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DOs and DONTs of MC Questions
Quiz by Jocelyn Ortiz
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Which item is better?
1a. The mean of a distribution of testscores is the
A. most frequently occurring score
B. 50th percentile
C. average*
D. Measure of score range
1.b University developed an aptitude testto use for admission to its Honors Program. The test was administered to agroup of seven applicants who obtained the following scores:70,72,72,80,89,94,98.
The mean score on the aptitude test is:
A. 72 B. 82* C. 80 D. 90
Which is better?
2a. Suppose you thoroughly and adequatelyexamined a particular type of cell, using the transmission electronicmicroscope, and discovered that it completely lacked ribosomes. You would thenconclude that this cell also lacked:
a)Anucleus c) Celluloseb)DNA d) Protein synthesis*
2b. Ribosomes are important for:
a)the nucleus c) Cellulose
b) DNA d)Protein synthesis*
Which item is better?
Which is better?
Which is better?
Which is better?
Kindly create a 30 items multiple choice test from this laboratory activity entitled laboratory do's and donts: LABORATORY SAFETY Dos: Wear Appropriate Attire: Wear lab coats, safety goggles, gloves, and any other required personal protective equipment (PPE) at all times in the lab. Follow Protocols: Adhere strictly to established protocols and procedures for all experiments and tasks. Label Everything: Clearly label all containers, tubes, vials, and equipment with relevant information, including date, contents, and your initials. Calibrate Instruments: Regularly calibrate and maintain all lab equipment according to manufacturer guidelines to ensure accurate measurements. Keep Workspace Organized: Maintain a clean and organized workspace to prevent contamination and ensure efficient work. Dispose of Waste Properly: Follow the correct disposal procedures for hazardous waste, sharps, and non-hazardous materials in accordance with local regulations. Use Pipette Aids: Always use pipette aids or bulb fillers to avoid mouth pipetting and potential exposure to hazardous substances. Record Observations: Keep detailed and accurate records of your experiments, observations, procedures, and results. Label Samples Clearly: Label all samples with accurate and descriptive information to avoid mix-ups and confusion. Communicate: Maintain clear communication with colleagues and supervisors about your work, findings, and any potential issues. Follow Safety Guidelines: Adhere to all safety guidelines, emergency procedures, and evacuation plans in case of accidents or incidents. Report Accidents and Incidents: Report any accidents, spills, or incidents to your supervisor immediately, no matter how minor they may seem. Don'ts: Don't Eat, Drink, or Smoke: Never consume food, drinks, or smoke inside the laboratory to prevent contamination and chemical exposure. Don't Pipette by Mouth: Avoid mouth pipetting to prevent the risk of inhaling or ingesting hazardous substances. Don't Use Chipped Glassware: Do not use chipped, cracked, or compromised glassware, as they can lead to leaks and contamination. Don't Work Alone: Avoid working in the lab alone, especially with hazardous materials or equipment. Don't Ignore Safety Procedures: Never disregard safety procedures or skip steps, even if you're experienced with a particular task. Don't Contaminate Reagents: Avoid contaminating reagents by using clean tools, pipettes, and containers. Don't Rush: Take your time and follow protocols accurately. Rushing can lead to mistakes and unsafe conditions. Don't Block Emergency Equipment: Keep emergency equipment, such as eyewash stations, fire extinguishers, and safety showers, unobstructed and easily accessible. Don't Pour Chemicals into Sinks: Do not pour chemicals down sinks unless you are certain they are safe to do so, as this can lead to environmental contamination. Don't Use Unlabeled Chemicals: Never use unlabeled or improperly labeled chemicals. Always know what you're working with. Don't Wear Loose Clothing or Jewelry: Avoid wearing loose clothing, open-toed shoes, and excessive jewelry that could get caught in equipment or chemicals. Don't Assume, Ask: If you're unsure about something, never assume. Always ask for guidance from your supervisor or colleagueDos and don'tsDos and don'ts in different culturesDos and dont'sDo's and Don'ts in using a computerDo's and Don'ts in preparing Meal/SnackDO'S AND DONT'S IN TOUR GUIDING Corona Virus Do's and Don'ts