BIS001C MT1 F07 Maloof

BIS001C MT1 F07 Maloof - BIS1C Midterm 1 Exam Fall 2007...

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BIS1C Midterm 1 Exam Fall 2007 Test Version: A This exam consists 50 questions worth 1 point each and is 6 pages long. Please check your exam to make sure it is complete. Use a #2 pencil and completely fill in the bubbles. Clearly PRINT your name and ID number on the scantron form AND fill in the proper ID and EXAM VERSION bubbles . When finished, turn in the scantron form to your TA. Please read each question carefully and completely before chosing the one best answer. 1 BIS1C MT1 Fall 2007 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Choose the correct order based on water potential from low to high: a. soil < root xylem < leaf mesophyll < leaf airspace < outside air b. outside air < leaf aispace < leaf mesophyll < root xylem < soil c. outside air < leaf airspace < leaf mesophyll < soil < root xylem d. leaf airspace < leaf mesophyll < root xylem < soil < outside air e. none of the above are correct ____ 2. Which of the following cause stomata to close? a. ABA and dehydration d. ABA b. high internal [CO2] e. all of the above c. dehydration ____ 3. The cohesion-tension theory explains: a. how water is pulled up through the xylem b. how solutes and sugars move through the phloem c. how water is pushed up through the xylem d. how water crosses cell membranes e. source-sink relationships ____ 4. Trichomes are associated with ____. a. periderm b. parenchyma c. epidermis d. phloem e. xylem ____ 5. In phloem transport, the positive pressure results from: a. root pressure b. the osmotic uptake of water by sieve tubes in source tissue c. the accumulation of minerals by the vascular tissue in the root d. the passage of water from sieve tubes to xylem tissue e. the osmotic uptake of water by the sieve tubes in the sink tissue
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BIS 1C Midterm 1 F2007 Test Version: A 2 ____ 6. Water moves through a plant because of ____. a. the strength of hydrogen bonds holding water molecules together b. transpirational pull c. the replacement of lost water molecules d. the cohesion of water molecules e. all of the above ____ 7. Large pressure gradients arise in sieve tube systems by means of ____. a.
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BIS001C MT1 F07 Maloof - BIS1C Midterm 1 Exam Fall 2007...

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