B1.1 Cells Flashcards
1
Q
What is a cell?
A
Cells are the basic unit of life. Unicellular cells only have one cell. Multicellular cells have multiple.
2
Q
What is the cell membrane?
A
Controls the movement of substances in and out of the cell.
3
Q
What is the cytoplasm?
A
Jelly-like substance where chemical reactions take place.
4
Q
What is the nucleus?
A
Carries genetic information and controls the cell.
5
Q
What is the mitochondria?
A
Where respiration takes place.
6
Q
What is the cell wall?
A
Made of cellulose, provides support to the cell.
7
Q
What is the vacuole?
A
Contains cell sap.
8
Q
What is diffusion?
A
The movement of particles from an area of high concentration to an area of low concentration. Substances diffuse into and out of cells.
