Quiz 3: FST 003V 001 WQ 2024

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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 18 : 32 Quiz 3: FST 003V 001 WQ 2024 1/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 Quiz 3 截⽌时间 2 16 23:59 得分 20 问题 20 可⽤ 2 16 6:00 2 16 23:59 17 ⼩时 59 分钟 时间限制 40 分钟 说明 尝试历史记录 尝试 时间 分数 最新 尝试 1 18 分钟 20 ,满分 20 此测验的分数: 20 ,满分 20 提交时间 2 16 18:32 此尝试进⾏了 18 分钟。 问题 1 1 / 1 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 When using hops in the boil, what percent of resins are utilized and find their way into beer as bitterness?
2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 2/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 75% 正确 ! 25% 50% 5% 问题 2 1 / 1 正确 ! Lupulin glands Correct. Lupulin are the yellow glands that contain the key components of the hop that the brewer is interested in. Seeds Bract Bracteole 问题 3 1 / 1 正确 ! high alpha acid no alpha acid No answer text provided. low alpha acid 问题 4 1 / 1 Beta phenols 正确 ! Alpha acids Which part of the hop plant is of most interest to brewers? Bittering hops have ________ content. What is converted into bitter substances?
2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 3/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 Correct. Alpha acids are converted in the brewing process into the bitter elements. Alpha phenols Beta acids 问题 5 1 / 1 正确 ! To look for aromas characteristic of that hop variety To look for signs of mites and powdery mildew 正确 ! To look for off flavors Rubbing the hop cones between the hands expresses the aromas of the hop while allowing for the detection of bad odors (e.g., cheesy smell). 问题 6 1 / 1 The mash The filter 正确 ! The kettle The lauter 问题 7 1 / 1 正确 ! Female Correct. Female hops contain the primary elements brewers use during the brewing process. Male Why would someone making beer rub and smell the hops? Where are hops traditionally added during brewing? Do brewers use male or female hops?
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2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 4/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 问题 8 1 / 1 Kepy at 109ºC Kept at 0ºC 正确 ! Dried to less than 9% moisture Correct. If hops are being stored, they need to contain less than 9% moisture to after coming out of the hop kiln. Dried to less than 29% moisture 问题 9 1 / 1 Polyphenols Anthocyanins 正确 ! Resins Correct. They comprise the alpha acids that contribute to bitterness and support the foam of the beer. No answer text provided. 问题 10 1 / 1 True 正确 ! False They tent to rely on reduced pre-isomerized extract, which decrease the chances that the beer will have a skunky character. 问题 11 1 / 1 Fresh hops need to be ____________ if they are to be stored. Bitterness comes from the _____. Beers packaged in green or clear bottles often rely on hop pellets to add flavor because they are more stable then whole hops.
2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 5/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 Oxygen Calcium 正确 ! Zinc Nitrogen 问题 12 1 / 1 Bud scars Methyl red 正确 ! Methylene blue Fluffiness of colonies when grown on agar plates 问题 13 1 / 1 正确 ! It decreases It remains constant It increases It evaporates 问题 14 1 / 1 flavor substances carbon dioxide 正确 ! sugar What mineral is essential for the enzyme in yeast that produces alcohol? Yeast viability can be assessed using When yeast is fermenting, what happens to specific gravity? Which of the following is NOT a product of fermentation?
2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 6/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 alcohol 问题 15 1 / 1 正确 ! True False 问题 16 1 / 1 slower fermentation 正确 ! doesn’t use melibiose uses melibiose 正确 ! more heat tolerant 正确 ! fast fermentation bottom fermenting late hopping 正确 ! top fermenting 正确 ! dry hopping 问题 17 1 / 1 Making Marmite or Vegemite 正确 ! Compost for apple orchards The medieval name for yeast was godesgood. Which of the following pertain to ales and ale yeast? Which of the following is not a common use for spent yeast?
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2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 7/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 Food for animals Product for using in the fermentation stages prior to distillation 问题 18 1 / 1 正确 ! Acetaldehyde Green Apple 正确 ! Esters Fruits (banana, pears) 正确 ! Fatty Acids Wet dog, Goat 正确 ! Diacetyl Butterscotch, Popcorn 正确 ! Hydrogen sulfide Eggy 问题 19 1 / 1 正确 ! Match the yeast byproduct with its corresponding aroma What is Marmite made from?
2024/2/16 18 : 32 Quiz 3: FST 003V 001 WQ 2024 8/8 https://canvas.ucdavis.edu/courses/857612/quizzes/234629 Surplus yeast Hop seeds Barley husks Spent grains 问题 20 1 / 1 正确 ! True False 测验分数: 20 ,满分 20 S. cerevisiae is typically used at higher temperatures than S.pastorianus.