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CFU Xylem Structure
Histology: the study of the microscopic structure of tissues.
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* Indicates required question
Which molecule forms the ring structures shown in this micrograph of xylem tissue?
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1 point
phospholipid
cellulose
lignin
cytoskeleton
Xylem cells:
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1 point
transport sugar
stack to form a continuous hollow tube
are living
are metabolically active
Lateral cross section of xylem
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2 points
A
B
cellulose
lignin
A
B
cellulose
lignin
This California Coastal Redwood is able to grow almost 400 feet tall! How??
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For context, that's as tall as a 37 story building!
1 point
hydrostatic pressure
thick lignified cell walls
bones
gravity
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