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Biology
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Albumin (a globular protein) is a solute found in blood plasma. In liver disease, people cannot produce sufficient amounts of albumin. Describe and explain how this change would affect red blood cells.

The solute potential of the blood plasma would be less negative or higher. Higher solute potential = higher water potential. 

Water moves via osmosis from areas of high water potential to low water...

CD
Answered by Caolan D. Biology tutor
9360 Views

Explain how a change in a sequence of DNA bases could result in a non-functional enzyme

A mutation in the DNA sequence may lead to a different amino acid sequence may lead to a different amino acid being produced in the primary protein structure of the enzyme during translation. This may cau...

YA
Answered by Yusuf A. Biology tutor
20899 Views

Describe how a Pacinian corpuscle produces a generator potential when stimulated.

The increased pressure caused by the stimulus opens pressure gated sodium ion channels allowing Na+ ions to diffuse (down a concentration gradient) into the axon. This sudden influx of Na+ ions causes a l...

YA
Answered by Yusuf A. Biology tutor
14611 Views

Outline the main differences between an artery and a vein? (6 marks)

An artery carries blood away from the heart. The blood is oxygenated with the exception of the pulmonary and umbilical artery. The vessel must cope with high pressure demands and therefore has thick, elas...

KB
Answered by Katy B. Biology tutor
2695 Views

What is the difference between genotype and phenotype?

Genotype is the alleles that you have for a specific gene

Phenotype is the physical expression of the genotype (think phenotype, physical expression to remember which is which!)

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AC
Answered by Abigail C. Biology tutor
10880 Views

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