101 final exam

101 final exam - Sheet1 Page 1 1)Which of the following...

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Unformatted text preview: Sheet1 Page 1 1)Which of the following is (are) true for the class of large biological molecules known as lipids? 1) _______ A)They are insoluble in water. B)They contain twice as much energy as an equivalent weight of polysaccharide. C)They are an important constituent of cell membranes. D)Both A and B. E)A, B, and C. 2)After DNA replication is completed, 2) _______ A)each new DNA double helix consists of one old DNA strand and one new DNA strand. B)each of the four DNA strands consists of some old strand parts and some new strand parts. C)one DNA double helix consists of two old strands and one DNA double helix consists of two new strands. D)each new DNA double helix consists of two new strands. E)there are four double helices. 3)What is the term for metabolic pathways that release stored energy by breaking down complex molecules? 3) _______ A)catabolic pathways B)fermentation pathways C)homeostasis D)anabolic pathways E)thermodynamic pathways 4)Male Satin Bowerbirds decorate structures that they build - "bowers"- with parrot feathers, flowers, berries, and other colorfu Females inspect the bowers and decide whether or not to mate with males. If so, they then go off to raise kids on their own. T 4) _______ A)monogamy. B)resource defense polgyny. C)alternative mating tactics. D)promiscuity. E)precociality. Use the following key to answer questions 5-9. Each answer may be used once, more than once, or not at all. A.The statement is true for mitosis only. B.The statement is true for meiosis I only. C.The statement is true for meiosis II only. D.The statement is true for mitosis and meiosis I. E.The statement is true for mitosis and meiosis II. 5)The process is preceded by replication of the DNA. 5) _____________ 6)Homologous chromosomes synapse and crossing over occurs. 6) _____________ 7)A cell divides to produce two daughter cells that are genetically identical. 7) _____________ 8)Centromeres uncouple and chromatids are separated from each other. 8) _____________ 9)Independent assortment of chromosomes occurs. 9) _____________ 10)Which of the following statement is false? 10) ______ A)Mutations are often beneficial. B)Mutation produces new alleles. Sheet1 Page 2 C)Mutation can result from mistakes made during DNA replication. D)Mutations may be neutral E)Mutation is the ultimate source of all heritable variation. 11)Which part of a plant absorbs most of the water and minerals taken up from the soil? 11) ______ A)the thick parts of the roots near the base of the stem B)plasmodesmata C)sieve tubes D)root hairs E)endodermis 12)Given the parents AABBCc × AabbCc, assume simple dominance and independent assortment. What proportion of the off A)1 B) 1/8 C) 3/4 D) 3/8 E) 1/4 13)Which of the following statements about transport in plants is false? 13) ______ A)Hydrogen bonding between water molecules, which results in the high cohesion of the water, is essential for the rise of wate B)Most plant physiologists now agree that the pull from the top of the plant resulting from transpiration is sufficient, when com...
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101 final exam - Sheet1 Page 1 1)Which of the following...

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