5180205756 - Plants Multiple Choice Identify the letter of...

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Plants Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. You are studying a plant from the arid southwestern United States. Which of the following adaptations is least likely to have evolved in response to water shortages? a. closing the stomata during the hottest time of the day b. development of large leaf surfaces to absorb water c. formation of a fibrous root system spread over a large area d. mycorrhizae associated with the root system e. a thick waxy cuticle on the epidermis ____ 2. Vascular plant tissue includes all of the following cell types except a. vessel elements. b. sieve cells. c. tracheids. d. companion cells. e. cambium cells. ____ 3. Which functional plant cells lack a nucleus? a. xylem only b. sieve cells only c. companion cells only d. both companion and parenchyma cells e. both xylem and sieve-tube cells Use the answers below to answer the following questions. Each answer may be used once, more than once, or not at all. A. parenchyma B. collenchyma C. sclerenchyma D. tracheids E. sieve cells ____ 4. long, thin tapered cells with lignified cell walls that function in support and permit water to flow through pits a. A b. B c. C d. D e. E ____ 5. the least specialized plant cells, which serve general metabolic, synthetic, and storage functions a. A b. B c. C d. D e. E ____ 6. cells with unevenly thickened primary walls that support still-elongating parts of the plant a. A b. B
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c. C d. D e. E ____ 7. mature cells without protoplasts with thick, lignified secondary walls that may or may not function in transport a. A b. B c. C d. D e. E ____ 8. One important difference between the anatomy of roots and the anatomy of leaves is that a. only leaves have phloem and only roots have xylem. b. the cells of roots have cell walls and leaf cells do not. c. a waxy cuticle covers leaves but is absent in roots. d. vascular tissue is found in roots but is absent from leaves. e. leaves have epidermal tissue but roots do not. ____ 9. A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The cells have numerous chloroplasts. What type of cells are these? a. parenchyma b. xylem c. endodermis d. collenchyma e. sclerenchyma ____ 10. The driving force that pushes the root tip through the soil is due primarily to a. continuous cell division in the root cap at the tip of the root. b. continuous cell division just behind the root cap in the center of the apical meristem. c. elongation of cells behind the root apical meristem. d. A and B only. e. A, B, and C. ____ 11. Gas exchange, necessary for photosynthesis, can occur most easily in which leaf tissue? a.
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This note was uploaded on 02/07/2011 for the course BIOS 101 taught by Professor Matthews during the Spring '11 term at DeVry Austin.

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5180205756 - Plants Multiple Choice Identify the letter of...

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