To avoid losing the ability to pull water from the soil as a result of cavitation, plants __________. (Select all correct answer options.)

A. have parallel water conduits
B. generate high tensile forces in the xylem
C. cannot occupy certain habitats
D. close stomata when the tensile forces in
the xylem are very large


A,C,D

Biology & Microbiology

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Which of the following is important for allowing large, charged molecules to pass through the membrane?

A. peripheral proteins B. cholesterol C. glycosylated lipids D. transmembrane proteins E. carbohydrate channels

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Once inside the human body, HIV primarily infects ____

a. liver tissue b. kidney tissue c. red blood cells d. white blood cells e. brain tissue

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All of the following are factors in enzymecatalyzed

reactions that work alone or in combination to lower the activation energy EXCEPT a. helping substrates get together. b. orienting substrates in positions favoring reaction. c. breaking the laws of thermodynamics. d. shutting out water molecules. e. inducing a fit between enzyme and substrate

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Compare the structure and function of three of the following types of blood vessels: arteries, arterioles, veins, venules

and capillaries. What will be an ideal response?

Biology & Microbiology