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What is the structure and function of a nerve cell?

Nerve cells serve an important function in our bodies to relay information as electrical signals from the periphery to the central nervous system. Nerve cells are also called 'neurons' and can be as long as ...
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Answered by Amelia H. Biology tutor
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What is the difference between the lock-and-key model and the induced-fit hypothesis of enzyme action?

The lock-and-key model and the induced-fit hypothesis are two potential models for how substrates may bind in the active site of an enzyme. The lock-and-key model suggests that the substrate is completely co...
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Answered by Prachy J. Biology tutor
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TMV can cause plants to produce less chlorophyll. This causes leaf discoloration. Explain why plants with TMV have stunted growth.

Chlorophyll gives plants coloration so a discolored plant would have a lack of chlorophyll. This means that less photosynthesis would occur in the leaves of the plant, so less glucose is made as a result. Th...
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How does ATP store energy?

ATP has 3 phosphate groups. Their bonds are unstable and so have a low activation energy, which means they are easily broken. When they break by the addition of water during a hydrolysis reaction, they relea...
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Answered by Lara I. Biology tutor
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What was the significance of Meselson-Stahls experiment? Which form(s) of replication did it disprove and which one(s) did it provide evidence for?

Meselson-stahl's experiment provided evidence for the semi-conservative DNA replication hypothesis, given that 1st and 2nd bacteria cultures showed ratios of N14 and N15 in their DNA that followed that speci...
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Answered by Olivia T. Biology tutor
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