Search over 10,000 free study notes

This type of question requires careful explanation and therefore would need to be broken down into chunks. One of the reasons for this is that it may be completely new concepts for students. My answer to a s...

The left atrium receives oxygenated blood from the lungs via the pulmonary vein (the only vein to pump oxygenated blood) and ejects via the left ventricle to the aorta.Left sided heart failure means that the...

Food is masticated and broken down, to increase its surface area, in the mouth. Particularly, starch is broken down by the enzyme amylase. An enzyme is a biological catalyst that has an active site and is co...

glucose moves in with sodium into epithelial cellvia carrier/channel protein sodium removed from epithelial cell by active transport/sodium-potassium pump into blood therefore maintaining low conc of sodium ...

Proteins are comprised by amino acids and the order of these amino acids determines the type of protein. This order is coded by the sequence of DNA bases. Transcription & translation : In the nucleus, DN...