Topic 16Biology
B3.2 Transport
Bulk transport systems — animal circulatory systems with vessels and a heart, plant xylem driven by transpiration, and plant phloem driven by pressure flow.
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Animal circulatory systemsSign up
Arteries, capillaries, and veins · Mammalian heart and cardiac cycle (HL)
35 min
Transport in xylemSign up
Cohesion-tension theory and xylem structure · Root pressure (HL)
30 min
Transport in phloem (AHL)HLSign up
Tissue fluid and lymph (HL) · Phloem and pressure flow (HL)
35 min