Close-up view of a leaf. This is lit to emphasise the veins. Each vein is a vascular bundle, with the xylem and phloem surrounded by a sheath of lignin. The xylem carries water and minerals into the leaf, the phloem takes away the sap, with dissolved sugars produced by photosynthesis, away from the leaf.
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Details
Creative#:
TOP15316326
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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