Quiz 3_ FST 003V 001 WQ 2024 1

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University of California, Davis *

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003

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Chemistry

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Feb 20, 2024

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2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 1/7 Quiz 3 Due Feb 16 at 11:59pm Points 20 Questions 20 Available Feb 16 at 6am - Feb 16 at 11:59pm 17 hours and 59 minutes Time Limit 40 Minutes Instructions Attempt History Attempt Time Score LATEST Attempt 1 16 minutes 20 out of 20 Score for this quiz: 20 out of 20 Submitted Feb 16 at 1:50pm This attempt took 16 minutes. Question 1 1 / 1 pts Humulus yunnanensis Humulus japonicus Correct! Humulus lupulus Welcome to Quiz 3. This week's quiz covers the following topics 1. Hops 2. Yeast The quiz is comprised of 20 questions. The questions is made up of True/False and Multiple choice questions. Once you start the quiz it is timed for 40 minutes. Please complete the quiz in this time. The timer is running once you start and will stop at 40 minutes. Good luck Glen Which species of hop is used for brewing?
2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 2/7 Correct. The lupulus hop is used for brewing. The resin and oils make up lupulin. Question 2 1 / 1 pts Correct! Female Correct. Female hops contain the primary elements brewers use during the brewing process. Male Question 3 1 / 1 pts Correct! A bad idea for beer making Correct. The seeds are held to be detrimental to beer quality although it must be said that the evidence is not overwhelming! A good idea for beer making Question 4 1 / 1 pts 5% 15% Correct! <1% Correct. Hops make a significant contribution to the beer itself - aroma, flavor - but not the costs. 10% Question 5 1 / 1 pts Polyphenols Correct! Resins Do brewers use male or female hops? People believe seeds in hops are Taking the total costs to produce a large-scale commercial beer into account, hops contribute approximately: Bitterness comes from the _____.
2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 3/7 Correct. They comprise the alpha acids that contribute to bitterness and support the foam of the beer. No answer text provided. Anthocyanins Question 6 1 / 1 pts Beta phenols Alpha phenols Correct! Alpha acids Correct. Alpha acids are converted in the brewing process into the bitter elements. Beta acids Question 7 1 / 1 pts True Correct! False They tent to rely on reduced pre-isomerized extract, which decrease the chances that the beer will have a skunky character. Question 8 1 / 1 pts 75% Correct! 25% 5% 50% What is converted into bitter substances? Beers packaged in green or clear bottles often rely on hop pellets to add flavor because they are more stable then whole hops. When using hops in the boil, what percent of resins are utilized and find their way into beer as bitterness?
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2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 4/7 Question 9 1 / 1 pts Correct! True Correct. Hops are an antiseptic, and have several other personal care uses as well such as mouthwash and shampoo. False Question 10 1 / 1 pts Malt Barley Correct! Cannabis Correct. Cannabis and hop plants have similar molecular composition. Caltis Question 11 1 / 1 pts 15 20 25 Correct! 10 Question 12 1 / 1 pts Hydrometer Ebulliometer Correct! Hemocytometer Hops are antiseptic. What is the closest relative to hops? If a beer has a specific gravity of 1.04 how many degrees Plato is that beer? What device is used to count the number of yeast cells?
2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 5/7 None of the above Question 13 1 / 1 pts Correct! Saccharomyces pastorianus Saccharomyces cerevisiae Saccharomyces arboricolus Saccharomyces bayanus Question 14 1 / 1 pts 10 million Correct! 1 million 1 billion 100 million Question 15 1 / 1 pts It evaporates It remains constant It increases Correct! It decreases Question 16 1 / 1 pts 1 million cells/uL/1ºPlato 10 million cells/L/10ºPlato 1 million cells/mL/10ºPlato Lager yeast is What is the quantity of living yeast cells needed for every milliliter of wort for every degree Plato? When yeast is fermenting, what happens to specific gravity? A typical pitching rate for yeast is what?
2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 6/7 Correct! 1 million cells/mL/1ºPlato Question 17 1 / 1 pts Food for animals Making Marmite or Vegemite Product for using in the fermentation stages prior to distillation Correct! Compost for apple orchards Question 18 1 / 1 pts Fluffiness of colonies when grown on agar plates Correct! Methylene blue Methyl red Bud scars Question 19 1 / 1 pts Oxygen Calcium Nitrogen Correct! Zinc Question 20 1 / 1 pts seeing whether it will grow on melibiose studying its flocculation Which of the following is not a common use for spent yeast? Yeast viability can be assessed using What mineral is essential for the enzyme in yeast that produces alcohol? You can tell the age of a yeast cell by
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2024/2/16 13:50 Quiz 3: FST 003V 001 WQ 2024 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 7/7 Correct! counting scars total cell count Quiz Score: 20 out of 20