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Describe the reactions that link glycolysis to the krebs cycle

Firstly, try to remember what the intermediate reaction was called (Link Reaction). Name this, as if the name was not stated in the first place in the question, the examiner is most likely looking for your k...
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Answered by Seth E. • Biology tutor
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Describe three effects of smoking on the alveoli

Answers could include:Thinning of alveoli walls to reduce the size of the alveoli air sacsSacs lose their elasticity leading to a difficulty in expelling carbon dioxide and taking in oxygenDecrease in diffus...
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Answered by Tash B. • Biology tutor
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Define the term 'water potential' and describe the difference between isotonic, hypotonic and hypertonic solutions. Suggest the different effects on cells placed in the different solutions.

Water potential basically means how likely it is for water molecules to diffuse out of or into a solution.Pure water (i.e. water with no solutes) has a water potential value of 0.As you add solutes (i.e. sug...
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Answered by Elliot T. • Biology tutor
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Describe the role of a ribosome in the production of a polypeptide

mRNA from the nucleus binds to a ribosome which is either free in the cytoplasm or associated with the rough ER. The ribosome binds at the 5' end and scans to the start codon (AUG). The ribosome allows tRNA ...
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Answered by Josh M. • Biology tutor
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What are the key structural differences between a eukaryotic and prokaryotic cell?

Eukaryotic Cells - Eukaryotic cells are multicellular and more complex- Contain membrane bound organelles, so this includes a nucleus, which contains the genetic material as chromosomes, but other organelles...
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Answered by Adam A. • Biology tutor
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