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1002 spring05 test3

1002 spring05 test3 - Name 00.1 gaijfi Form A ‘ Biology...

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Unformatted text preview: / Name: 00.1% gaijfi Form A ‘April 12, 2005 Biology 1002 - Section 6 Dr. Christopher Gregg Instructions: 1. Read each question and all choices carefully before answering 2. Make sure your name (Last, First) and SS# are bubbled in on the Scantron 3. When finished, turn in your Scantron sheet and keep your exam booklet Exam #3 Matching Sensory reception: Match each term with the most suitable description. Each answer can be used only once, so choose wisely. a: the part of the outside world that an animal sees tar. region of brain where body surface can be mapped 42’ form of energy that a specific sensory receptor can detect a. touch, pressure, temperature, pain, & muscle sense e. encoded in the frequency and number of action potentials somatic sensations somatosensory cortex variations in stimulus intensity visual field stimulus 2: n 53:5,“!‘37‘ Protection, support, & movement: Match the M words with their defining feature. Each answer can be used only once, so choose carefully. as actin's partner k blood cell production sf brownish-black pigment ~d.’ bundles of muscle cells in connective tissue sheath 9: threadlike parts in muscle cells muscle melanin myosin marrow myofibrils skit) 95093749) lwln _._._,,, .. Name: Muitiple Choice identify the letter of the choice that best completes the statement or answers the question. 11. Cells formed by mitosis in different parts of the embryo of a germinating seed are different from one another in all but _. a. hormone content c. enzymes present (by genetic composition d. metabolic rate 12. Imbibition is _. a. the rapid growth that occurs after fertilization b. the loss of salt from a plant 0. the digestion of the seed coat @ the absorption of water 13. A house plant that has been placed in the window will grow toward the source of light (phototropism) because auxin _. a. becomes more concentrated on the illuminated side of the plant 56? becomes less concentrated on the illuminated side of the plant c. inhibits the growth of cells on the shady side, so the cells on the sunny side grow faster d. becomes more concentrated in the roots of the plant 14. Removing an overripe mushy apple from a container of otherwise good apples helps preserve the good apples. Why? (What helps fruit ripen?) a. Ethanol production in the good apples is inhibited by the lack of ethanol production in the overripe apple. :9. The bad apple makes ethylene gas which can cause the good apples to become overripe. c. Gibberellic acid helps preserve the good apples. d. The production of cytokinins is inhibited in the remaining good apples. 15. During winter or periods of drought, which of the following plant hormones inhibits growth and seed germination? a. Auxin c) Abscisic acid b. Gibberelin d. Ethylene 16. Phytochroms in the inactive Pr form is converted into the active Pfr form by _. 61 red light c. blue light b. far red light d. yellow light 17. When plants shift their growth in response to the pull of gravity, they show _. a. phototropism c. thigmotropism gravitropism d. photoperiodism 18. Ali the processes that lead to the death of a plant or any of its organs are called _. a. vemalization c. senescence b. dormancy @ abscission 19. _ are groups of specialized cells with a common structure and function. @ Tissues c. Organisms b. Organ systems d. Organs 2 Name: 20. 21. 22. 23. 24. Form A Which of the following represents the correct hierarchy of organization in the human body? (go from the simplest to the most complex) @ cellsetissues-arorganseorgan systems tissues—aorgansacellsaorgan systems c. cells—>tissues—mrgan systems—mrgans d. tissues—rcells—ylorgans-yorgan systems Two or more tissues that together perform a special function are called _. a. organisms c. cells b. organ systems @ organs Epithelial tissues are classified according to the _ of their cells and the number of cell layers. a. amount of quilting c. size b. chromosome number Q) shape Blood is considered a type of __ tissue. a. nervous c. epithelial r16) connective d. muscle Only _ muscle does not have striations. a. smooth (Q cardiac in. skeletal .d. body builder 25. Cells that store lipids (fats) for long-term energy are found in _ tissue. adipose c. nervous muscular d. epithelial 26. 27. 28. 29. 30. What part of your body would be considered part of its posterior surface? (Mid—exam break: the answer is "c”) a. top of the head (c) back b. chest d. soles of feet _function in cell-to-cell communication. a. Adhering junctions 562 Gapjunctions b. Cell-to-cell phones d. Tightiunctions This part of a neuron carries the signal (action potential) from the cell body down to the structure that will transfer it to the next cell _. a. axon ending (9? axon b. nucleus d. dendrite The electrical potential across a neuron's membrane when it has not received any stimulus is the __ potential. a. resting c. human (9. action d. threshold What happens first following a neuron stimulation? 