final - Bios 100 Spring 2010 Final exam 1. You have...

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Bios 100 Spring 2010 Final exam 1. You have developed a mutant strain of plant that lacks a Casparian strip. You plant these plants in natural environments and plant wild type (normal) plants of the same species next to them as a control. What do you predict will be the growth of the mutant plants? A. Since the mutant plants lack a Casparian strip, they will absorb more water from the environment and they will grow better than the wild type plants. B. The mutant plants will absorb more toxins from the environment into their xylem, so they will grow more poorly when compared to wild type plants . C. There will be no noticeable difference in growth of the normal and wild type plants 2. Which of the following cells and tissues does NOT physically support the plant A. Collenchyma cells B. Sieve-tube elements C. Vessels D. Sclerids E. All of the above physicallly support the plant 3. A fruit is a ripened ______ A. Egg sac B. Ovule C. Ovary D. Female gametophyte E. Anther 4. All of the following plant groups contain vascular tissue except _______ A. Mosses (bryophyta) B. Ferns (pteridophyta) C. Pines (coniferphyta) D. Flowering plants (angiosperms) 5. Which of the following statements represents a major difference between prokaryotic cells and eukaryotic cells? A. Prokaryotes are generally larger in size than eukaryotes B. Eukaryotes have DNA while prokaryotes do not. C. Prokaryotes are not able to carry out aerobic respiration, a process that requires a complex inner-membrane system D. Prokaryotes have cell walls while eukaryotes do not. E. Eukaryotic cells tend to have much more extensive inner membrane systems and larger numbers of intracellular organelles than do prokaryotes
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6. Which represents the typical pattern of travel for a protein that is secreted from a cell? A. endoplasmic reticulum, vesicle, lysosome, fusion of lysosome with plasma membrane B. nucleus, smooth endoplasmic reticulum, vesicle, fusion with plasma membrane C. RNA, DNA, amino acid, polymer formation, secretion to exterior of cell D. vesicle, trans face of Golgi apparatus, vesicle, cis face of the Golgi apparatus, fusion with plasma membrane E. lumen of rough endoplasmic reticulum, vesicle, cis face of the Golgi apparatus, trans face of the Golgi apparatus, vesicle, fusion of vesicle with plasma membrane 7. The side chain of an amino acid will determine A. whether the amino acid is considered hydrophobic or hydrophilic B. whether the amino acid is considered small or bulky C. whether the amino acid is considered to be neutral or electrically charged D. all of the above E. none of the above 8. How could a slight change in pH affect the shape of a protein? A. The change in pH could destroy the amino acids if the environment became too basic B. The change in pH could cause the peptide bonds to become weak and break C. The change in pH could cause changes in the nature of the acidic and basic amino acids, which could affect the tertiary structure D. The change in pH could alter the primary structure of a protein
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final - Bios 100 Spring 2010 Final exam 1. You have...

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