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Explain the difference between ventilation, gas exchange and cell respiration.

ventilation - achieved via breathing, the physical act of exchanging air between the lungs and the atmospheregas exchange - passive diffusion between alveoli and the bloodstream, resulting in the exchange of...
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Answered by Izabela S. Biology tutor
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What is the difference between competitive and non-competitive inhibition?

Competitive inhibition means the inhibitor molecule is a similar shape to the normal substrate molecule. Because of this similar shape, the inhibitor molecule is also able to bind to the active site of the e...
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Answered by Sophie H. Biology tutor
3395 Views

Describe action potential and how it allows for signals to be transmitted along neurons.

To answer this question, we first need to understand what a neuron is and what its components are. A neuron is a nerve cell that transmits electrical impulses between cells to continue an action, to end an a...
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Answered by Oliver M. Biology tutor
2807 Views

Describe how water moves from the soil into a root hair cell

Higher concentration of water outside the cell/lower concentration of solutes outside. Water moves into the cell, down a concentration gradient and through a selectively permeable membrane via osmosis
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Answered by Jess T. Biology tutor
6001 Views

What is the difference between mitosis and meiosis?

Simply enough, Mitosis creates two cells that have the same number of chromosomes and identical chromosomes to the original cell and Meiosis creates 4 cells that have half the amount of chromosomes that are ...
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Answered by Benjamin F. Biology tutor
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