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Which mechanisms control the homeostasis of blood sugar levels in the human body? How do these regulate the concentration of sugar in the blood?

The homeostasis of blood sugar levels in controlled via a careful balance of hormonal secretions leading to an increase of blood sugar concentation when needed. when the blood sugar concentration is too high...
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Answered by Harry G. • Biology tutor
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Explain the neuromuscular junction

Action potential causes depolarisation in the presynaptic bulb, this causes voltage-gated calcium channels to open. This causes vesicles containing the neurotransmitter acetycholine to move and fuse with the...
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Answered by Zahra O. • Biology tutor
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What is a synapse and how is information passed through it?

A synapse is a receptor that detects
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Answered by Shay S. • Biology tutor
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What is a chromosome?

A chromosome is a long, tightly coiled molecule of DNA. Chromosomes are split into sections called genes. In the human body there are 48 chromosomes within each cell (except sex cells which have 23). Chromos...
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Answered by Nathaniel S. • Biology tutor
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How does vaccination work?

Vaccines contain weakened (or attenuated) antigens which cause immunity to a disease without actually giving the person the disease. They are usually adminstered by injection or sometimes orally (by mouth), ...
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Answered by Lizzy G. • Biology tutor
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