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Describe how the fluidity of the membrane and how this allows transport across it.

The fluidity of membranes allows it to invaginate and form vesicles. This is important for the process of endocytosis by which the cell is able to uptake materials from the extracellular environment. Vesicle...
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Answered by Naomi H. • Biology tutor
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A neuron transmits an electrical impulse across a synapse in order to pass this impulse to the next neuron. Outline this process.

This is an example of a common process that must be known: Impulse reaches the synaptic bulb, causing calcium channels to open and calcium to enter. This causes synaptic vesicles to move towards the pre-syna...
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Answered by Matthew M. • Biology tutor
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can you explain mitosis?

Mitosis is a part of the cell cycle in which the cell divides into two. There are a number of important steps in the process of mitosis including: anaphase, metaphase, prophase and telophase. Before mitosis ...
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Answered by Hannah B. • Biology tutor
3121 Views

Describe the blood flow through the heart

Venous blood enters the heart through the vena cava, it drains into the right atrium. The blood then flows through the tricuspid valve into the right ventricle. When the heart contracts the blood is ejected ...
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Answered by Alexandra U. • Biology tutor
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How does the body control blood glucose levels?

The pancreas is the main organ involved with controlling blood glucose levels. It is situated in the abdomen just below the stomach. It consists of alpha and beta cells which are arranged into clusters known...
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Answered by Adeola S. • Biology tutor
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