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Practice with Research Summaries Passages on ACT Science Reasoning

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

A scientist is testing the actions of a new antibiotic. Bacterial species can be either gram-positive or gram-negative. Gram-positive bacteria turn purple when stained with crystal violet; gram-negative bacteria do not. Bacteria can also be anaerobic or aerobic. Anaerobic bacteria need an oxygen-free environment to live; aerobic bacteria need oxygen. Facultative anaerobes are bacteria that can survive in either environment.

A scientist tested the action of a new antibiotic drug, Drug A, by placing the drug in a petri dish smeared with bacteria and observing how large of an area the antibiotic can clear. The larger the radius of the cleared area, the more powerful the drug is against that particular strain of bacteria. The table below shows the effectiveness of the drug against several different bacterial strains.

In general, was this antibiotic more effective against gram-positive or gram-negative bacteria?

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1.

A scientist is testing the actions of a new antibiotic. Bacterial species can be either gram-positive or gram-negative. Gram-positive bacteria turn purple when stained with crystal violet; gram-negative bacteria do not. Bacteria can also be anaerobic or aerobic. Anaerobic bacteria need an oxygen-free environment to live; aerobic bacteria need oxygen. Facultative anaerobes are bacteria that can survive in either environment.

A scientist tested the action of a new antibiotic drug, Drug A, by placing the drug in a petri dish smeared with bacteria and observing how large of an area the antibiotic can clear. The larger the radius of the cleared area, the more powerful the drug is against that particular strain of bacteria. The table below shows the effectiveness of the drug against several different bacterial strains.

The antibiotic was then tested against a new species of bacteria, Species x. On a petri dish smeared with Species x, the radius of the cleared area was 1.1cm. Species x is most likely…

2.

A scientist is testing the actions of a new antibiotic. Bacterial species can be either gram-positive or gram-negative. Gram-positive bacteria turn purple when stained with crystal violet; gram-negative bacteria do not. Bacteria can also be anaerobic or aerobic. Anaerobic bacteria need an oxygen-free environment to live; aerobic bacteria need oxygen. Facultative anaerobes are bacteria that can survive in either environment.

A scientist tested the action of a new antibiotic drug, Drug A, by placing the drug in a petri dish smeared with bacteria and observing how large of an area the antibiotic can clear. The larger the radius of the cleared area, the more powerful the drug is against that particular strain of bacteria. The table below shows the effectiveness of the drug against several different bacterial strains.

Consider the following four antibiotics:

  • Daptomycin: used to kill gram-positive bacteria.
  • Aztreonam: used to kill gram-negative bacteria.
  • Metronidazole: used to kill anaerobes.
  • Rifaximin: used to kill Escherichia coli.

Drug A is most likely which of these antibiotics?

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About This Quiz & Worksheet

This quiz and attached worksheet will help gauge your understanding of research summaries in ACT science reasoning. To ensure that you pass the quiz, you'll have to be able to draw conclusions about reading research passages.

Quiz & Worksheet Goals

Use these assessment tools to measure your ability to:

  • Determine what is most effective in drug testing research
  • Understand the testing and results of antibiotic research

Skills Practiced

This worksheet and quiz let you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the research summaries in ACT science reasoning lesson
  • Critical thinking - apply relevant concepts to examine information about research summaries of science reasoning in a different light
  • Interpreting information - verify that you can read information regarding the effectiveness of drug testing research and interpret it correctly
  • Knowledge application - use your knowledge to answer a question about the results of antibiotic research

Additional Learning

To learn more about research summaries in ACT science reasoning, review the lesson titled Practice with Research Summaries Passages on ACT Science Reasoning. It will allow you to cover the following objectives:

  • Understand research summaries
  • Read and properly utilize the information gleaned from sample research passages
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