Top answers

Is there a way of preparing for the HAT?

Yes and no! Firstly, the new HAT test came into effect into 2018, and consists of one unseen source-based question. The idea is that it can't be prepared for, and in terms of learning facts or content, this ...
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Answered by Matilda H. • HAT tutor
3666 Views

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

Action potential causes depolarisation of the pre-synaptic membrane. Opens voltage gated Ca 2+ and Ca 2+ floods in to the pre-synaptic knob. Ca 2+ binds vesicles containing acetylcholine to microtubules. The...
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Answered by Quinn H. • Biology tutor
3003 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)Beta c...
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Answered by Josh B. • Biology tutor
3972 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 around ...
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Answered by Jemma J. • Art tutor
2875 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 been con...
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Answered by Nick W. • Physics tutor
4946 Views