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The drug Atropine blocks the action of of acetylcholine on structures innervated by post-ganglionic cholinergic neurones.

State precisely which part of the nervous system will be affected by atropine and suggest why atropine might be used during anesthesia.

Answer:

It acts on the parasympathetic branch of the a...

RM
Answered by Rana M. Biology tutor
3748 Views

Explain the adaptations of cacti to their environment

Extensive root systems allow for maximum uptake of available water from the ground. Low surface area to volume ratio reduces the rate of evapotranspiration, alongside a thick waxy cuticle covering the sur...

LB
Answered by Lewis B. Biology tutor
7691 Views

What is osmosis? (GCSE question)

Osmosis is the movement of water from an area of high concentration to an area of low concentration across a semi-permeable membrane. 

A semi-permeable membrane acts like a barrier that allows only...

AT
Answered by Arabella T. Biology tutor
6111 Views

Describe how the origin of living systems is explained by natural processes. Please provide supporting evidence for hypotheses.. Sp

Numerous experimental investigations have been conducted to explain the diversity and unity of life. Specifically, these models have aimed to provide evidence that the conditions of early Earth provided a...

RS
Answered by Ruth S. Biology tutor
1503 Views

What is transcription?

Transcription is the process of sections of DNA being converted into mRNA (messenger RNA) that occurs in the nucleus of a cell. DNA is made up of a template strand and a coding strand whi...

CM
Answered by Carolina M. Biology tutor
4047 Views

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