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Explain how an action potential is transmitted from one neurone to another at a synapse.

A good answer would start with a definition of a synapse ('the junction between two neurones') and then be formatted as bullet points or numbers for clarity and backed up with a diagram. Action potentia l ar...
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Answered by Emily K. • Biology tutor
2901 Views

Explain the role of ADH in regulating the water potential of the blood.

Firstly, a description of water potential would be a good place to start. An example definition of this could be: the pressure created by water molecules. The greater the number of water molecules present, t...
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Answered by Ruby H. • Biology tutor
17676 Views

What is photosynthesis and where does in occur?

"Photo" means light and "synthesis" means to make something. Photosynthesis is the production of oxygen and glucose from sunlight, carbon dioxide and water in green plants. The glucose cr...
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Answered by Bella B. • Biology tutor
4926 Views

Explain the process of muscle contraction

Nerve impulses travel along the muscle fibre membrane ( sarcolemma ). The impulse is carried down into the fibre through T-tubules . Impulses are spread along the sarcoplasmic reticulum membrane causing calc...
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Answered by Akash K. • Biology tutor
3948 Views

What is the difference between mitosis and meiosis?

Mitosis and meiosis are both types of cell division.Cells that divide by mitosis produce 2 identical daughter cells - these cells have the same number of chromosomes. These cells are important for growth and...
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Answered by Abbey B. • Biology tutor
3323 Views