exam 2 answers - Chapter 35: Plant Structure, Growth, and...

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Chapter 35: Plant Structure, Growth, and Development Chapter Questions 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) Which part of a plant absorbs most of the water and minerals taken up from the soil? A) taproots B) root hairs C) the thick parts of the roots near the base of the stem D) storage roots E) sections of the root that have secondary xylem 3) An evolutionary adaptation that increases exposure of a plant to light in a dense forest is A) closing of the stomata. B) lateral buds. C) apical dominance. D) absence of petioles. E) intercalary meristems. 4) A person working with plants may remove apical dominance by doing which of the following? A) pruning B) deep watering of the roots C) fertilizing D) transplanting E) feeding the plants nutrients 6) Land plants are composed of all the following tissue types except A) mesodermal. B) epidermal. C) meristematic. D) vascular. E) ground tissue. 7) Vascular plant tissue includes all of the following cell types except A) vessel elements. B) sieve cells. C) tracheids. D) companion cells. E) mesophyll cells. 8) Which functional plant cells lack a nucleus at maturity? A) xylem only B) sieve cells only C) companion cells only D) both companion and parenchyma cells E) both xylem and sieve-tube cells The questions below use the following answers. Each answer may be used once, more than once, or not at 1
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all. A. parenchyma B. collenchyma C. sclerenchyma D. tracheids E. sieve cells 9) long, thin tapered cells with lignified cell walls that function in support and permit water to flow through pits D 10) living cells that lack nuclei and ribosomes; they transport sugars and other organic nutrients E 11) the least specialized plant cells, which serve general metabolic, synthetic, and storage functions A 12) cells with unevenly thickened primary walls that support still-elongating parts of the plant B 13) mature cells without protoplasts with thick, lignified secondary walls that may not function in transport C 14) Which of the following is not a characteristic of parenchyma cells? A) thin primary walls B) flexible primary walls C) lack of specialization D) lack of secondary walls E) Have secondary thickenings 15) Which of the following tissues is incorrectly matched with its characteristics? A) collenchyma-uniformly thick-walled supportive tissue B) epidermis-protective outer covering of plant body C) sclerenchyma-heavily lignified secondary walls D) meristematic tissue-undifferentiated tissue capable of cell division E) parenchyma-thin-walled, loosely packed, unspecialized cells 16) The fiber cells of plants are a type of
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exam 2 answers - Chapter 35: Plant Structure, Growth, and...

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