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Outline the process of neuronal communication between two neurones

Ensure that your answer is precise, without too much waffle - this can confuse examiners and you'll lose easy marks! Take it step by step: First, the neurotransmitter , acetylcholine , is released from the p...
EW
Answered by Ellie W. • Biology tutor
3110 Views

What is the role of adrenaline in glucoregulation?

Although a lot of the time this can seem like a daunting question as there's a lot of specific terminology to use and a variety of reactions/interactions occurring, by splitting it up into short, simple step...
EC
Answered by Ellie C. • Biology tutor
3371 Views

Describe how mRNA is produced in the nucleus of a cell

Helicase (an enzyme) breaks the hydrogen bonds between the DNA resulting in two strands. Only one strand acts as a template. RNA nucleotides attracted to exposed bases according to base pairing rules (A-U, G...
RN
Answered by Rachel N. • Biology tutor
4061 Views

List three differences in the composition of tissue fluid at the arterial end of the capillaries to the tissue fluid at the venous end of the capillaries.

The arterial end contains a higher concentration of oxygen than the venous end.The arterial end contains a higher concentration of glucose/amino acids.The arterial end contains a lower concentration of waste...
AE
Answered by Abdullah E. • Biology tutor
6709 Views

What is transcription and how does it differ in eukaryotes and prokaryotes

Transcription is where mRNA is produced by RNA polymerase from DNA templates.In eukaryotes, the DNA is first transcribed as pre-mRNA, which is then modified to give RNA. In prokaryotes the DNA is transcribed...
NS
Answered by Natsumi S. • Biology tutor
3255 Views