Top answers

What is osmosis?

Osmosis is the diffusion of water molecules from a low solute concentration to a high solute concentration across a partially permeable membrane.
FH
Answered by Fay H. • Biology tutor
2496 Views

What is osmosis?

Osmosis is the diffusion of water molecules from an area of high water potential to low water potential, across a selectively/ permeable membrane. + diagram on whiteboard
AK
Answered by Anna K. • Biology tutor
2375 Views

Describe how an impulse travels across a synapse

The impulse arrives at the synapse. The neurone releases neurotransmitters into the synapse. The neurotransmitter diffuses across the synapse and binds to a receptor on the next neurone. This causes the next...
FH
Answered by Fay H. • Biology tutor
2907 Views

Describe the process of Prokaryotic cell replication by Binary Fission.

Firstly, the circular DNA and plasmids replicate - the plasmids replicate multiple times, but the main DNA loop only replicates once. Next the DNA moves to opposite poles as the cell gets bigger. Then the cy...
MG
Answered by Maisie G. • Biology tutor
4526 Views

Describe the involuntary Relay Arc pathway of a nervous impulse, from the stimulus to the reaction

Stimulus eg (thorn prick) > Sensory Neurone > Relay Neurone (In Central nervous system) > Motor Neurone > Effector muscle (eg. in arm, to move hand away)Whiteboard would be use to draw pathway in...
IJ
Answered by Isabella J. • Biology tutor
2180 Views