Top answers


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 states that: ...
JS
Answered by Justine S. Biology tutor
3990 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 the s...
AH
Answered by Ahmed H. Biology tutor
5095 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 because ...
IR
Answered by Idrhys R. Biology tutor
5382 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 depolarises...
JO
Answered by Jake O. Biology tutor
2902 Views

How is tissue fluid formed and returned to the circulatory system?

At the arterial end of a capillary the blood is under a fairly high pressure. This hydrostatic pressure 'squeezes' a fluid called tissue fluid out of the pores in the walls of the capillary (fenestrations). ...
BR
40290 Views