Cell definitions

?
  • Created by: Jess
  • Created on: 16-04-13 19:46
Magnification
How many times bigger the image is when compared to the image.
1 of 16
Resolution
The minimum distance apart that two can be seen for them to be 2 seperate objects.
2 of 16
Gene expression
The genes that are switched on to make cells become differenciated
3 of 16
Stem cells
Cells that have the capacity to self-renew by cell division and differation
4 of 16
Prokaryotic cell
A cell without a nucleur membrane or membrane bound organelles
5 of 16
Eukaryotic cell
A cell with a nucleur membrane or membrane bound organelles
6 of 16
Passive transport
Where no energy is required, only kinetic energy of molecules is used.
7 of 16
Active transport
This requires external energy as molecules are moved against a concentration gradient
8 of 16
Diffusion
The passive transport of particles from a higher concentration to a lower concentration as result of kinetic energy
9 of 16
Concentration gradient
The difference in concentration
10 of 16
Equilibrium
When the concentration is equal on both sides of the membrane. Net movement/diffusion stops but molecules are always moving.
11 of 16
Facilitated diffusion
This uses carrier proteins which combine with the substance to be moved, the carrier changes shape and passes the substance across the membrane.
12 of 16
Osmosis
The net movement of water through a partially permeable membrane from a solution of less negative water potential to a solution of more negative water potential.
13 of 16
Active transport
Movement of solute to a higher concentration. Carrier proteins in the phospholipid bilayer bind to the substance. The protein changes shape, energy is released from the cell and the substance is taken to the opposite side of the membrane.
14 of 16
Endocytosis
The cell changes shape and surrounds the particle. It then engulfs it and transports it into the cell.
15 of 16
Exocytosis
The cell changes shape and surrounds the particle. The particle is pushed out of the cell.
16 of 16

Other cards in this set

Card 2

Front

The minimum distance apart that two can be seen for them to be 2 seperate objects.

Back

Resolution

Card 3

Front

The genes that are switched on to make cells become differenciated

Back

Preview of the back of card 3

Card 4

Front

Cells that have the capacity to self-renew by cell division and differation

Back

Preview of the back of card 4

Card 5

Front

A cell without a nucleur membrane or membrane bound organelles

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cellular processes and structure resources »