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Pre-Test
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1
The flattened part of a leaf is its
A)blade.
B)petiole.
C)node.
D)stipule.
E)scale.
2
Wood in the stems of woody plants is formed from accumulated
A)primary xylem.
B)secondary xylem.
C)phloem.
D)cork cambium.
E)periderm.
3
Transpiration is regulated by
A)the number of hours of daylight in the day.
B)opening and closing of stomata.
C)the ability of water molecules to adhere to plant tissue.
D)the thickness of the cuticle.
E)None of the above
4
Which of the following cell types has no living cytoplasm at maturity?
A)Tracheids
B)Sieve-tube members
C)Companion cells
D)Collenchyma
E)Meristems
5
_____________ provides the "pull" that raises the water to the tops of tall trees.
A)Osmosis
B)Cohesion
C)Adhesion
D)Transpiration





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