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Biology
A Level

Explain how applying increasing pressure to a Pacinian corpuscle produces a larger change in membrane potential.

When pressure is applied to a Pacinian corpuscle the membrane is distorted, opening the stretch-mediated Na+ channels. This then allows Na+ ions to move in down their concentration gradient which increase...

Answered by Madeleine C. Biology tutor
11444 Views

How does the structure of glycogen relate to its function?

Glycogen is a polysaccharide with many branches, these branches increase the available surface area for enzymes to hydrolyse the substrate. glycogen is used as a storage of glucose which allows for fast e...

Answered by Jack G. Biology tutor
23123 Views

Describe the relationship between Arbuscular Myccorhyzal fungi and plants

Arbuscular Myccorhyzal fungi (AMF) are fungi which grow onto the roots of plants. In exchange for some carbon from the plant, the fungi act as an extension to the root space available to the plant. This p...

Answered by Jack G. Biology tutor
2083 Views

Explain diffusion?

This is the net passive movement of molecules down the concentration gradient from an area of high concentration to an area of lower concentration, through ...

Answered by Jack N. Biology tutor
2282 Views

Explain multiple alleles with respect to ABO blood group in humans

An allele is a variant or alternate form of gene which are found on same gene loci. Humans are diploid organisms having two alleles for a given gene. However in nature more than two variants are possible...

Answered by Hamsika K. Biology tutor
8079 Views

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