During the late winter, maple tree sap starts to flow from the roots towards the branches of a tree. Maple sap is composed of water and sugars. How is it possible for a maple tree to have glucose available in sap when the tree does not have leaves on its branches?
A) Glucose is produced in the roots and transferred throughout the tree during late winter.
B) Glucose is stored in the roots over winter and flows within the tree when leaves and buds start to form.
C) Glucose is absorbed by the root systems and can be first absorbed in late winter as the ground starts to thaw.
D) Glucose is still produced during winter within the bark of the tree.
Ans: B) Glucose is stored in the roots over winter and flows within the tree when leaves and buds start to form.
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