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Biology

A Level

Describe what can be used to determine the time of death of a corpse

there are five different distinct methods whihc can be used to determine time of death:

Body tempreture:

The body cools after death as there are no heat producing metabolic reac...

Answered by Daniella P. • Biology tutor

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Explain the functional differences between a t-RNA and an m-RNA molecule

A tRNA molecule is one which carries an amino-acid and takes it to ribosomes to be inserted into an amino-acid sequence making a protein during the translation step of protein synthesis. An mRNA molecule ...

Answered by Chintan P. • Biology tutor

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Explain the concept of 'chemiosmosis' in oxidative phosphorylation

The process of chemiosmosis essentially addresses the issue of storing chemical energy into a specific bond. The conversion from chemical energy in the coenzymes, such as NADH and FADH

Answered by Narut P. • Biology tutor

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What is eutrophication and what are its effects?

Eutrophication occurs when excess nutrients, like nitrates and phosphates, enter a body of water. These excess nutrients cause an increase in plant and algal growth in the water, often leading to an algal...

Answered by Ignatius-Roy H. • Biology tutor

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