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When comparing the structure of DNA and RNA (draw structure), DNA is double stranded whilst RNA is single stranded. Lets now discuss the molecular structure of DNA and RNA. DNA consists of nitrogen bases ...

While atrial repolarisation exists, you actually can't see it in the ECG! I can draw you a diagram of a normal cardiac cycle: this is the P wave, that you'll know represents the DEpolarisation of the atri...

This is because the QRS complex on the ECG (which represents the Ventricular depolarisation) is at such a high magnitude, it masks the electrical signals that occur due to atrial repolarisation as these t...

The pancreas contains beta cells of the Islet of Langerhans which produces a hormone called insulin. Insulin is responsible for lowering the concentration of glucose in the blood. In type 1 diabetes, not ...

A B-cell with a specific antigen receptor will bind to a complementary antigen, when exposed to that antigen in the body. This specific complementary binding leads to that B-cell becoming activated. An ac...