A-LevelBiologyTransport in mammals9700/12 · May/June 2017 · Q291 Mark
Which comparisons of blood, tissue fluid and lymph are correct? 1 Blood has a higher concentration of proteins than tissue fluid because the larger proteins are too big to pass through the endothelial pores into tissue fluid. 2 Lymph has a higher concentration of lymphocytes than tissue fluid as a high number of lymphocytes are located in lymph nodes. 3 Macrophages are too large to leave the blood to enter tissue fluid whereas neutrophils, which are much smaller, can enter tissue fluid and pass into lymph.
A1, 2 and 3
B1 and 2 only
C2 and 3 only
D3 only
✓ Correct answer
B: 1 and 2 only
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Transport in mammals and see which topics are most likely to come up next.
Sign up free →