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What's the difference between facilitated diffusion and active transport?

I can see why you could get these two mixed up as both are movements of molecules which require a transport protein. There are, however, key differences between the two.Facilitated diffusion(FD) is a passive...
FR
Answered by Fazna R. • Biology tutor
9025 Views

Explain how the structure of an egg cell is related to its function.

The egg cell is a specialised germ cell which has a haploid number of chromosomes in order to allow restoration of diploid number (46) at the time of fertilisation.The egg cell contains lipid droplets to pro...
NG
Answered by NESRIN G. • Biology tutor
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Describe the structure of proteins

A protein is composed of polymers of amino acids , joined together by peptide bonds via condensation .A primary structure is the order of amino acidsA secondary structure is the folding of polypeptide bonds ...
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Answered by Annabel L. • Biology tutor
2694 Views

Describe how negative feedback is used to control blood glucose concentration

Blood glucose concentration levels fluctuates depending on what has been eaten and how much activity has been done. alpha and beta (B) cells in the pancreas detect change in the blood glucose concentration. ...
CW
Answered by Catherine W. • Biology tutor
4969 Views

Explain how blood glucose levels are controlled and how this is an example of negative feedback mechanisms.

The pancreas detects rises in blood glucose levelsThis triggers pancreatic beta cells to secrete insulin, and inhibits alpha cells from secreting glucagonInsulin stimulates the uptake of glucose into cells a...
HL
Answered by Hannah L. • Biology tutor
3668 Views