Lignin is to cellulose strands as ____ is to
epidermal cells.
a. cuticulin
b. epidermerin
c. pectin
d. cutin
e. chitin
D
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Anabolic and catabolic pathways use different cofactors for similar reactions.
Answer the following statement true (T) or false (F)
Reptiles can maintain their internal body temperature by
A. behavioral mechanisms. B. drinking warm or cool water. C. eating and oxidizing more food. D. an effective insulating covering. E. rerouting blood to distribute heat.
Enzymes speed chemical reactions by
A. supplying energy to the reaction process. B. lowering the energy required to start a chemical reaction. C. lowering the amount of reactants that are needed. D. maintaining chemical equilibrium. E. raising the temperature of the surroundings.
During the spring and fall each year thousands of maple trees are tapped for their fluids in order to make "real" maple syrup. If you were to tap into a maple tree to extract the syrup (sucrose) which tissue layer do you want to tap into?
A. epidermis B. xylem C. ground tissue D. phloem E. periderm