We measure the concentration of glucose, amino acids, and oxygen in the blood as it enters and leaves the small intestine. At the same time, we observe a change in the color of the blood. The results are represented in the table below. Based on the table, answer questions A to D. (5 marks)
Blood entering the small intestine: 022
Blood leaving the small intestine: 052
Glucose Amino acid
A. Compare the concentration of glucose and amino acids in the blood as it enters and leaves the small intestine. What can you conclude? (2)
B. Name the process responsible for the difference in the concentration of glucose and amino acids in the blood entering and leaving the small intestine. (1)
C. Explain how the structure of the small intestine helps in the process shown above. (1)
D. Explain the role of lymphatic vessels in the small intestine. (1)