lecture%20exam1wa2

lecture%20exam1wa2 - FCC LECTURE EXAM Name: Group: Grade:...

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FCC LECTURE EXAM [ #1 ] Name: Group: Grade: + + = + = % Total 70 questions: 50 multiple choice, matching 10 open questions 10 picture questions Multiple choice 1/ The space between the pleurae of the lungs that extends from the sternum to the vertebral column is the a. cranium b. mediastinum c. pericardial cavity d. thorax 2/. Which of the following statements is true of connective tissue? A) Elastin fibers are sometimes called white fibers. B) When connective tissue is stretched, collagen gives it the ability to snap back. C) Collagen fibers provide high tensile strength. D) Reticular fibers form thick, ropelike structures. Answer: C d. coronal 3/When a blood vessel is severed, the damaged epithelial tissue that lines the vessel would be a. mesothelium b. simple columnar c. endothelium d. simple cuboid 4/Ciliated epithelium that is destroyed by disease would cause malfunction of which body system? a. digestive b. respiratory c. skeletal d. circulatory 5/Which statement about enzymes is false ? A) Enzymes raise the activation energy needed to start a reaction. B) Enzymes are composed mostly of protein. C) Enzymes are organic catalysts. D) Enzymes may be damaged by high temperature. Answer: A 6/Choose the answer that best describes HCO3 - . A) a bicarbonate ion B) common in the liver C) a weak acid D) a proton donor Answer: A 7/ ________ is fat soluble, produced in the skin on exposure to UV radiation, and necessary for normal bone growth and function. A) Vitamin K B) Cortisol C) Vitamin A D) Vitamin D Answer: D 8/Which of the following is not an electrolyte? A) HCl B) Ca 2 CO 3 C) H 2 O D) NaOH
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FCC LECTURE EXAM [ #1 ] Answer: C 9/Sucrose is a ________. A) monosaccharide B) disaccharide C) polysaccharide D) triglyceride Answer: B 10/In order for the DNA molecule to get "short and fat" to become a chromosome, it must first wrap around small molecules called ________. a/ histones b/histamines c/phosphate d/thymine e/uracil 11/Some hormones enter cells via ________. A) exocytosis B) endocytosis C) pinocytosis D) receptor-mediated endocytosis Answer: D 12/Why are free radicals so dangerous to cells, and how are they dealt with by the body? a/ Free radicals are highly reactive chemicals that cause havoc in any cellular environment by reacting with things they should not. Cells with peroxisomes have enzymes specific to reducing free radicals into less reactive chemicals . b/ Free radicals are highly reactive chemicals that cause havoc in any cellular environment by reacting with things they should not. c/ Cells with peroxisomes have enzymes specific to reducing free radicals into less reactive chemicals. d/ Cells with lysosomes have enzymes specific to increase free radicals into less reactive chemicals. 13/Which of the following is true regarding the generation
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This note was uploaded on 10/18/2010 for the course BIO 2402 taught by Professor Opara during the Spring '10 term at Lone Star College.

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lecture%20exam1wa2 - FCC LECTURE EXAM Name: Group: Grade:...

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