THE CELL
STRUCTURE AND FUNCTION OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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detecting an odor by moving air toward you with your hand
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pulling your hair into a ponytail when working with fire
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testing a substance by tasting it
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watering a plant without wearing gloves
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Detailed explanation-1: -Laboratory chemicals should never be tasted. A pipet bulb, aspirator, or mechanical device must be used to pipet chemicals or to start a siphon. To avoid accidental ingestion of hazardous chemicals, pipetting should never be done by mouth.
Detailed explanation-2: -Extremely poor housekeeping, improper segregation or storage of hazardous chemicals. Poor chemical hygiene. Failure to use protective equipment or follow lab safety procedures while working with hazardous substances. Spills of chemical, biological, or radiological materials in a lab or in common areas.
Detailed explanation-3: -Laboratory workers are exposed to numerous potential hazards including chemical, biological, physical and radioactive hazards, as well as, musculoskeletal stresses. Many workers are unaware of the potential hazards in their work environment, which makes them more vulnerable to injury.
Detailed explanation-4: -Wear safety goggles, disposable hair covers, and masks to protect yourself. Gloves must be disposed of properly before leaving the lab. Smoking, eating, drinking, and chewing gum are prohibited while in the laboratory. Do not apply any type of make-up, lotions, or other substances to your body during a lab.
Detailed explanation-5: -Eating, drinking, smoking, gum chewing, applying cosmetics, and taking medicine in laboratories where hazardous materials are used should be strictly prohibited. Food, beverages, cups, and other drinking and eating utensils should not be stored in areas where hazardous materials are handled or stored.