Enzymes known as endopeptidases aid digestion of proteins in the small intestine. why do they only bind to amino acids and not other foods ingested?
Model Answer: this is because enzymes are a protein with a specific tertiary structure which have an active site that is complementary to the substrate (in this case the amino acids of a protein) ultimately meaning it will only bind to a protein preventing it from catalysing the incorrect substance
CB
Related Biology A Level answers
All answers ▸How do the components of a plasma membrane affect the movement of substances into and out of a cell, and why is this regulation important?
Explain the process of oxidative phosphorylation and the electron transport chain in the production of ATP in respiration.
Measles, mumps and rubella (MMR) are dangerous diseases that can be fatal to children. The MMR vaccine is given to children at a young age to produce antibodies against these diseases. Describe how giving the vaccine leads to the production of antibodies.
Describe the events of the cholinergic synapse