3. Sodium ions leave the cell. b. Potassium ions leave the cell. 6? Sodium ions enter the cell. d. Potassium ions enter the cell. Name: Form A 31. The chemical synapse (or space) between two neurons _. 6? involves a transmitter substance from vesicles in the presynaptic neuron that acts upon a receptor site in the postsynaptic neuron _ results from the passage of an electrical charge across the gap has no effect on neurons involves a transmitter substance from vesicles in the postsynaptic neuron that acts upon a receptor site in the presynaptic neuron 32. What is the order of events in the propagation of an action potential down a neuron? (use the following list) 1. Reversal in the electrical charge at the trigger zone 2. Inside of neuron has a negative charge, outside is positive (resting potential) 3. Stimulus at dendrites of neuron 4. Synaptic vesicles release neurotransmitter molecules 5. Action potential travels along axon a. 2,3.1.5,4 @2,3,5.4,1 b.1,2,3,4,5 d. 4,5,3,12 33. Hydra, a cnidarian relative of sea anemones, has _. a. bilateral symmetry b. cephalization c. a digestive tract with two openings (d) a "nerve ne" 34. Which of the following are part of the central nervous system? a. sensory neurons and motor neurons b. brain and motor neurons c. spinal chord and sensory neurons @2 brain and spinal chord 35. Signals from the parasympathetic nervous system cause which of the following? son a. increase in pulse rate (Q decrease in heart rate 1:. rise in blood sugar level d. rise in blood pressure 36. The occipital lobe of the brain (the region on the back side of the brain) is responsible for _. a. sense of taste and smelt @ memory in. vision fie speech 37. What type of receptors are responsible for taste and smell? a. mechanoreceptors c. photoreceptors C13? chemoreceptors d. nociceptors Name: Form A 38. From the following list. describe the correct sequence of events when sound is received by the ear. 1. Movement of oval window Causes waves in the fluid inside cochlear ducts 2. Vibrations are transmitted to the bones of the middle ear 3. Mechanoreptors in the organ of Corti transmit signal to auditory nerve l 4. Sound waves make the eardrum vibrate 5. Stirrup transmits force to the oval window of the cochlea a. 4,2.3,1,5 c. 1,2.3,4.5 b. 2,1,4,3,5 @. 4,2,5,1,3 39. The repeating units of a compound eye. which are found in insects and crustaceans, are called _. a. ocelli ommatidia c. rhabdomeres d. lenses 40. Cones, which are photoreceptors located in the retina, are stimulated by _. a. shades of black & white {9 colored light b. dim light d. cone—shaped objects 41. The function of the endocrine system is to provide the body with w. a. movement within and without of the body, and protection for the organs b. short-tenn control over changes in the internal and external environment a? long-term control over changes in the internal and external environment d. protection against infection and disease 42. Hormones are molecules released from a _ that have effects on _. @ signalling celi; target cells b. signalling cell; non-target celIs c. teenager; their parents d. target cell; signalling cells 43. _ hormones are lipid soluble molecules derived from cholesterol that can diffuse across the lipid bilayer of a target cell's plasma membrane. Peptide c. Nucleotide Glycoprotein d. Steroid 44. _ lowers blood sugar levels; _ raises it. a. Gastrin; insulin c. Gastrin; glucagon an) Glucagon; insulin d. insulin; glucagon 45. ADH and oxytocin are hypothalamic hormones secreted from the _'_ lobe of the pituitary gland. (Hint: which lobe doesn't make it's own hormones} secondary a. b. intermediate © anterior d. posterior Name: Form A _ 46. The pituitary detects a rising hormone concentration in blood and inhibits the gland secreting the hormone. This is a __ feedback loop. a. positive c. long-term (E negative d. none of the above 47. If you eliminated all sources of calcium (dairy products, some vegetables) from your diet the level of which of the following would rise in an attempt to supply calcium stored in émr body to the tissues that need it? parathyroid hormone (PTH) c.\ mineralocorticoids b. aldosterone d. calcitonin _ 48. The integumentary system is responsible for all of the following, except? a. protection against bacterial attack C52 synthesis of certain vitamins c. protection against abrasion d. blood cell formation 49. Which tissue has Haversian canals? a. adipose c. epithelial (9 bone d. cartilage 50. During muscle contractions, _. a. the filaments move toward the middle of the sarcomere during contraction and away on relaxation b. the myofibrils shorten :’ c. the actin and myosin filaments slide over each other @ all of these ...
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