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How does glycogen act as a source of energy?

Glycogen is an energy storage molecule found in animal cells. It can be found in many different animal cells but is more prevalent in cells with a higher metabolic rate (those which use more energy), such as...
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Answered by Henry P. • Biology tutor
13620 Views

PDL set an overall training budget of £30 000 and allocated £9 000 for this year’s team building day. Recommend whether they should spend £9 000 on the team building day again next year. Give reasons for your answer.

(PART OF THE QUESTION):Park Designs Ltd (PDL) is a family business that makes high quality wooden furniture to order. The Park family owns all the shares. As part of its commitment to training, PDL run an an...
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Why is graphene able to conduct electricity.

Graphene is a giant covalent compound made purely of carbon atoms. Within graphene each carbon atom is covalently bound to just 3 other carbon atoms. A carbon atom usually makes 4 covalent bonds. This means ...
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Answered by Stella W. • Chemistry tutor
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What is active transport and how is it different from diffusion?

Active transport is the movement of ions or molecules across a cell membrane against a concentration gradient. It requires energy in the form of ATP.Active transport is different to diffusion as diffusion is...
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Answered by Stella W. • Biology tutor
3785 Views

What is an enzyme and explain its mechanism of action

An enzyme is a protein that is used as a catalyst in a reaction within an organism. This is used in such a way that it lowers the energy requirement for a specific reaction to occur and this could either be ...
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Answered by Michael B. • Biology tutor
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