Which of the following components of the blood increases in concentration after passing through the intestinal villus of the person?
A urea
B insulin
C glucose
D carbon dioxide
Why is D?
更新1:
會不會關於這樣呢: 因為那人沒進食24hrs, blood glucose level drops, 在同一blood內, amount of glucose 少了, 這令所以concentration of CO2.( % of CO2 in blood increases)