Top answers

Biology
A Level

What are the steps involved in glycolysis and why does glycolysis occur?

Both aerobic and anaerobic respiration begin with glycolysis, which is the splitting of the 6 carbon glucose into 2, 3 carbon pyruvate molecules. This happens because glucose cannot be used directly by ce...

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Answered by Lara I. Biology tutor
10434 Views

What are antibodies and how do they work?

Antibodies are proteins which belong to a class known as immunoglobulins. They are made up of chains of amino acids joined by peptide bonds. Antibodies have an important role in the immune system of many ...

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Answered by Anna H. Biology tutor
7888 Views

How does water enter and move up the plant?

It moves up through a process known as transpiration. This is when water leaves the through the stomata, creating a negative hydrostatic pressure which pulls the water up through the xyle...

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Answered by Emily P. Biology tutor
26817 Views

How is DNA structured?

DNA stands for deoxyribonucleic acid. Two polynucleotide (which means nucleotide polymer) strands are twisted together and form what looks like a ladder - the DNA double helix. These two str...

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Answered by Sadie H. Biology tutor
2708 Views

Explain how ATP is generated from reduced NAD and reduced FAD via the electron transport chain?

Reduced NAD is oxidised at the first carrier of the electron transport chain and reduced FAD oxidised at the second. The free electrons move into the system of carriers within the membrane while the proto...

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Answered by Lewis G. Biology tutor
17968 Views

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