What is Diffusion?

Correct Answer: B

Rationale: Diffusion is the process where substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached. Choice A is incorrect because diffusion occurs down the concentration gradient, from high to low concentration, not from low to high concentration. Choice C is incorrect as it refers to the uptake of substances by cells, not the general process of diffusion. Choice D is incorrect as it does not accurately describe the process of diffusion; diffusion involves the movement of substances, not the breaking of materials.

Correct Answer: C

Rationale: The word 'cease' means to stop or come to an end. In the given sentence, it is implied that the rain will stop at sundown, not decrease, begin, or increase. Therefore, the correct option is 'Stop.' 'Decrease' means to become smaller or less, which doesn't fit the context. 'Begin' means to start, which is the opposite of what is stated. 'Increase' means to become or make greater in amount, which is also contrary to the statement.

Correct Answer: B

Rationale: A truculent patient is characterized by being argumentative or hostile. Therefore, the correct answer is 'B: Argumentative.' Choices A, C, and D are incorrect because a truculent patient is not passive, cooperative, or friendly.

Correct Answer: A

Rationale: In aseptic techniques, maintaining the sterility of items is crucial. Placing a sterile packet below waist level exposes it to potential contamination from non-sterile surfaces or objects. Therefore, the correct term to describe the sterile packet in this situation is 'contaminated.' 'Sterilized' (choice B) is incorrect as it implies the packet has undergone a sterilization process, which may not be the case if it is now considered contaminated. 'Clean' (choice C) is incorrect because although the packet was initially sterile, placing it below waist level compromises its cleanliness. 'Untouched' (choice D) is incorrect as the packet has been touched or exposed to non-sterile areas, leading to potential contamination.

Correct Answer: B

Rationale: The correct meaning of 'contingent' is dependent, indicating reliance on something else. Choice A, 'Certain,' is incorrect as it means clearly established or assured, which does not align with the meaning of 'contingent.' Choice C, 'Unrelated,' is also incorrect as it means not connected or associated with, which is a different concept. Choice D, 'Guaranteed,' is not synonymous with 'contingent' as it implies assurance or confirmation, not dependency.

Correct Answer: C

Rationale: The word 'staggered' is associated with unsteadiness or imbalance in movement. Stumbling is the most suitable synonym among the given choices to convey this meaning. 'Fell,' 'fumbled,' and 'pirouetted' do not accurately capture the idea of unsteadiness or imbalance conveyed by the word 'staggered.' 'Fell' generally means coming down from a standing position, 'fumbled' implies clumsiness or mishandling, and 'pirouetted' refers to a specific graceful ballet move, none of which align with the meaning of 'staggered.'

Correct Answer: B

Rationale: The correct answer is B: 'Inducing sleep.' The term 'soporific' refers to something that causes sleepiness or drowsiness, leading to sleep. Choices A, C, and D are incorrect because they do not accurately represent the meaning of soporific. Choice A is the opposite since it means causing excitement, not drowsiness. Choices C and D are related to pain relief, which is not the primary association with the term soporific.

Correct Answer: B

Rationale: The correct answer is B, 'Evisceration.' Evisceration specifically means the surgical removal of an organ's contents. Choice A, 'Excretion,' is the process of eliminating waste products from the body and is not related to surgical procedures. Choice C, 'Incision,' refers to the act of cutting into the body, commonly done in surgeries but not specifically related to removing organ contents. Choice D, 'Reduction,' generally means to make something smaller or lessen its size, which is not the term used for the surgical removal of an organ's contents.

Correct Answer: B

Rationale: The correct answer is B, 'Burdensome.' The term 'onerous' is used to describe something that is burdensome, oppressive, or difficult to deal with. Choices A, C, and D are incorrect because 'easy,' 'interesting,' and 'relaxing' do not convey the same meaning as 'onerous.'