Penicillin 1 - Marvel Education

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Practice Reading: Fill in the Blanks (Dropdown) ID: #46872 Penicillin 1

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There is a subtle difference between enduring continuance, which in other words is and firmly adhering to one's chosen course of action which is called obstinacy. Something of note here is the difference between the attitudes of scientists around the world. While some of them persistently work on some projects; others give them up at some or the other. A notable example here is Fleming. Fleming started doing work on penicillin in the late 20s. He tried his best to it but failed in his efforts. He wrote in 1932 that he discontinued working on penicillin and gave his as well. He said that it would never be useful and found it to be very . Later on, in 1941 Florey and Chaine started their efforts to purify penicillin. And because of their persistent efforts, they discovered a to purify it. Both of them along with Fleming were awarded the Nobel Prize.

Result:

A.I. Explanation:

Correct answer: persistance
Explanation: The word 'persistance' fits grammatically as it is a noun that describes the quality of continuing steadily despite problems or difficulties, aligning with the context of enduring continuance. The sentence structure requires a noun that conveys a similar meaning to 'continuance'.
Meaning: 'Persistance' refers to the quality of continuing to do something despite difficulties or opposition.
Wrong options:
determination: 'Determination' implies a firmness of purpose but does not specifically convey the idea of ongoing effort over time, making it less suitable in this context.
steadiness: 'Steadiness' suggests stability but lacks the connotation of ongoing effort or struggle, which is central to the idea of enduring continuance.
diligence: 'Diligence' refers to careful and persistent work or effort, but it does not directly relate to the concept of enduring over time as 'persistance' does.
Correct answer: stage
Explanation: The term 'stage' is appropriate here as it refers to a specific point or period in a process, which fits the context of scientists giving up on projects at various points in their development.
Meaning: 'Stage' means a particular point or period in a process of development.
Wrong options:
period: 'Period' is a broader term that could refer to any length of time, but it does not convey the idea of a specific point in a process as effectively as 'stage'.
step: 'Step' implies a single action or movement in a sequence, which does not capture the idea of a phase in a project’s timeline.
gap: 'Gap' suggests a break or interruption, which does not fit the context of scientists continuing or discontinuing their work.
Correct answer: purify
Explanation: The verb 'purify' fits grammatically and contextually as it describes the action Fleming was attempting to perform on penicillin, aligning with the scientific context of isolating a substance.
Meaning: 'Purify' means to remove impurities or unwanted elements from a substance.
Wrong options:
isolate: 'Isolate' means to separate something from others, which is related but does not specifically convey the action of making something pure.
stabilize: 'Stabilize' refers to making something stable or steady, which does not align with the intent of refining or cleaning a substance.
process: 'Process' is a noun that refers to a series of actions, not an action itself, making it grammatically incorrect in this context.
Correct answer: reasons
Explanation: The word 'reasons' is suitable as it refers to the explanations or justifications for Fleming's decision to stop working on penicillin, fitting the context of providing rationale.
Meaning: 'Reasons' are explanations or justifications for why something is done or why a decision is made.
Wrong options:
causes: 'Causes' refer to factors that bring about an effect, which does not fit the context of explaining a decision.
findings: 'Findings' refer to results or conclusions from research, which does not align with the context of explaining why he discontinued his work.
investigations: 'Investigations' imply a process of inquiry or examination, which does not match the context of providing reasons for a decision.
Correct answer: unstable
Explanation: The adjective 'unstable' fits grammatically and contextually as it describes the nature of penicillin as perceived by Fleming, indicating that it was not reliable or consistent.
Meaning: 'Unstable' means not steady or firm; likely to change or fail.
Wrong options:
undesirable: 'Undesirable' means not wanted or sought after, which does not specifically convey the idea of inconsistency or unreliability.
unreliable: 'Unreliable' suggests a lack of dependability but does not capture the idea of being subject to change as effectively as 'unstable'.
untenable: 'Untenable' refers to something that cannot be maintained or defended, which does not fit the context of describing the nature of penicillin.
Correct answer: process
Explanation: The noun 'process' is appropriate as it refers to a series of actions taken to achieve a particular end, which aligns with the context of discovering a method to purify penicillin.
Meaning: 'Process' refers to a series of actions or steps taken to achieve a particular end.
Wrong options:
project: 'Project' refers to a planned undertaking, which does not fit the context of a method or series of actions for purification.
program: 'Program' typically refers to a planned series of events or activities, which does not align with the context of a method for purification.
plan: 'Plan' suggests a detailed proposal for doing something, which does not convey the ongoing nature of actions taken to achieve purification.

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