General Biology

Bio_Unit_4_Exam.docx-Question 1 Cytokinesis typically begins during

Chapter 06 - Test Bank: Energy and Metabolism 6-15 43. The Second Law of Thermodynamics simply states that A. energy can be recycled through the universe. B. energy cannot be created or destroyed, just changed from one form to another. C. disorder (or entropy) in the universe is continually increasing. D. energy is constantly being created in the universe. E. energy can be created but not destroyed. Bloom's Level: Remember Section: 6.02 Topic: General 44. In a chemical reaction in a living system, enzymes are used as catalysts. Which of the following statements about enzymes is incorrect? A. Enzymes enter reactions and can be reused. B. Enzymes speed up chemical reactions in living systems. C. Enzymes reduce the energy of activation necessary for a chemical reaction to go forward. D. Enzymes increase the energy of activation necessary for a chemical reaction to go forward. E. Enzymes are sometimes referred to as biological catalysts; however, not all biological catalysts are proteins. Bloom's Level: Evaluate Section: 6.04 Topic: General 45. Which of the following best depicts a diagram of enzymes and substrates when they react? Assume only forward reactions. Use the following to make your choice: E = enzyme, S = substrate, ES = enzyme-substrate complex, P = products. A. E + P → ES B. E + S → ES + P C. E + S → ES → E + P D. E + ES → P + E E. E + P → EP → S + E Bloom's Level: Understand Figure: 6.10 Section: 6.04 Topic: General Chapter 06 - Test Bank: Energy and Metabolism 6-16 46. A researcher wants to slow down a particular cellular activity by controlling an enzyme that catalyzes that activity. All of the following choices are available except A. increasing the temperature of the cell's environment. B. decreasing the temperature of the cell's environment. C. reducing the pH of the cell's environment. D. increasing the pH of the cell's environment. E. adding substrate as it is depleted to the cell's environment. Bloom's Level: Apply Section: 6.04 Topic: General 47. A new antibiotic has been developed that will use competitive inhibitor enzyme inhibition. This means that the A. antibiotic will compete for substrate binding sites on the enzyme. B. antibiotic will compete for binding sites on the substrate. C. antibiotic will compete for binding sites on the enzyme-substrate complex. D. antibiotic will compete for binding sites on the product that is being produced. E. antibiotic will only compete for binding sites on the receptor proteins embedded in the phospholipid bilayer. Bloom's Level: Understand Section: 6.04 Topic: General 48. A new antibiotic has been developed that will use noncompetitive inhibitor enzyme inhibition. This means that the A. antibiotic will bind to the enzyme and alter the shape of the enzyme. B. antibiotic will bind to the substrate and alter the shape of the substrate. C. antibiotic will bind to the enzyme-substrate complex and alter its shape. D. antibiotic will bind to the product that is being produced and alter its shape. E. antibiotic will bind to the receptor proteins embedded in the phospholipid bilayer, which will in turn close the channels. Bloom's Level: Understand Section: 6.04 Topic: General

BIO | 1010 | General Biology | question bank | Chapter 06 - Test Bank: Energy

Chapter 38 - Test Bank: Transport in Plants 38-10 28. Most carbohydrates manufactured in leaves and other photosynthetic parts are transported through the phloem to the rest of the plant by the process of A. transpiration. B. translocation. C. osmosis. D. receptor-mediated transport. E. turgor pressure. Bloom's Level: Understand Section: 38.06 Topic: Plants 29. Which of the following does not require expenditure of energy? A. accumulation of ions inside a cell B. transport against a concentration gradient C. flow of sucrose and other carbohydrates through sieve tubes D. the loading and unloading of carbohydrates from the sieve tubes E. opening or closing stomata Bloom's Level: Understand Section: 38.06 Topic: Plants 30. Which of the following hormones increases when plants are flooded? A. gibberellin B. auxin C. ethylene D. cytokinin E. abscissic acid Bloom's Level: Understand Section: 38.05 Topic: Plants Chapter 38 - Test Bank: Transport in Plants 38-11 31. Some plants can tolerate flooding conditions by A. formation of aerenchyma. B. opening their lenticels. C. forming additional adventitious roots. D. shedding their bark. E. pumping water out of their roots. Bloom's Level: Understand Section: 38.05 Topic: Plants 32. The process of moving water through a plant by transpiration works because water molecules stick to each other with A. turgor pressure. B. osmosis. C. ionic bonds. D. adhesion. E. hydrogen bonds. Bloom's Level: Understand Section: 38.03 Topic: Plants 33. Which of the following equations represents the total water potential of a plant? A. s 2 + p 2 = w 2 B. Y s = Y p + Y w C. Y p = Y w + Y s D. Y w = Y p + Y s E. Y w = Y s ÷ Y p Bloom's Level: Remember Section: 38.01 Topic: Plants Chapter 38 - Test Bank: Transport in Plants 38-12 34. Pure water without applied pressure has a water potential that is equal to A. infinity. B. 0.0 MPa. C. 1.6 MPa. D. -2.0 MPa. E. atmospheric pressure. Bloom's Level: Remember Section: 38.01 Topic: Plants 35. Water molecules can "stick" to certain surfaces by A. adhesion. B. cohesion. C. root pressure. D. water pressure. E. pneumatophores. Bloom's Level: Understand Section: 38.01 Topic: Plants 36. Water may be lost in liquid form at the edges of the leaves of herbaceous plants through a process known as A. guttation. B. cohesion. C. phloem loading. D. mesophyll adhesion. E. aeration. Bloom's Level: Understand Section: 38.03 Topic: Plants

