Enzyme that helps digesting proteins is:

What are simple proteins made out of?

What are complex proteins made out of?

Which organ produces protease?

What is the energy value [in kilojoules] in 1g of protein?

Which of these products contains at least 20% of proteins

Select only proteins

Which one of macronutrients is responsible for iron metabolism?

Which of these products does not contain reasonable amount of proteins?