biology revison Flashcards
1
Q
Interphase
A
2
Q
Why is mitosis needed?
A
Mitosis is needed to produce additional cells for growth and to repair damaged tissue. It can replace cells that have been lost or damaged.
3
Q
Diffusion
A
The passive movement of a substance from
an areas of high concentration to an area
of low concentration
4
Q
Osmosis
A
The movement of water molecules across a
partially permeable membrane from a less
concentrated solution to a more
concentrated solution.
5
Q
active transport
A
Movement of a substance from a lower
concentration to a higher concentration,
against the concentration gradient. Uses
energy.
