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Describe how oxygen in the air reaches the capillaries surrounding the alveoli.

As you breathe in, air passes down your trachea and then into the bronchi and bronchioles. The bronchioles divide further into even narrower branches which end in small air filled sacks called alveoli. The a...
NA
Answered by Naomi A. • Biology tutor
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What are the shape of p orbitals?

The shape is a figure of 8 across all three axis, with a node at the origin
GD
Answered by George D. • Chemistry tutor
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When you are working out dy/dx = 0, why do you do this and what does it mean?

It relates back to what we actually mean why we say dy/dx. Simply put, dy/dx means the rate of change of y with respect to the rate of change in x over a infinitely small space of time. Therefore, when we ar...
MJ
Answered by Matthew J. • Maths tutor
32526 Views

What is the sequence of events involved in transmission across a cholinergic synapse

For transmission across the synapse to be initiated, an action potential must arrive at the pre-synaptic knob and open voltage- gated ion channels. Once the channels are open, calcium ions are able to diffus...
ES
Answered by Ellen S. • Biology tutor
14450 Views

How does Margaret Atwood create a sense of reality in her novel, ‘The Handmaid’s Tale’?

Intro: Start with a relevant quote : ‘context is all’. We are encouraged to remember this throughout the novel. Atwood’s realism is strongly connected to the events within the novel which are based on real l...
MS
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