Looking Inside Cells Flashcards
0
Q
cell membrane
A
A thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell.
1
Q
cell wall
A
A rigid supporting layer that surrounds the cells of plants and some other organisms.
2
Q
nucleus
A
In cells, a large oval organelle that contains the cell’s genetic material in the form of DNA and controls many of the cell’s activities. 2. The central core of an atom which contains protons and neutrons. 3. The solid inner core of a comet.
3
Q
organelle
A
A tiny cell structure that carries out a specific function within the cell.
