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What is the process of maintaining a constant internal enviornment, and why does it matter?

The process by which our bodies maintain a constant internal environment is homeostasis. This includes things such as body temperature, blood glucose levels and pH levels. This is important because there ...

Answered by Eleanor M. • Biology tutor

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How would you explain oxidative phosphorylation and chemiosmosis?

Reduced coenzymes produced in the Krebs cycle; glycolysis and Link Reaction (Reduced NAD and FAD) carry Hydrogen ions and electrons to the inner mitochondrial membrane , within the membrane are a numbe...

Answered by Joseph B. • Biology tutor

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What are enzyme inhibitors?

Enzyme inhibitors function to slow down the rate of an enzyme catalysed reaction by interfering with the enzyme in some form. There are two main types of inhibitors:

Answered by Yasmin A. • Biology tutor

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What are the roles of the sinoatrial node (SAN) and the atrio-ventricular node (AVN)?

The heart muscle is myogenic and initiates a heartbeat through an electrical conduction system; both the sinoatrial node and atrio-ventricular node are essential in this mechanism.

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Answered by Shelby P. • Biology tutor

49248 Views

What events occur during the cardiac cycle?

Within the heart the atria contract creating a high pressure and squeezing blood into the ventricles. The semi lunar valves are closed so pressure within the ventricles builds up.Pressure within the ve...

Answered by James H. • Biology tutor

11438 Views