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a. All nine essential amino acids are found in quinoa - VCE - SSCE Chemistry - Question 3 - 2021 - Paper 1
Question 3
a. All nine essential amino acids are found in quinoa. State what is meant by an essential amino acid. An essential amino acid is one that cannot be synthesised by... show full transcript
Worked Solution & Example Answer:a. All nine essential amino acids are found in quinoa - VCE - SSCE Chemistry - Question 3 - 2021 - Paper 1
Step 1
State what is meant by an essential amino acid.
Answer
An essential amino acid refers to amino acids that the human body cannot produce on its own. Therefore, these must be obtained through diet. They are crucial for various bodily functions, including protein synthesis, tissue repair, and nutrient absorption.
Step 2
Circle the peptide bond in the dipeptide above.
Answer
The peptide bond can be identified by focusing on the bond connecting the carbon atom of one amino acid's carboxyl group to the nitrogen atom of the other amino acid's amino group. This bond is typically represented graphically in the structure, and for the exam response, you should circle this bond.
Step 3
Step 4
Explain why papaya can aid protein digestion.
Answer
Papaya contains an enzyme called papain, which acts as a natural protease. This enzyme helps break down protein molecules into smaller peptides and amino acids, making them easier for the body to absorb during digestion. By including papaya in meals that contain protein, the efficiency of protein digestion can be significantly enhanced.