BIO | 1010 | General Biology | question bank | Chapter 38 - Test Bank: Transp

Chapter 19 - Test Bank: Cellular Mechanisms of Development 19-9 24. The finding that homeotic genes are present in both mammals and insects indicates that these genes must A. control the same traits. B. be on the same chromosomes. C. have arisen very early in the evolutionary history of animals. D. have developed simultaneously. E. code for the exact same proteins. Bloom's Level: Understand Section: 19.05 Topic: Genetics 25. Cells that die of injury usually swell and then burst. Their contents are released into the extracellular fluid. This form of cell death is referred to as A. apoptosis. B. necrosis. C. totipotency. D. induction. E. encoded death. Bloom's Level: Remember Section: 19.06 Topic: Cells 26. Cells that are programmed to die, shrivel and shrink in a process called A. apoptosis. B. necrosis. C. totipotency. D. induction. E. encoded death. Bloom's Level: Remember Section: 19.06 Topic: Cells Chapter 19 - Test Bank: Cellular Mechanisms of Development 19-10 27. Caenorhabditis elegans is an organism with exactly 959 somatic cells. This organism is a(n) A. fruit fly. B. earthworm. C. nematode. D. angiosperm. E. fungus. Bloom's Level: Remember Section: 19.02 Topic: Animals 28. Egg cells were combined with ______ to form the cloned sheep named Dolly. A. skin cells B. sperm cells C. mucous membrane cells D. mammary cells E. ovarian cells Bloom's Level: Remember Figure: 19.19 Section: 19.04 Topic: Genetics 29. In Drosophila , the initial cells formed by cleavage contain different determinants. The determinants direct the path of development. What type of development path is used by Drosophila ? A. regulative development B. cleavage development C. mosaic development D. morphogen development E. induction development Bloom's Level: Remember Section: 19.03 Topic: Cells Chapter 19 - Test Bank: Cellular Mechanisms of Development 19-11 30. Signal molecules that determine relative positions during development are known as A. inductors. B. organizers. C. cadherin domains. D. determinants. E. morphogens. Bloom's Level: Remember Section: 19.03 Topic: Cells 31. In contrast to the cell cycle of adult somatic cells, the dividing cells of an early embryo lack which cell cycle stage(s)? A. M B. S C. G 1 and G 2 D. interphase Bloom's Level: Evaluate Figure: 19.02 Section: 19.02 Topic: Cells 32. A complete cell lineage map exists for A. C. elegans. B. Drosophila. C. mouse. D. human. Bloom's Level: Remember Figure: 19.03 Section: 19.02 Topic: Animals

BIO | 1010 | General Biology | question bank | Chapter 19 - Test Bank: Cellul

Chapter 10 - Test Bank: How Cells Divide 10-1 Chapter 10 Test Bank: How Cells Divide Multiple Choice Questions 1. Bacteria divide by binary _______, in which the cell divides into two nearly equal halves. A. fission B. mitosis C. duplication D. code Bloom's Level: Remember Figure: 10.01 Section: 10.01 Topic: Cells 2. Most eukaryotic cells go through a repeating process of growth and division referred to as the cell ______. A. division B. cluster C. organization D. cycle Bloom's Level: Remember Figure: 10.08 Section: 10.03 Topic: Cells Chapter 10 - Test Bank: How Cells Divide 10-2 3. The accommodation of the very long DNA fiber into a limited space of the nucleus is achieved by coiling around beads of histones into repeating subunits. These subunits of chromosomes are given the name __________. A. DNA B. nucleosomes C. RNA D. coiling proteins Bloom's Level: Remember Figure: 10.05 Section: 10.02 Topic: Cells 4. Each chromosome has a ____________, a point of constriction containing certain repeated DNA sequences that bind specific proteins. A. DNA strand B. centromere C. node D. synapse Bloom's Level: Remember Figure: 10.07 Section: 10.02 Topic: Cells 5. _________ is the portion of the cell cycle in which the chromosomes are invisible under the light microscope because they are not yet condensed. A. Interphase B. Prophase C. Anaphase D. Telophase Bloom's Level: Remember Section: 10.03 Topic: Cells Chapter 10 - Test Bank: How Cells Divide 10-3 6. Prophase is the first stage of mitosis characterized by the _________ of the chromosomes. A. duplication B. splitting C. condensation D. merging Bloom's Level: Remember Figure: 10.11 Section: 10.05 Topic: Cells 7. __________ is the stage of mitosis characterized by the alignment of the chromosomes in a ring along the inner circumference of the cell. A. Interphase B. Telophase C. Prophase D. Metaphase Bloom's Level: Remember Figure: 10.11 Section: 10.05 Topic: Cells 8. The stage of mitosis characterized by the physical separation of sister chromatids is called __________. A. anaphase B. metaphase C. interphase D. telophase Bloom's Level: Remember Figure: 10.11 Section: 10.05 Topic: Cells Chapter 10 - Test Bank: How Cells Divide 10-4 9. The last stage of mitosis is characterized by the disassembly of spindle apparatus, the reestablishment of the nuclear membrane, and the decondensation of the chromosomes into invisible threads. This stage is known as _________. A. interphase B. telophase C. anaphase D. metaphase Bloom's Level: Remember Figure: 10.11 Section: 10.05 Topic: Cells 10. The progress of mitosis is regulated by ______ and their dependent kinases. A. hormones B. chromosomes C. cyclins D. paracrine signaling Bloom's Level: Remember Section: 10.06 Topic: Cells 11. Binary fission in prokaryotes concludes with the accumulation of _______ protein at the midpoint of the cell which facilitates septum formation. A. folded B. p53 C. FtsZ D. phosphorylated Bloom's Level: Remember Figure: 10.01 Section: 10.01 Topic: Cells

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