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Practice Listening: Highlight Incorrect Words ID: #48645 Medium Yeast
Instructions ›
You will hear a recording. Below is a transcription of the recording. Some words in the transcription differ from what the speaker said. Please click on the words that are different.
* Click on the words that are different from what you hear
Result:
Yeast. They already participate in producing some of the most popular pain-killing substances around: beer and wine. Now, scientists have engineered yeast that can also make one of the most powerful analgesics: morphine. Their work is in the journal Nature Chemical Biology. Opiates like morphine and codeine are essential for treating severe pain. But making these meds isn't easy. All are derived from opium poppies, and tens to hundreds of thousands of tons are needed to meet global needs. The crops can also be affected by climate, disease and even political turmoil in the countries where the plants are grown, which further limits commercial production. To get around these potential challenges, researchers have turned to yeast, an organism that can be grown easily on indutrial scales. The scientists inserted into yeast cells a handful of genes isolated from the opium poppy. These genes encode the enzymes the plants use to produce opiates.
AI explanationShows the answer. Tap to open.
Printed "likenesses", the speaker says "scientists"

Explanation: You will hear "scientists have engineered yeast". Likenesses appears on the page, but you hear scientists. They start with different letters, so listen from the first sound.

Printed "protein", the speaker says "morphine"

Explanation: On the recording the words are "like morphine and codeine". The printed word "protein" makes no sense in this line, so click "protein".

Printed "fennel", the speaker says "potential"

Explanation: Listen again to "potential challenges, researchers have". Printed "fennel" is not the audio word, and the spoken word is much longer.

Printed "cambial", the speaker says "indutrial"

Explanation: In the audio you hear "on indutrial scales". Both words end with "al", so listen to the start to tell them apart.

"beer" matches the audio

Explanation: "beer and wine" is printed exactly here. It may look tricky, but the speaker says it exactly. Do not click "beer".

"Nature" matches the audio

Explanation: "journal Nature Chemical Biology" names the journal in the text. The speaker reads it exactly, so do not click "Nature".

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