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How are action potentials transmitted across synapses using neurotransmitters such as acetylecholine?

Action potential causes depolarisation of the pre-synaptic membrane. Opens voltage gated Ca²⁺and Ca²⁺ floods in to the pre-synaptic knob. Ca²⁺binds vesicles containing a...

Answered by Quinn H. • Biology tutor

2482 Views

Where are the Alpha and Beta cells of the Pancreas located and what are their functions in relation to blood glucose homeostasis?

Alpha and Beta cells are the two key cells used in blood glucose regulation in the body.Location = Islets of Langerhans (which are groups of cells located predominantly inside the tail of the pancreas)Bet...

Answered by Josh B. • Biology tutor

3102 Views

Write a critical review of an exhibition you've seen.

Nicole Farhi’s contemporary artistic expression exerts itself through the form of sculpture, completely differing from her prior career within the fashion industry. Having worked within the field for arou...

Answered by Jemma J. • Art tutor

2209 Views

What is the reaction force? (eg from the ground or table)

The reaction force is the force that the table exerts on an object which is pressing on it.
The reason there is a reaction force is because the table is made of atoms and you can imagine these atoms ...

Answered by Nick W. • Physics tutor

3762 Views

Solve the simultaneous equations..... 3x - y + 3 = 11 & 2x^2 + y^2 + 3 = 102 where X and Y are both positive integers.

Here we have two equations with two unknowns, the method we use to solve this is substitution. First, find one of the unknowns in terms of the other by rearranging the first equation to arrive at y = 3x -...

Answered by Reuben W. • Maths tutor

3483 Views