Test #3: Cells Flashcards
1
Q
At the beginning, all cells are what?
A
at the beginning, all cells are identical.
2
Q
What are stem cells?
A
cells that are undifferentiated; they have no specific function.
3
Q
True or false:
cells come in different sizes and shapes, depending on their function.
A
True
4
Q
What are the main three organelles of a cell?
A
Cell membrane
Cytoplasm
Nucleus
5
Q
Cell membrane: Description and Function:
A
Description:
A thin skin that separates the inside of the cell from the outside environment.
Function:
- Allows things to enter/leave the cell (semi-permeable)
- Protection/shape
6
Q
Cytoplasm: Description and Function:
A
Description:
It is a semi fluid material surrounding the organelles.
Function:
- Allows substances to move through the cell
- Shape
7
Q
Nucleus: Description and Function:
A
Description:
Circular organelle located in the middle of the cell.
Function:
- Control center
- Contains DNA
