Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 24, Problem 20RQ
Yeast is a facultative anaerobe. This means that alcohol fermentation takes place only if:
- the temperature is close to 37°C
- the atmosphere does not contain oxygen
- sugar is provided to the cells
- light is provided to the cells
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Which of the following organisms can use fermentation to produce energy? Select all that apply.
Saccharomyces yeasts
Lactobacillus bacteria
Humans
What is the end product of fermentation?
Lactic acid
Oxygen
Ethanol
Two of the above
If an organism tests positive for catalase, which of the following is MOST likely true about the organism?
It can only do homolactic fermentation
It returns nitrogen back to the atmosphere
It can break down plasma membranes
It creates H2O as a product of respiration
Chapter 24 Solutions
Biology 2e
Ch. 24 - Figure 24.14 Which of the following statements is...Ch. 24 - Figure 24.17 Which of the following statements is...Ch. 24 - Figure 24.21 If symbiotic fungi are absent from...Ch. 24 - Which polysaccharide is usually found in the cell...Ch. 24 - Which of these organelles is not found in a fungal...Ch. 24 - The wall dividing individual cells in a fungal...Ch. 24 - During sexual reproduction, a homothallic mycelium...Ch. 24 - The life cycles of perfect fungi are most similar...Ch. 24 - The most primitive phylum of fungi is the...Ch. 24 - Members of which phylum produce a club shaped...
Ch. 24 - Members of which phylum establish a successful...Ch. 24 - The fungi that do not reproduce sexually used to...Ch. 24 - A scientist discovers a new species of fungus that...Ch. 24 - What term describes the close association of a...Ch. 24 - Why are fungi important decomposers? They produce...Ch. 24 - Consider an ecosystem where all the fungi not...Ch. 24 - A fungus that climbs up a tree reaching higher...Ch. 24 - A fungal infection that affects nails and skin is...Ch. 24 - The targets for anti-fungal drugs are much more...Ch. 24 - Yeast is a facultative anaerobe. This means that...Ch. 24 - The advantage of yeast cells over bacterial cells...Ch. 24 - Why are fungal insecticides an attractive...Ch. 24 - What are the evolutionary advantages for an...Ch. 24 - Compare plants, animals, and fungi, considering...Ch. 24 - Why is the large surface area of the mycelium...Ch. 24 - What is the advantage for a basidiomycete to...Ch. 24 - For each of the four groups of perfect fungi...Ch. 24 - Why does protection from light actually benefit...Ch. 24 - Ambrosia bark beetles carry Amb/os/e//a fungal...Ch. 24 - Ecologists often attempt to introduce new plants...Ch. 24 - Why can superficial mycoses in humans lead to...Ch. 24 - Explain how the Red Queen Hypothesis describes the...Ch. 24 - Historically, artisanal breads were produced by...Ch. 24 - How would treating an area of a forest with a...
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- Yeast is a facultative anaerobe. This means that alcohol fermentation takes place only if: a. the temperature is close to 37°C b. the atmosphere does not contain oxygen c. sugar is provided to the cells d. light is provided to the cellsarrow_forwardBeer is produced by yeast fermentation of grain to ethanol. Why must the process of beer production be anaerobic?arrow_forwardAnaerobic bacteria produces which of the following inhibitory toxic product? -methilane -cyanide oxides -fatty acids -sulphidesarrow_forward
- In fermentative metabolism, a microbe produces ATP by: oxidizing NADH to form the proton motive force more than one of the answers is correct generation of a proton motive force by transfer of electrons to oxygen substrate level phosphorylationarrow_forwardSubstrate level phosphorylation occurs in all of the following except: fermentation glycolysis electron transport chain Krebs cyclearrow_forwardWhat waste product do yeast produce under anaerobic conditions? lactic acid ethyl alcohol pyruvic acid creatinearrow_forward
- Pseudomonas aeruginosa might contribute to denitrification under which conditions? In an anaerobic environment with no carbon/energy source In an anaerobic environment with a carbon/energy source In an aerobic environment with a carbon/energy source In an aerobic environment with no carbon/energy sourcearrow_forwardWhich of the following is true about Purple Sulfur Bacteria? Choose all possible answers. found within the order Chromatiales anoxygenic phototrophs use CO2 as an electron donor for photosynthesis Examples include Cyanobacteria, Synechococcus and Prochlorococcus All of the statements are true about Purple sulfur bacteria.arrow_forwardAbacteria isolated from Yellowstone National Park is found to use the chemical methane as a food source. Which term best describes the energy source for this organism? OChemotroph OPhototroph OHeterotroph OAutotropharrow_forward
- Which of the statements about alcohol producing fermentation is FALSE? a) Lactic acid may be produced as a byproduct b) It produces CO2 c) It allows the cell to continue producing ATP when oxygen is low d) It generates more ATP than aerobic respirationarrow_forwardClostridium perfringens bacteria, which can survive and grow on frostbitten human tissues, but only in the complete absence of oxygen gas, are properly categorized as: anaerobic autotrophs facultative autotrophs anaerobic heterotrophs aerobic heterotrophs aerobic autotrophsarrow_forwardChoose the odd one for fermentation It occurs in prokaryotes and unicellular eukaryotes only It occurs in absence of oxygen Net gain of only two molecules of ATP from each molecule of glucose There is no any net gain of NADH + H+arrow_forward
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