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Explain the steps of action potential across an axon membrane?

Resting Potential-3 Na+ out, 2 K+ in.Action potential- A stimulus is detected causing Sodium voltage gated channels to open, leading to Na+ to flow into the axon and therefor making the inside less negative....
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Answered by Isabelle J. • Biology tutor
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Why is DNA replication semi-conservative?

DNA is in a double helix structure, meaning there are two strands. When we need DNA to replicate, for example when a cell divides during growth, the strands undergo unwinding. This process is done by an enzy...
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Answered by Emma C. • Biology tutor
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What is the difference between mitosis and meiosis?

Mitosis is the process used by normal body cells for everyday replication to maintain a healthy body, for example tissue regeneration. On the other hand, meiosis is the process whereby the gametes, sperm and...
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Answered by Clare G. • Biology tutor
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What are reflexes and how do they produce movement quickly?

A reflex occurs when movement is produced without conscious thought. They can therefore be described as autonomic and produce movement faster than voluntary movements (which do require conscious thought). Re...
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Answered by Samuel W. • Biology tutor
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How do I answer questions on the adaptations of the lungs

Start by stating the function of the lungs: gas exchangenext go though the adaptations, with the number of available marks guiding the number of adaptations ~ 1 per mark Fick's law of diffusion states that: ...
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Answered by Justine S. • Biology tutor
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