:
All living things are Made up of cells
All cells come from:
All cells come from pre-existing cells