Top answers

Explain the neuromuscular junction

Action potential causes depolarisation in the presynaptic bulb, this causes voltage-gated calcium channels to open. This causes vesicles containing the neurotransmitter acetycholine to move and fuse with the...
ZO
Answered by Zahra O. • Biology tutor
8864 Views

What is a synapse and how is information passed through it?

A synapse is a receptor that detects
SS
Answered by Shay S. • Biology tutor
3036 Views

How are action potentials propagated across cholinergic synapses?

In order for action potentials to travel to their intended destination they must cross synapses . These synapses are the spaces between neurones' axon terminals and other neurones' dendrites . In the case of...
HS
Answered by Harry S. • Biology tutor
3490 Views

What is the structure of DNA?

DNA stands for deoxyribonucleic acid and is the basic unit of the genetic material that is housed in the nucleus of eukaryotic cells. DNA was first visualised by Watson and Crick, who described it as having ...
LR
Answered by Lewis R. • Biology tutor
6531 Views

What is an atheroma and how can it lead to a heart attack?

Atheroma = Formed of a hard fibrious plaque containing fatty streaks that have hardened over time (through damage such as high blood pressure). There is a build up of cholesterol and other insoluble lipids c...
KL
Answered by Keeley L. • Biology tutor
13180 Views