Week 2 Practice Test

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

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
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? A) root hairs 4) _____ B) mesophyll cells of the leaf C) cells of the root cortex D) xylem vessels in leaves E) xylem vessels in roots 5) Active transport involves all of the following except the A) a specific transport protein in the membrane. 5) _____ B) slow movement through the lipid bilayer of a membrane. C) hydrolysis of ATP. D) pumping of solutes across the membrane. E) transport of solute against a concentration gradient. 6) Photosynthesis begins to decline when leaves wilt because A) there is insufficient water for photolysis during light reactions. 6) _____ B) flaccid cells are incapable of photosynthesis. C) stomata close, preventing CO 2 entry into the leaf. D) the chlorophyll of flaccid cells cannot absorb light. E) CO 2 accumulates in the leaves and inhibits photosynthesis. 7) Compared to a cell with few aquaporins in its membrane, a cell containing many aquaporins will A) be flaccid. 7) _____ B) have a faster rate of active transport. C) have a lower water potential.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
D) have a higher water potential. E) have a faster rate of osmosis.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/10/2009 for the course BSC 1454 taught by Professor Gregjones during the Fall '09 term at University of Florida.

Page1 / 6

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

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online