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What are the stages of mitosis?

There are 5 stages of mitosis. Prophase, Metaphase, Anaphase, Telophase and Cytokinesis. An easy mnemonic is P ee (on the) MAT C at. Prophase - 3 things occur: 1) Chromatin condenses and tightly coils to for...
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Answered by Neha K. • Biology tutor
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Explain how you would expect glycogen levels in the liver to change after a meal, and why it would change in that way.

Glycogen levels are expected to increase in the liver after a meal. This is due to the digestion of the meal leading to an increase in blood sugar levels, triggering insulin release from the pancreas. Insuli...
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Answered by Daniela M. • Biology tutor
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How does an enzyme work?

Enzymes are proteins, which are made up of long chains of aminoacids. Proteins have a primary structure (the sequence of aminoacids in the chain), a secondary structure (specific 3D shapes of the chain forme...
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Answered by Cezar B. • Biology tutor
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How does the electron transport chain work?

The electron transport chain is a collection of proteins ( complexes ), of which there are 4 types, whose purpose is to pump protons into the intermembrane space. These protons will be used by the ATP syntha...
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Answered by Cezar B. • Biology tutor
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How is the heart beat controlled?

Cardiac muscle is myogenic i.e has the ability to contract naturally, without external stimuli, such as action potentials arriving via nerves. For the whole heart to contract in an organised manner, there ne...
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Answered by Cezar B. • Biology tutor
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