INTERNATIONAL AS BIOLOGY BL01 (9610) Unit 1 The Diversity of Living Organisms Mark scheme January 2021 Version: 1.0 Final

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INTERNATIONAL AS BIOLOGY BL01 (9610) Unit 1 The Diversity of Living Organisms Mark scheme January 2021 Version: 1.0 Final Microbiology BIO 250 EXAM UNIT 1-4 Tools of the Laboratory (Graded A )2022 Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 ALL ANSWERS 100% CORRECT SOLUTION AID GRADE A Course Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6. (BIOD171) Institution Portage Learning True or False: A virus is considered a microorganism. False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 2. What is the smallest biological unit of life? A cell. 3. At a generalized level, all cells are comprised of what? Macromolecules* *A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they must answer with all four to be fully correct. 1. How many different types of amino acids are available from which to make proteins? 20 2. Define an essential amino acid. An essential amino acid cannot be produced by the human body and as such must be take in from the environment through alternative sources (i.e) food.Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 ALL ANSWERS 100% CORRECT SOLUTION AID GRADE A 1. The plasma membrane (select all that are true): A. Restricts movement of materials in and out of the cell B. Is often a triple layer comprised of lipids C. Prevents essential nutrients from escaping D. Contains hydrophobic tails pointing outward A and C 2. How many carbon atoms are present in the monosaccharide glucose? A. 1 B. 3 C. 6 D. 12 MATH 1280 Assignment Unit 6- University of the People BioBeyond Unit 4: Rise of the Animals: Nilpena, Australia Over 500 million AQA OXFORD INTERNATIONAL AS BIOLOGY (9610) Unit 1 The Diversity of Living Organisms _QP_2021 algebra 2 final exam 2019-2021-2020- 2022, with answers are at the end of the page, unit 1,2,3,4,5,..., review, quizlet, online, (multiple choice doc) SCH3U 101 - Jarvis Collegiate Institute. Unit 3 – Stiochiometry Lab. Experimentally calculate the mass of product, and calculate the percent yield using stoichiometry in the following double displacement “gas forming” reaction: odium carbonate hydrochloric acid → sodium chloride carbon dioxide gas liquid water Cognitive Level: Application Client Needs: Safe, Effective Care Environment Nursing Process: Assessment 3. The nurse is caring for four clients on a medical–surgical unit. The secretary gives the nurse the morning labs. Which of the following labs would require that the nurse call the physician and inform the healthcare provider about the client’s abnormalities? 1. WBC 14,600 mm3 2. Serum protein 6.9 g/dL 3. I & D (incision and drainage) showing no growth for the last 24 hours 4. Albumin 4.2 g/dL Answer: 1 Rationale: When the nurse is caring for several clients, all of the labs should be checked frequently throughout the shift to assess for any abnormalities. The WBC in option 1 is abnormal. (Normal WBC 4,000–10,000 mm3 .) All of the other lab results are within acceptable range; therefore, the results should not be called in to the physician. Cognitive Level: Application Client Needs: Physiologic Integrity Nursing Process: Assessment 4. The nurse is orienting a new graduate. The nurse is reinforcing the importance of standard precautions. Which of the following observations by the nurse would require further education regarding standard precautions? 1. The graduate nurse understands to wash hands when entering and exiting the client’s room. 2. The graduate nurse wears gloves when serving breakfast trays to various clients. 3. The graduate nurse wears a gown, gloves, and goggles when suctioning a client. 4. The graduate nurse leaves all supplies in the room of a client who is in contact isolation. Answer: 2 Rationale: The nurse must have an understanding of standard precautions. Prevention is the most important measure to prevent nosocomial infections. Standard precautions were published in 1996 that provide guidelines for the handling of download full file at http://testbankinstant.com blood and other body fluids. These guidelines are used with all clients, regardless of whether they have a known infectious disease. Standard precautions are used by all healthcare workers who have direct contact with clients or with their body fluids. It is not necessary for the nurse to wear gloves while delivering food trays to the client, because there is not contact with the client. Cognitive Level: Application Client Needs: Safe, Effective Care Environment Nursing Process: Evaluation 5. The admitting department alerts the nurse on a medical–surgical unit that a client with active tuberculosis (TB) is being admitted to the unit. Which type of isolation is appropriate based on the client’s diagnosis? 1. Standard precautions 2. Airborne precautions 3. Droplet precautions 4. Contact precautions Answer: 2 In addition to handwashing and standard precautions, the nature and spread of some infectious diseases require that special techniques be used to protect uninfected clients and workers. The client with pulmonary tuberculosis will be placed in airborne precautions. The client should be placed in a private room with special ventilation that does not allow air to circulate to general hospital ventilation; a mask or special filter respirators will be used for everyone entering the room. Cognitive Level: Application Client Needs: Safe, Effective Care Environment Nursing Process: Assessment 6. A client is receiving IV vancomycin for the treatment of Clostridium difficile. The nurse understands that the client who develops flushing, tachycardia, and hypotension during the infusion of vancomycin indicates: 1. Ototoxicity effect. 2. Superinfection. 3. Red man syndrome. 4. Hives. Answer: 3 download full file at http://testbankinstant.com Rationale: Vancomycin inhibits cell wall synthesis, and is used for serious infections. It is only effective against gram-positive bacteria, especially Staphylococcus aureus and Staphylococcus epidermidis. The nurse should infuse this medication slowly over 60 minutes or more to avoid “red man” syndrome. The syndrome is characterized by erythematous rash, flushing, tachycardia, and hypotension. Clients can become dizzy and agitated. Cognitive Level: Application Client Needs: Physiological Integrity Nursing Process: Evaluation 7. The physician has ordered for the client to receive a trough blood level to evaluate the therapeutic effect of an antibiotic. The nurse understands that the trough should be ordered: 1. A few minutes before the next scheduled dose of medication. 2. 1–2 hours after the oral administration of the medication. 3. 30 minutes after the IV administration. 4. During the infusion of the antibiotic. Answer: 1 Rationale: Antibiotic peak and trough levels monitor therapeutic blood levels of the prescribed medication. The therapeutic range—the minimum and maximum blood levels at which the drug is effective—is known for a given drug. By measuring blood levels at the predicted peak (1–2 hours after oral administration, 1 hour after intramuscular administration, and 30 minutes after IV administration) and trough (usually a few minutes before the next scheduled dose), it is also possible to determine whether the drug is reaching a toxic or harmful level during therapy, increasing the likelihood of adverse effects. Cognitive Level: Application Client Needs: Safe, Effective Care Environment Nursing Process: Assessment 8. The nurse needs to change a dressing on the client’s abdomen. Which of the following techniques should be implemented? 1. Contact precautions 2. Standard precautions 3. Droplet p LETRS Unit 1: The Challenge of Learning to Read

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