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Nursing Elites

ATI TEAS 7

Biology

1. Which of the following is an example of aseptic technique?

Correct answer: A

Rationale: Rationale: Aseptic technique refers to practices that help prevent the introduction of harmful microorganisms into a sterile environment. Washing hands with soap and water before surgery is an essential component of aseptic technique as it helps reduce the number of microorganisms on the hands, decreasing the risk of introducing pathogens into the surgical site. Coughing into your elbow is a good hygiene practice to prevent the spread of respiratory infections but is not specifically related to aseptic technique. Sharing a stethoscope without cleaning can introduce microorganisms from one patient to another, compromising aseptic conditions. Leaving a wound dressing exposed can lead to contamination and infection, which is contrary to aseptic technique.

2. Where does fertilization, the fusion of sperm and egg, typically occur in the human body?

Correct answer: C

Rationale: The correct answer is C: Fallopian tube. Fertilization, the fusion of sperm and egg, typically occurs in the fallopian tube. After ovulation, the egg is released from the ovary and travels through the fallopian tube where it may encounter sperm for fertilization. The fertilized egg then moves to the uterus for implantation and development. The ovary releases the egg but fertilization occurs in the fallopian tube, making it the correct answer.

3. What property of a substance measures the amount of matter per unit volume?

Correct answer: c

Rationale: Density measures the amount of matter (mass) per unit volume of a substance.

4. Within a nuclear reactor, control rods serve the primary purpose of:

Correct answer: C

Rationale: Control rods within a nuclear reactor serve the primary purpose of absorbing excess neutrons to control criticality. By adjusting the position of the control rods, the reactor operators can regulate the rate of fission reactions and prevent the reactor from overheating or reaching a state of uncontrolled chain reaction. Reflecting neutrons back into the core and moderating the velocity of neutrons are not the primary functions of control rods. Reflectors are used to bounce neutrons back into the core, while moderators slow down fast neutrons to increase the likelihood of fission. Therefore, the correct answer is B: 'Absorbing excess neutrons to control criticality.'

5. Which of the following is a redox reaction?

Correct answer: b

Rationale: The oxidation state of Zn changes from 0 to +2, indicating a redox reaction.

6. Which word is most closely associated with the adjective "ambiguous"?

Correct answer: B

Rationale: "Ambiguous" implies uncertainty or multiple interpretations, making "vague" its closest synonym.

Similar Questions

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What is the principle behind the phenomenon of refraction, where waves bend when entering a new medium?
Which word best completes the sentence: "The scientist's breakthrough was met with _____ applause."

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