PracticeExam1 - I. Multiple Choice Questions (4 points...

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I. Multiple Choice Questions (4 points each, choose the best possible answer ). 1. Which of the following is not part of a phloem tissue? A. Tracheids B. Sieve cell C. Sieve tube element D. Companion cell E. Sclerenchyma cell 2. The orientation of cellulose microfibrils in the plant cell walls is determined by A. The pattern of the actin cytoskeleton below the plasma membrane. B. The organization of the cellulose synthesizing complexes at the plasma membrane. C. The orientation of the cortical microtubule arrays below the plasma membrane. D. The pattern of lignification. E. The orientation of the deposited matrix carbohydrates. 3. A synthetic tree created by two Cornell scientists is the first ever laboratory experiment that supports which of the following theories: A. pressure-flow theory B. translocation theory C. bulk-flow theory D. cohesion-tension theory E. capillary theory 4. Root hair and guard cell are two forms of A. sclerenchyma. B. epidermal tissue. C. parenchyma. D. xylem cells E. lateral meristem 5. Which of the following statements about pectins is NOT true? A. They are synthesized in the Golgi body and secreted in vesicles. B. They can only be solubilized by use of a strong alkali (2-4M NaOH). C. They often contain acidic sugars. D. They are the gel-forming components of the cell wall. E. They are capable of binding Ca 2+.
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6. What is the name given to the band of suberin surrounding the cells of the endodermis, which blocks the apoplastic route of water movement? A.
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PracticeExam1 - I. Multiple Choice Questions (4 points...

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