Top answers

Describe the mechanism of inhalation.

The external intercostal muscles contract, pulling the ribs upwards and outwards. At the same time the muscles of the diaphragm contract, pulling the diaphragm down and causing it to flatten. Both of these a...
IJ
Answered by Isabelle J. • Biology tutor
23352 Views

Trypsin is a protease produced in an inactive form in some cells of the pancreas. Suggest the advantage of producing it in an inactive form?

Trypsin is a protease that acts in the small intestine to digest proteins. The advantage of it being produced inactive form in the pancreas is so that it doesn't digest pancreatic proteins. This means it doe...
SA
Answered by Sarah A. • Biology tutor
20998 Views

How do organisms generate ATP?

Plants - harness light energy into chemical energy of ATP (photosynthesis) Eukaryotes- extract high energy electrons from fuels (mostly sugars) to synthesise ATP. This process is called oxidative phosphoryla...
MP
Answered by Mihai P. • Biology tutor
3861 Views

How are glucose molecules absorbed in the gut?

Food consists of many types of molecules, these are: polysaccharides (a chain of single molecular units); dissacharides (a pair of single molecular units) and monosaccharides (the individual units themselves...
AN
4313 Views

What is the difference between meiosis and mitosis?

Function: Mitosis is used in the replication of body cells. It occurs every day to replace cells that have died or have been damaged, for growth and also in asexual reproduction. Meiosis is used to produce g...
AA
Answered by Amy A. • Biology tutor
3716 Views