Top answers

Biology
A Level

What are reflexes and how do they produce movement quickly?

A reflex occurs when movement is produced without conscious thought. They can therefore be described as autonomic and produce movement faster than voluntary movements (which do require conscious thought)....

SW
Answered by Samuel W. Biology tutor
2526 Views

How do I answer questions on the adaptations of the lungs

Start by stating the function of the lungs: gas exchangenext go though the adaptations, with the number of available marks guiding the number of adaptations ~ 1 per mark
Fick's law of diffusion state...

JS
Answered by Justine S. Biology tutor
3453 Views

How does a gene mutation alter a protein?

A genetic mutation, defined as being a change in the DNA base sequence would lead to a change in the primary structure of a protein (a change in the amino acid sequence). This would lead to a change in th...

AH
Answered by Ahmed H. Biology tutor
3381 Views

Describe the process by which Tissue Fluid is formed

High Hydrostatic Pressure at the Arteriole end of the capillary.
This pushes water and other small molecules out of the capillary into the extra cellular space, whilst proteins stay in the capillary ...

IR
Answered by Idrhys R. Biology tutor
4605 Views

How does a nerve ending work?

The action potential has been propagated along the axon of the neuron causing the depolarisation of the membrane. When this action potential reaches the end of the neuron, or the synapse, it also depolari...

JO
Answered by Jake O. Biology tutor
2276 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning