What is the principal reason that organisms such as yeastproduce alcohol?
Q: How does the organism Nitrosopumilus maritimus conserveenergy and obtain carbon?
A: Nitrosopuminlus maritimus is commonly found marine archaeon. It belongs to Group 1a…
Q: What are halophiles? Why do Halobacterium sp. Require sodium and potassium ions?
A: They are salt loving organisms. They include both prokaryotic and eukaryotic organisms. Example :…
Q: . Relatively little is known about many obligate anaerobes. Why would this be so?
A: Obligate anaerobes are the organisms which only grow in the absence of the oxygen.
Q: What is the purpose of the baking soda solution in the leaf disks experiment?
A: Leaf disks experiment is an experimental set up which is aimed at studying the effects of various…
Q: Why do some cells create endospores?
A: Cells are the smallest, functional and structural unit of life
Q: Why is resazurin a useful media additive for the study of anaerobes?
A: Resazurin is a weakly fluorescent, non-toxic, redox-sensitive phenoxazine dye which has a…
Q: Which of the following enzymes would you expect to find in an organism that is obligate aerobe?
A: Obligate aerobes organism that require oxygen for their growth and survival. These organisms use…
Q: What is the purpose of the mashing step in beer-making?
A: Beer is an alcoholic beverage. The production of beer involves the following steps : malting,…
Q: What is the expected isotopic composition of carbon inmethanotrophs (bacteria that consume CH4)?
A: Introduction Methanotrophs are prokaryotic organism which can be either bacteria or archaea. They…
Q: What are Thermoacidophiles ?
A: Thermoacidophiles are organisms that prefer to grow at high temperatures (80°C) and at low pH (pH…
Q: Was there any difference in the amount of gas produced by yeast in room temperature tapwater…
A: Saccharomyces cerevisiae, more commonly known as Baker’s Yeast, is a single-celled microorganism,…
Q: What is the primary reason that wine is pasteurized?
A: Food technology is a branch of science which deals with various aspects of food science such as…
Q: State four reasons why barley is terminated in beer brewing process.
A: Beer brewing: The process of production of beer by steeping a starch source in water,…
Q: Why is it important to determine the number of mesophilic spores in a food ingredient?
A: Sometimes spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…
Q: Where is the dissimilative nitrate reductase found in the cell?What unusual metal does it contain?
A: In anaerobic respiration, an inorganic nitrogen compounds are some of the most common electron…
Q: What mechanisms do free-living diazotrophs use to protectnitrogenase from oxygen?
A: The biological fixation of dinitrogen is the most important way to access N to organisms, this…
Q: The following are major free radical scavengers except: A Superoxide dismutase B Catalase C…
A: Free radicals are generated in the body due to inflammation, radiation, oxygen toxicity, reperfusion…
Q: What is a major habitat for many species of Acidobacteria?
A: Acidobacteria Acidobacteria is a species of bacteria. Members of this species vastly differ…
Q: What are some ways that diazotrophs protectnitrogenase from O2?
A: Certain bacteria and archaea can fix the atmospheric nitrogen into usable forms such as ammonia.…
Q: How is the presence or absence of viable endospores related to sterility?
A: Endospore is a resistant asexual spore that develops inside the bacteria under the extreme…
Q: What is obligate aerobe and obligate anaerobe?
A: Microorganisms are divided into two categories anaerobes and aerobes. These categories are based on…
Q: Under what kind of environmental conditions do yeast make alcohol
A: * Alcoholic fermentation is a process in which yeasts consumes the sugar and convert sugars to…
Q: Can you thoroughly explain the effect of Benzoate at different pH levels on the growth of…
A: Bacteria are defined as the single celled organisms, that can further categorized into two types:…
Q: What is the active agent in the “magic mushrooms” of Mexico, and is it an indole or a catechol?
A: Magic mushrooms (psychoactive fungi) that grow in the United States, Mexico, South America, and many…
Q: Name two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the…
A: Obligate aerobes requires oxygen to oxidize various substrates and obligate anaerobes are generally…
Q: Why would it be beneficial for bacteria to form endospores
A: Endospores are the non-reproductive structures that are produced by the bacteria. They are dormant…
Q: What effect does sodium benzoate appear to have on the fermentation rate of yeasts?
A: Fermentation is a metabolic process that produces chemical changes in organic substrates through the…
Q: What is a microaerophile?
A: Prokaryotes require different environmental conditions for their survival. Some prokaryotes survive…
Q: What is the source of the purple color from which the purplesulfur bacteria get their name?
A: Bacteria are prokaryotic organisms. They are devoid of the cellular organelles like the golgi bodies…
Q: In what ways is Chloracidobacterium thermophilumsimilar to green sulfur bacteria, and in what ways…
A: Bacteria are member of a large group of unicellular microorganisms. Bacteria have cell walls but…
Q: All of the following are cofactors of SOD (superoxide dismutase) EXCEPT? A. Zinc B. Maganese C.…
A: Introduction The enzyme superoxide dismutase catalyses the dismutation (or partitioning) of the…
Q: Why is a GasPak anaerobic jar necessary for the culture of anaerobes on Brewer’s anaerobic agar…
A: Brewer’s anaerobic agar and fluid thioglycollate medium (FTM) are used to grow bacteria. Both of…
Q: How might the bacterial growth curve change if a facultative anaerobe was first monitored for growth…
A: *Facultative anaerobes are bacteria which can grow in presence or absence of oxygen. * oxygen…
Q: if a bacterium lacks cytochrome C oxidase, does that make the bacterium an anaerobe? Explain?
A: Cytochrome c oxidase is an enzyme present in the cytochrome sub unit. This is found in the electron…
Q: In the absence of oxygen, is yeast able to metabolize glucose?
A: Yeast is a vital fungal organism that develops from a single unique cell through the budding…
Q: What is the underlying reason for the differences in spectroscopic properties among the cytochromes?
A: All cytochromes contains the heme group but there are differences in the side chains in different…
Q: Why is oxygen toxic to some bacteria?
A: every bacteria has its optimum condition
Q: Under what conditions do endospores typically form?
A: Bacteria are prokaryotes. To continue their species bacteria reproduce. They reproduce both…
Q: What conditions need to change in order to allow for thermophilic spores to grow instead of…
A: Spores are a dormant form of bacteria. They are tough and highly resistant to unfavorable conditions…
Q: What are the results in the extraction of invertase from baker's yeast? (Lab purposes)
A: Invertase is extracted from yeast to test the activity of an enzyme. It can be affected by different…
Q: what is the enzyme present in squash soup food product?
A: Butternut squash is rich in important vitamins, minerals, and disease-fighting antioxidants. This…
Q: Why is the mold Penicillium economically important?
A: Step 1 Penicillium is a blue or green mold which is a common saprotroph of cold environments growing…
Q: What conditions are necessary to destroy endospores? In what device are these conditions achieved?
A: Endospores are dormant vegetative cells that have a thick outer covering making them resistant to…
Q: Why can alcohol kill bacteria? Explain via proteins.
A: Alcohol kills bacteria through The process called as denaturation. Denaturation takes place when…
Q: What is the morphology and optimum growing conditions of Thermophilic Molds?
A: These are multicellular filamentous fungi.They have thallus which lack true root ,leaves and stem.…
What is the principal reason that organisms such as yeast
produce alcohol?
Step by step
Solved in 2 steps