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:

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