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Biology
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Explain the pathway of a reflex, and name the neurones involved.

(Background) A reflex is a sudden, unconscious and involuntary response to a stimuli. It occurs through 3 different types of neurones or nerve cells: 1) The stimulus (heat, pain, light) i...

Answered by Alexander B. Biology tutor
1526 Views

What is the difference between a nerve synapse and a neuromuscular junction?

The presynaptic part of both junctions are both almost identical, although different neurotransmitters can be used depending on location and function. Acetylcholine is usually found in neuromuscular junct...

Answered by Annabel L. Biology tutor
2506 Views

Describe the processes which occur that allow synaptic transmission

  1. The action potential arrives at the axon terminal 2) Voltage-gated Ca2+ channels open 3) Ca2+ enters the presynaptic neurone 4) Ca2+ signals to neurotransmitter vesicles 5) Vesicles move to the memb...
Answered by Elissa H. Biology tutor
1543 Views

Explain what is meant by "active transport"? (3)

Answer: "The movement of molecules across a membrane from an area of lower to higher concentration. This process requires energy which is supplied in the form of ATP from respiration"Explain: co...

Answered by Molly L. Biology tutor
1860 Views

What are some differences between RNA and DNA?

Structurally these molecules are very similar with a few differences. They are both made up of monomers called nucleotides. Nucleotides simply refer to nitrogenous bases, pentose sugar together with the p...

Answered by Vasiliki K. Biology tutor
2503 Views

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