Week 2 Practice Test - BSC 2011 Practice Test Plant Form...

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BSC 2011 Practice Test Plant Form and Function, Kitajima Week2 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Root hairs are most important to a plant because they A) contain xylem tissue. 1) _____ B) increase the surface area for absorption. C) anchor a plant in the soil. D) provide a habitat for nitrogen-fixing bacteria. E) store starches. 2) One is most likely to see guttation in small plants when the A) root pressure exceeds transpiration pull. 2) _____ B) transpiration rates are high. C) water potential in the stele of the root is high. D) preceding evening was hot, windy, and dry. E) roots are not absorbing minerals from the soil. 3) Your laboratory partner has an open beaker of pure water. By definition, the water potential ( ± ) of this water is 3) _____ A) equal to the atmospheric pressure. B) a negative number set by the volume of the beaker. C) not meaningful, because it is an open beaker and not plant tissue. D) a positive number set by the volume of the beaker. E) zero. 4) Water potential is generally most negative in which of the following parts of a plant? 5) Active transport involves all of the following except the 6) Photosynthesis begins to decline when leaves wilt because
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